Author: "Université Toulouse III - Paul Sabatier (UT3)" / Publisher: acm / Topic: business - Searchworks@Jio Institute Digital Library Search Results

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1. OFC

Author: Bernabé Batchakui, Josiane Kouam, Kevin Nguetchouang, Alain Tchana, Timothy Wood, Daniel Hagimont, Jinho Hwang, Renaud Lachaize, Mathieu Bacou, Stéphane Pouget, Noel De Palma, Lucien Ngale, Djob Mvondo, Efficient and Robust Distributed Systems (ERODS ), Laboratoire d'Informatique de Grenoble (LIG), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Algorithms and Software Architectures for Distributed and HPC Platforms (AVALON), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire de l'Informatique du Parallélisme (LIP), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Département Informatique (INF), Institut Mines-Télécom [Paris] (IMT)-Télécom SudParis (TSP), Institut Polytechnique de Paris (IP Paris), Algorithmes, Composants, Modèles Et Services pour l'informatique répartie (ACMES-SAMOVAR), Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux (SAMOVAR), Institut Mines-Télécom [Paris] (IMT)-Télécom SudParis (TSP)-Institut Mines-Télécom [Paris] (IMT)-Télécom SudParis (TSP), Ecole Nationale Supérieure Polytechnique de Yaoundé (ENSPY), Université de Yaoundé I, inTeRnet BEyond the usual (TRiBE ), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Facebook, The George Washington University (GW), Système d’exploitation, systèmes répartis, de l’intergiciel à l’architecture (IRIT-SEPIA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), Inria associated team MLNS2 with ENSP Yaoundé in Cameroon, Grid'5000 is supported by a scientific interest group (GIS) hosted by Inria and including CNRS, RENATER and several Universities as well as other organizations., Inria has been supporting Grid'5000 through ADT ALADDIN-G5K (2007-2013), ADT LAPLACE (2014-2016), and IPL HEMERA (2010-2014)., 'Studio virtuel' project of BPI and ERDF/FEDER (grant agreement number 16.010402.01), 'HYDDA' project of BPI Grant, the 'IDEX IRS' (COMUE UGAgrant), NSF CNS-1823236, NSF CNS-1837382.5, Grid'5000, ANR-18-CE25-0016,Scalevisor,Scalevisor: un hyperviseur pour rack désagrégé(2018), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Département Informatique (TSP - INF), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), and Université de Toulouse (UT)
Subjects: Stateless protocol, Service (systems architecture), business.industry, Computer science, media_common.quotation_subject, Serverless, 020206 networking & telecommunications, Cloud computing, 02 engineering and technology, Functions as a service (FaaS), Set (abstract data type), Cache, Resource (project management), 020204 information systems, Persistent object store, Latency, 0202 electrical engineering, electronic engineering, information engineering, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Function (engineering), business, media_common, Computer network
Abstract: International audience; Cloud applications based on the "Functions as a Service" (FaaS) paradigm have become very popular. Yet, due to their stateless nature, they must frequently interact with an external data store, which limits their performance. To mitigate this issue, we introduce OFC, a transparent, vertically and horizontally elastic in-memory caching system for FaaS platforms, distributed over the worker nodes. OFC provides these benefits cost-effectively by exploiting two common sources of resource waste: (i) most cloud tenants overprovision the memory resources reserved for their functions because their footprint is non-trivially input-dependent and (ii) FaaS providers keep function sandboxes alive for several minutes to avoid cold starts. Using machine learning models adjusted for typical function input data categories (e.g., multimedia formats), OFC estimates the actual memory resources required by each function invocation and hoards the remaining capacity to feed the cache. We build our OFC prototype based on enhancements to the OpenWhisk FaaS platform, the Swift persistent object store, and the RAM-Cloud in-memory store. Using a diverse set of workloads, we show that OFC improves by up to 82 % and 60 % respectively the execution time of single-stage and pipelined functions.
Published: 2021

2. MarkedBERT: Integrating Traditional IR Cues in Pre-trained Language Models for Passage Retrieval

Author: Lila Boualili, Mohand Boughanem, Jose G. Moreno, Recherche d’Information et Synthèse d’Information (IRIT-IRIS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse III - Paul Sabatier (UT3)
Subjects: Exact Matching, Passage Retrieval, Focus (computing), business.industry, Computer science, Deep learning, 05 social sciences, 010501 environmental sciences, Machine learning, computer.software_genre, 01 natural sciences, [INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL], Ranking (information retrieval), Task (computing), Deep Learning, Ranking, [INFO.INFO-IR]Computer Science [cs]/Information Retrieval [cs.IR], 0502 economics and business, Language model, Artificial intelligence, 050207 economics, business, computer, 0105 earth and related environmental sciences
Abstract: International audience; The Information Retrieval (IR) community has witnessed a flourishing development of deep neural networks, however, only a fewmanaged to beat strong baselines. Among them, models like DRMM and DUET were able to achieve better results thanks to the properhandling of exact match signals. Nowadays, the application of pre-trained language models to IR tasks has achieved impressive resultsexceeding all previous work. In this paper, we assume that established IR cues like exact term-matching, proven to be valuable fordeep neural models, can be used to augment the direct supervision from labeled data for training these pre-trained models. To studythe effectiveness of this assumption, we propose MarkedBERT a modified version of one of the most popular pre-trained modelsvia language modeling tasks, BERT. MarkedBERT integrates exact match signals using a marking technique that locates and highlightsExact Matched query-document terms using marker tokens. Experiments on MS MARCO Passage Ranking task show that our rathersimple approach is actually effective. We find that augmenting the input with marker tokens allows the model to focus on valuabletext sequences for IR.
Published: 2020

3. Optimizing Vehicle-to-Cloud Data Transfers using Soft Real-Time Scheduling Concepts

Author: Olivier Flébus, Michael Lauer, Jean-Charles Fabre, Jean Ibarz, Matthieu Roy, Équipe Tolérance aux fautes et Sûreté de Fonctionnement informatique (LAAS-TSF), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Continental Digital Services in France, ENSEEIHT, Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse III - Paul Sabatier (UT3), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Ecole Nationale Supérieure d'Electrotechnique, d'Electronique, d'Informatique, d'Hydraulique et de Télécommunications (ENSEEIHT), and Université de Toulouse (UT)-Université de Toulouse (UT)
Subjects: IoT, data collection, Optimization problem, Computer science, Event based, Distributed computing, real-time, 02 engineering and technology, 01 natural sciences, Scheduling (computing), mobile system, embedded system, [INFO.INFO-SY]Computer Science [cs]/Systems and Control [cs.SY], 0202 electrical engineering, electronic engineering, information engineering, V2C, Intelligent transportation system, reliability, Data collection, Job shop scheduling, business.industry, 010401 analytical chemistry, 020206 networking & telecommunications, event-based, 0104 chemical sciences, Cloud data, distributed sensing, Internet of Things, business
Abstract: International audience; The main promise of intelligent transportation systems (ITS) is that leveraging the information sensed by millions of vehicles will increase the quality of the user's experience. However, the unpredictable nature of road events, combined with a projected network overload, calls for a careful optimization of the vehicles' data transfers, taking into account spatio-temporal, safety and value constraints. In this article, we provide a methodical solution to optimize vehicle-to-cloud (V2C) data transfers, based on a series of steps. First, we show that this optimization problem can be modeled as a soft real-time scheduling problem. Second, we provide an extension of a classical algorithm for the generation of workloads, by increasing its coverage with regards to our use-case representation. Third, we estimate the bounds of an optimal clairvoyant algorithm in order to have a baseline for a fair comparison of existing scheduling algorithms. The results show that, within all these algorithms, one clearly outperforms the others regardless of the load rate. Interestingly, its performance gain increases when overload grows, and it can be implemented very efficiently, which makes it highly suitable for embedded systems.
Published: 2020

4. Automation Experience across Domains: Designing for Intelligibility, Interventions, Interplay and Integrity

Author: Matthias Baldauf, Philippe Palanque, Virpi Roto, Thomas Meneweger, Peter Fröhlich, Fabio Paternò, Manfred Tscheligi, Zoe M. Becerra, Austrian Institute of Technology [Vienna] (AIT), University of Applied Sciences St. Gallen (FHSG), Interactive Critical Systems (IRIT-ICS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, School of Arts, Design and Architecture [Aalto], Aalto University, Universität Salzburg, Georgia Institute of Technology [Atlanta], Istituto di Informatica e Telematica [Pisa], Consiglio Nazionale delle Ricerche [Pisa] (CNR PISA), Austrian Research Promotion Agency FFG : projects 'auto.Bus –Seestadt' (FFG No. 860822) part of the program 'Mobilität der Zukunft' and MMAssist II (FFG No. 858623) part of the program 'Produktion der Zukunft', Austrian Ministry for Transport, Innovation and Technology, SNF Sinergia program: Project VA-PEPR, grant agreement No. CRSII5_189955, European Project: 695965,H2020,H2020-EE-2015-2-RIA,Sim4Blocks(2016), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), and Université de Toulouse (UT)
Subjects: Integrity, Computer science, Psychological intervention, [INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE], 02 engineering and technology, Intelligibility (communication), Automation experience, User requirements document, Automation, User experience design, 0202 electrical engineering, electronic engineering, information engineering, Interplay, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Everyday life, 050107 human factors, User experience, business.industry, 05 social sciences, 020207 software engineering, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Human intervention, User Experience, [INFO.INFO-PF]Computer Science [cs]/Performance [cs.PF], Automation Experience, Engineering ethics, Human Intervention, business, Intelligibility
Abstract: International audience; Automation takes up an increasingly important role in everyday life. The objective of the workshop is to provide a forum for a holistic view on design foundations for automated systems in everyday private, public and professional surroundings. We conceive the workshop as an interdisciplinary forum for user-centered design and research, taking inspiration from diverse problem areas and application fields. Given their current relevance for automation experience, four key aspects (intelligibility, interventions, interplay, and integrity) will be addressed in expert talks, participant presentations and group-wise creative thinking exercises. The workshop will provide a further step towards a research agenda for comprehensive design and research approaches that provide a transfer and consolidation across different application domains, user requirements and system capabilities.
Published: 2020

5. Forward and backward feature selection for query performance prediction

Author: Radu Tudor Ionescu, Sébastien Déjean, Zia Ullah, Josiane Mothe, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of Bucharest (ROMANIA), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Institut de Mathématiques de Toulouse UMR5219 (IMT), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), University of Bucharest (UniBuc), Systèmes d’Informations Généralisées (IRIT-SIG), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), and Université de Toulouse (UT)
Subjects: FOS: Computer and information sciences, Computer Science - Machine Learning, Computer science, Inference, Machine Learning (stat.ML), Feature selection, 02 engineering and technology, QPP, Machine learning, computer.software_genre, Machine Learning (cs.LG), Computer Science - Information Retrieval, Statistics - Machine Learning, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, Performance prediction, Information retrieval, Relevance (information retrieval), Linear regression, Query performance prediction, Interpretation (logic), business.industry, AIC criterion, Recherche d'information, 020207 software engineering, 16. Peace & justice, Task (computing), Predictive model, [INFO.INFO-IR]Computer Science [cs]/Information Retrieval [cs.IR], Selective model, Artificial intelligence, business, computer, Information Retrieval (cs.IR)
Abstract: The goal of query performance prediction (QPP) is to automatically estimate the effectiveness of a search result for any given query, without relevance judgements. Post-retrieval features have been shown to be more effective for this task while being more expensive to compute than pre-retrieval features. Combining multiple post-retrieval features is even more effective, but state-of-the-art QPP methods are impossible to interpret because of the black-box nature of the employed machine learning models. However, interpretation is useful for understanding the predictive model and providing more answers about its behavior. Moreover, combining many post-retrieval features is not applicable to real-world cases, since the query running time is of utter importance. In this paper, we investigate a new framework for feature selection in which the trained model explains well the prediction. We introduce a step-wise (forward and backward) model selection approach where different subsets of query features are used to fit different models from which the system selects the best one. We evaluate our approach on four TREC collections using standard QPP features. We also develop two QPP features to address the issue of query-drift in the query feedback setting. We found that: (1) our model based on a limited number of selected features is as good as more complex models for QPP and better than non-selective models; (2) our model is more efficient than complex models during inference time since it requires fewer features; (3) the predictive model is readable and understandable; and (4) one of our new QPP features is consistently selected across different collections, proving its usefulness., Accepted at SAC 2020
Published: 2020

6. ALCOVE

Author: Bernard Oriola, Frédéric Rayar, Christophe Jouffrais, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique (CNRS), Laboratoire Cherchons Pour Voir (CPV), Université Fédérale Toulouse Midi-Pyrénées-Institut des Jeunes Aveugles [Toulouse] (IJA)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Image & Pervasive Access Lab (IPAL), Institute for Infocomm Research - I²R [Singapore]-Centre National de la Recherche Scientifique (CNRS)-Agency for science, technology and research [Singapore] (A*STAR)-MATHEMATIQUES, SCIENCES ET TECHNOLOGIES DE L'INFORMATION ET DE LA COMMUNICATION (UJF)-National University of Singapore (NUS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Tours (FRANCE), and Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France)
Subjects: Activities of daily living, Computer science, media_common.quotation_subject, Internet privacy, Visual impairment, [SCCO.COMP]Cognitive science/Computer science, 02 engineering and technology, Comics, Page layout, [SCCO]Cognitive science, 03 medical and health sciences, Presentation, 0302 clinical medicine, Reading (process), 0202 electrical engineering, electronic engineering, information engineering, medicine, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Recreation, media_common, Evaluation methods, business.industry, Reading mode, 4. Education, 16. Peace & justice, Accessibility design, [SCCO.PSYC]Cognitive science/Psychology, 030221 ophthalmology & optometry, [INFO.INFO-ET]Computer Science [cs]/Emerging Technologies [cs.ET], 020201 artificial intelligence & image processing, Accessible comics, Low vision people, medicine.symptom, business, Mobile device, Alcove
Abstract: International audience; Low vision is a visual impairment that affects one's capacity to perform daily activities, among others, reading. Since difficulty to access printed materials is an obstacle to education, employment and social activities, adaptations of these material is often required, such as the usage of large print or audio transcriptions. The advent of digital documents, on computers and mobile devices, has enhanced the accessibility of text for people with low vision; however, there is still a lack of supply regarding accessible books for recreation reading. In this work, we study how an accessible reader can impact reader's engagement with comics, for both children and adults. We summarise the results of online surveys that have been conducted about the current usage of comics by reader with low vision and how professional attempt to provide them. This led to the design of ALCOVE, an accessible comic reader for people with low vision. We report the results of a user study with 11 participants with low vision, that examined both the usefulness of the proposed comic reader and the reading presentation mode. Results show that the participants found our application easy and very convenient to use.
Published: 2020

7. Cellular Uplink Bandwidth Prediction Based on Radio Measurements

Author: Philippe Owezarski, Imane Oussakel, Pascal Berthou, Équipe Services et Architectures pour Réseaux Avancés (LAAS-SARA), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UPS), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), and OUSSAKEL, Imane
Subjects: [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], software defined radio, cellular networks, Computer science, business.industry, Quality of service, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Testbed, 020206 networking & telecommunications, Throughput, 02 engineering and technology, Software-defined radio, Index Terms-QoS monitoring, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], machine learning, User equipment, Telecommunications link, bandwidth prediction, 0202 electrical engineering, electronic engineering, information engineering, Cellular network, Bandwidth (computing), business, QoS monitoring, Computer network
Abstract: International audience; In 4G networks, the emergence of machine communications such as connected vehicles increases the high demand of uplink transmissions, thus, degrading the quality of service per user equipment. Enforcing quality-of-service in such cellular network is challenging, as radio phenomenon, as well as user (and their devices) mobility and dynamics, are uncontrolled. To solve this issue, estimating what the quality of transmissions will be in a short future for a connected user is essential. For that purpose, we argue that radio metrics are key features whose evolutions can help predicting the bandwidth that the considered connections can take advantage of in the following hundreds of milliseconds. The paper then describes how a 4G testbed has been deployed in order to study the correlation between radio noise and throughput in uplink transmissions. Based on radio measurements, the main supervised machine learning algorithms are used, such as Random Forest and Support Vector Machine to predict the uplink received bandwidth. For a specific user service, we are able to predict the end-to-end received bandwidth, i.e. the amount of received data on the server side during a specific period at a very low scale of 100 ms. Results also prove that uplink bandwidth predictions are less accurate compared to bandwidth prediction for downlink based on radio measurements.
Published: 2019

8. aMV-LSTM

Author: Mohand Boughanem, Taoufiq Dkaki, Jose G. Moreno, Thiziri Belkacem, Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Recherche d’Information et Synthèse d’Information (IRIT-IRIS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Université Toulouse III - Paul Sabatier (UT3), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Matching (statistics), Process (engineering), Computer science, Attention models, Text matching, 02 engineering and technology, computer.software_genre, Position (vector), 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, Layer (object-oriented design), Traitement du texte et du document, Positional, business.industry, 020207 software engineering, Text representation, Weighting, [INFO.INFO-TT]Computer Science [cs]/Document and Text Processing, Identification (information), Artificial intelligence, business, computer, Feature learning, Word (computer architecture), Natural language processing
Abstract: National audience; Deep models are getting a wide interest in recent NLP and IR state-of-the-art. Among the proposed models, position-based models and attention-based models take into account the word position in the text, in the former, and the importance of a word among other words in the latter. The positional information are some of the important features that help text representation learning. However, the importance of a given word among others in a given text, which is an important aspect in text matching, is not considered in positional features. In this paper, we propose a model that combines position-based representation learning approach with the attention-based weighting process. The latter learns an importance coefficient for each word of the input text. We propose an extension of a position-based model MV-LSTM with an attention layer, allowing a parameterizable architecture. We believe that when the model is aware of both word position and importance, the learned representations will get more relevant features for the matching process. Our model, namely aMV-LSTM, learns the attention based coefficients to weight words of the different input sentences, before computing their position-based representations. Experimental results, in question/answer matching and question pairs identification tasks, show that the proposed model outperforms the MV-LSTM baseline and several state-of-the-art models.
Published: 2019

9. A new approach for spatio-temporal data mining

Author: Sabine Cassat, Emmanuel Dubois, Pourang Irani, Marcos Serrano, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, University of Manitoba [Winnipeg], Université Toulouse III - Paul Sabatier (UT3), and AFIHM
Subjects: robotics, Complex data type, Spatio-temporal dataset, business.industry, Computer science, Interpretation (philosophy), 05 social sciences, interaction tangible, robotique, 020207 software engineering, Robotics, 02 engineering and technology, tangible interaction, Visualization, Data visualization, Human–computer interaction, 0202 electrical engineering, electronic engineering, information engineering, data visualization, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Artificial intelligence, Données spatio-temporelles, business, Temporal data mining, 050107 human factors
Abstract: International audience; Des ensembles de données spatio-temporelles (DST) sont générés quotidiennement. Généralement, leur visualisation est basée sur des rendus 2D ou des visualisations animées, peu adaptés à l’exploration de telles données. Dans cet article, nous présentons une alternative aux approches existantes en termes de visualisations. Notre approche propose d'explorer la combinaison d'interfaces tangibles, de robots et d'un écran tactile pour faciliter l’accès, l’interprétation et la manipulation de ce type de données. Si l'apport des interfaces tangibles a déjà été exploré pour représenter des informations simples, notre approche vise à dépasser ces associations directes pour permettre d'explorer des ensembles de données multidimensionnelles au-delà de la 3D.; Spatio-temporal datasets (STD) are generated daily. Generally, their visualization includes 2D renderings or animated visualizations that do not fit to the exploration of such complex data. In this paper, we present an alternative approach to current STD visualizations. Our approach uses tangible and visual tools such as mini-robots and a tactile interaction screen to facilitate access, interpretation and manipulation of this kind of data. While tangible elements have been introduced to represent information, our system provides a new approach to explore multidimensional datasets that conventional tools would not allow.
Published: 2018

10. A pen-based bimanual approach for interaction in multi-display environments

Author: Elio Keddisseh, Marcos Serrano, Emmanuel Dubois, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse III - Paul Sabatier (UT3), and AFIHM
Subjects: Pen-based input, Computer science, business.industry, 05 social sciences, Bimanual input, 020207 software engineering, Usability, 02 engineering and technology, Time cost, Interaction Bimanuelle, Human–computer interaction, Environement multi-ecrans, Multi-display environments, 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], business, 050107 human factors
Abstract: International audience; Recent advances in multi-display environments (MDE) has led researchers to develop separated interaction techniques for separated MDE tasks. However, these techniques were not adapted to realistic usage situations. Additionally, when the use of a pen tablet is required, to annotate a document for example, its use in combination with the standard keyboard and mouse often results in homing time cost. In this paper we explore a bimanual approach to support major MDE tasks: it is based on the combination of a multi-degree of freedom device and a pen. Moreover, we explain our approach and current implementation. Finally, we discuss our future work and envisioned studies to evaluate the usability of such an approach.; Les avancées récentes dans les environnements multi-écrans (MDE) ont conduit les chercheurs à développer des techniques d'interaction distinctes pour les différentes tâches effectuées dans ces environnements. Cependant, ces techniques sont souvent peu adaptéesà des situations d'utilisation réalistes. De plus, dans les situations où un stylet est requis pour prendre des notes par exemple, sa combinaison avec le clavier et la souris standard entraîne des surcoûts en termes de temps de changement de dispositifs. Dans cet article, nous explorons une approche bimanuelle permettant la prise en charge des principales tâches dans les MDE et basée sur le couplage d'un dispositif à multiples degrés de liberté et d'un stylet. Nous décrivons notre approche et sa mise en œuvre actuelle. Enfin, nous discutons nos futurs travaux et les études envisagées pour évaluer l'utilisabilité d'une telle approche.
Published: 2018

11. Engineering Automations

Author: Philippe Palanque, Interactive Critical Systems (IRIT-ICS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - INPT (FRANCE)
Subjects: Computer science, Process (engineering), media_common.quotation_subject, 02 engineering and technology, Interface homme-machine, Automation, Presentation, Engineering, Factor (programming language), 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], 050107 human factors, media_common, computer.programming_language, Authority, business.industry, 05 social sciences, Perspective (graphical), Global vision, 020207 software engineering, Function allocation, State (computer science), Software engineering, business, computer, PATH (variable)
Abstract: International audience; In the literature, automation is usually addressed as a goal (produce systems that are as autonomous as possible) as a process (producing systems with autonomous behaviors) or as a state (a system performing in an autonomous way). These uses suggest that automation is a global concept that does not need decomposing. However, when designing systems (including interactive systems), automation can only be incorporated at very low-level details, when some functions (previously performed by humans) are migrated to the system. There is a similarity between this global vision of automation and the global vision of human body in biology before the advent of anatomy (that aims at decomposing organisms in parts) and physiology (that aims at understanding the functions of organisms and their parts). This presentation will follow the path of anatomy and physiology to understand better what automation is, how automation can be designed, how partly autonomous systems can better support users and why full automation is a desirable but foolish, inadvisable and unwise target.
Published: 2018

12. Inclusive Education Technologies

Author: Marcos Serrano, Stacy M. Branham, Emeline Brulé, Christophe Jouffrais, Shaun K. Kane, Oussama Metatla, Anja Thieme, Cynthia L. Bennett, University of Bristol [Bristol], Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Image & Pervasive Access Lab (IPAL), Institute for Infocomm Research - I²R [Singapore]-Centre National de la Recherche Scientifique (CNRS)-Agency for science, technology and research [Singapore] (A*STAR)-MATHEMATIQUES, SCIENCES ET TECHNOLOGIES DE L'INFORMATION ET DE LA COMMUNICATION (UJF)-National University of Singapore (NUS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire Cherchons Pour Voir (CPV), Université Fédérale Toulouse Midi-Pyrénées-Institut des Jeunes Aveugles [Toulouse] (IJA)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Centre National de la Recherche Scientifique (CNRS), Microsoft Research [Cambridge] (Microsoft), Microsoft Research, University of Colorado [Boulder], University of Maryland [Baltimore County] (UMBC), University of Maryland System, Télécom ParisTech, University of Washington [Seattle], Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Télécom Paris (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of Bristol (UNITED KINGDOM), University of Maryland (USA), Microsoft (USA), University of Colorado at Boulder - UCB (USA), University of Washington (USA), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Institut National Polytechnique de Toulouse - INPT (FRANCE), Telecom ParisTech (FRANCE), School of Electronic Engineering and Computer Science, Queen Mary University of London (QMUL), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut des Jeunes Aveugles [Toulouse] (IJA)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Culture Lab [Newcastle], Newcastle University [Newcastle], Département Sciences économiques et sociales (SES), Laboratoire Traitement et Communication de l'Information (LTCI), and Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Knowledge management, Computer science, Best practice, [SCCO.COMP]Cognitive science/Computer science, Engineering Education Research Group, 02 engineering and technology, Space (commercial competition), Education, [SCCO]Cognitive science, [INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG], Visual impairments, 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Hobby, ComputingMilieux_MISCELLANEOUS, 050107 human factors, Inclusion, Scope (project management), business.industry, 4. Education, 05 social sciences, 020207 software engineering, Cognition, Accessibility, Apprentissage, Variety (cybernetics), Work (electrical), [SCCO.PSYC]Cognitive science/Psychology, [INFO.INFO-ET]Computer Science [cs]/Emerging Technologies [cs.ET], business, Inclusion (education)
Abstract: International audience; Technology has become central to many activities of learning, ranging from its use in classroom education to work training, mastering a new hobby, or acquiring new skills of living. While digitally-enhanced learning tools can provide valuable access to information and personalised support, people with specific accessibility needs, such as low or no vision, can often be excluded from their use. This requires technology developers to build more inclusive designs and to offer learning experiences that can be shared by people with mixed-visual abilities. There is also scope to integrate DIY approaches and provide specialised teachers with the ability to design their own low cost educational tools, adapted to pedagogical objectives and to the variety of visual and cognitive abilities of their students. For researchers, this invites new challenges of how to best support technology adoption and its evaluation in often complex educational settings. This workshop seeks to bring together researchers and practitioners interested in accessibility and education to share best practices and lessons learnt for technology in this space; and to jointly discuss and develop future directions for the next generation design of inclusive and effective education technologies.
Published: 2018

13. Visual Composition of Graphical Elements on Non-Rectangular Displays

Author: Anne Roudaut, Pourang Irani, Marcos Serrano, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), University of Manitoba (CANADA), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of Bristol (UNITED KINGDOM), Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, University of Bristol [Bristol], University of Manitoba [Winnipeg], and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Computer science, H5.2, Context (language use), 02 engineering and technology, Interface homme-machine, Freeform display, Set (abstract data type), Visual design guidelines, Human–computer interaction, Computer graphics (images), 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Non-rectangular display, Composition (language), 050107 human factors, Graphical user interface, Communication design, business.industry, 05 social sciences, 020207 software engineering, User interface, Composition (visual arts), business
Abstract: International audience; Graphical user interfaces are composed of varying elements (text, images, etc.) whose visual arrangement has been relatively well established in the context of rectangular interfaces. The advent of non-rectangular displays questions this knowledge. In this paper we study how traditional content layouts can be adapted to fit different non-rectangular displays. We performed a first qualitative study where graphic designers fitted text and images into different non-rectangular displays. From the analysis of their output we generalize and adapt ten composition principles that have been proposed in the literature for rectangular displays. We evaluate the revised principles through a paired comparison questionnaire where 57 participants compared pairs of layouts. Using the Bradley-Terry-Luce model to analyze our data we show that some results contradict current conventions on visual design for rectangular displays. We then extracted the most interesting cases and conducted a follow up study with additional shapes to investigate how the principles generalize. From these results we propose a set of guidelines for designing visual content for non-rectangular displays.
Published: 2017

14. A reconstruction of default conditionals within epistemic logic

Author: Christos Moyzes, Costas D. Koutras, Christos Rantsoudis, University of Peloponnese, Department Of Computer Science, University of Liverpool, Logique, Interaction, Langue et Calcul (IRIT-LILaC), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of Liverpool (UNITED KINGDOM), University of the Peloponnese - UOP (GREECE), and Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France)
Subjects: Knowledge representation and reasoning, Statement (logic), Computer science, media_common.quotation_subject, 02 engineering and technology, 01 natural sciences, Theoretical Computer Science, Possible world, Operator (computer programming), Epistemic modal logic, 0202 electrical engineering, electronic engineering, information engineering, 0101 mathematics, Axiom, Normality, media_common, Logique en informatique, Algebra and Number Theory, business.industry, 010102 general mathematics, Default Ccnditionals, [INFO.INFO-LO]Computer Science [cs]/Logic in Computer Science [cs.LO], Modal logic, 16. Peace & justice, Strict conditional, Conditional logic, Quantifier (logic), Computational Theory and Mathematics, 020201 artificial intelligence & image processing, Artificial intelligence, Epistemic logic, business, Mathematical economics, Information Systems
Abstract: International audience; Default conditionals are statements that express a condition of normality, in the form ‘if φ then normally ψ’ and are of primary importance in Knowledge Representation. There exist modal approaches to the construction of conditional logics of normality. Most of them are built on notions of preference among possible worlds, corresponding to the semantic intuition that φ ⇒ ψ is true in a situation if in the most preferred (most ‘normal’) situations in which φ is true, ψ is also true. It has been noticed that there exist natural epistemic readings of a default conditional, but this direction has not been thoroughly explored. A statement of the form ‘something known to be a bird, that can be consistently believed to fly, does fly’ involves well-known epistemic attitudes and allows the possibility of defining defaults within the rich framework of Epistemic Logic. We pursue this direction here and proceed to define conditionals within KBE, a recently introduced S4.2-based modal logic of knowledge, belief and estimation. In this logic, knowledge is a normal S4 operator, belief is a normal KD45 operator and estimation is a non-normal operator interpreted as a ‘majority’ quantifier over the set of epistemically alternative situations. We define and explore various conditionals using the epistemic operators of KBE, capturing φ ⇒ ψ in various ways, including ‘according to the agent’s knowledge, an estimation that φ is true implies the estimation that (φ∧ψ) is true’ or ‘if φ is known and there is no reason to believe ¬ψ then ψ can be plausibly inferred’. Overall, we define here three nonmonotonic default conditionals, one conditional satisfying monotonicity (strengthening the antecedent) and two nonmonotonic conditionals that do not satisfy the ubiquitous axiom ID (reflexivity). Our project provides concrete evidence that the machinery of epistemic logic can be exploited for the study of default conditionals.
Published: 2017

15. Uncovering Influence Cookbooks

Author: Erwan Le Merrer, Gilles Trédan, Technicolor, Équipe Tolérance aux fautes et Sûreté de Fonctionnement informatique (LAAS-TSF), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), and Université de Toulouse (UT)
Subjects: FOS: Computer and information sciences, Reverse engineering, Exploit, Computer science, media_common.quotation_subject, [INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS], 02 engineering and technology, Topology, computer.software_genre, [INFO.INFO-SI]Computer Science [cs]/Social and Information Networks [cs.SI], Ranking (information retrieval), 020204 information systems, 0502 economics and business, 0202 electrical engineering, electronic engineering, information engineering, Function (engineering), media_common, Social and Information Networks (cs.SI), Service (business), Social network, business.industry, 05 social sciences, Rank (computer programming), Computer Science - Social and Information Networks, Metric (mathematics), business, computer, 050203 business & management
Abstract: Ensuring the early detection of important social network users is a challenging task. Some peer ranking services are now well established, such as PeerIndex, Klout, or Kred. Their function is to rank users according to their influence. This notion of influence is however abstract, and the algorithms achieving this ranking are opaque. Following the rising demand for a more transparent web, we explore the problem of gaining knowledge by reverse engineering such peer ranking services, with regards to the social network topology they get as an input. Since these services exploit the online activity of users (and therefore their connectivity in social networks), we provide a precise evaluation of how topological metrics of the social network impact the final user ranking. Our approach is the following : we first model the ranking service as a black-box with which we interact by creating user profiles and by performing operations on them. Through those profiles, we trigger some slight topological modifications. By monitoring the impact of these modifications on the rankings of those profiles, we infer the weight of each topological metric in the black-box, thus reversing the service influence cookbook., Comment: To appear in CSCW 2017 (The 20th ACM Conference on Computer-Supported Cooperative Work and Social Computing)
Published: 2017

16. A Comparison of Genetic Regulatory Network Dynamics and Encoding

Author: Jean Disset, Sylvain Cussat-Blanc, Yves Duthen, Hervé Luga, Dennis G. Wilson, Stéphane Sanchez, Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - INPT (FRANCE)
Subjects: 0301 basic medicine, Scheme (programming language), Theoretical computer science, Computer science, 02 engineering and technology, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Set (abstract data type), 03 medical and health sciences, Traitement des images, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Encoding (memory), Genetic algorithm, 0202 electrical engineering, electronic engineering, information engineering, Traitement du signal et de l'image, H- INFORMATIQUE, Synthèse d'image et réalité virtuelle, computer.programming_language, Degree (graph theory), business.industry, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, Genetic algorithms, Network dynamics, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], Representations, 030104 developmental biology, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], Benchmark (computing), 020201 artificial intelligence & image processing, Artificial intelligence, business, Fitness evaluations, computer
Abstract: International audience; Genetic Regulatory Networks (GRNs) implementations have a high degree of variability in their details. Parameters, encoding methods, and dynamics formulas all differ in the literature, and some GRN implementations have a high degree of model complexity. In this paper, we present a comparative study of different implementations of a GRN and introduce new variants for comparison. We use a modified Genetic Algorithm (GA) to evaluate GRN performance on a number of common benchmark tasks, with a focus on real-time control problems. We propose an encoding scheme and set of dynamics equations that simplifies implementation and evaluate the evolutionary fitness of this proposed method. Lastly, we use the comparative modifications study to demonstrate overall enhancements for GRN models.
Published: 2017

17. SegChain

Author: Adrian-Gabriel Chifu, Sébastien Fournier, Systèmes d’Informations Généralisées (IRIT-SIG), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire des Sciences de l'Information et des Systèmes (LSIS), Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Paristech ENSAM Aix-en-Provence-Université de Toulon (UTLN)-Aix Marseille Université (AMU), Recherche d’information et Interactions (R2I), Laboratoire d'Informatique et Systèmes (LIS), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), and Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Arts et Métiers Paristech ENSAM Aix-en-Provence-Centre National de la Recherche Scientifique (CNRS)
Subjects: Video production, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Context (language use), 02 engineering and technology, computer.software_genre, Multimedia broadcasting, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Web searching and information discovery, [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering, Lexical chains, 0202 electrical engineering, electronic engineering, information engineering, [INFO]Computer Science [cs], Segmentation, Video retrieval, ComputingMilieux_MISCELLANEOUS, Structure (mathematical logic), Multimedia, business.industry, 020207 software engineering, Transcriptions, Variety (cybernetics), Story segmentation, [INFO.INFO-IR]Computer Science [cs]/Information Retrieval [cs.IR], Video search, 020201 artificial intelligence & image processing, Artificial intelligence, business, computer, Natural language processing
Abstract: International audience; With the advances in multimedia broadcasting through a rich variety of channels and with the vulgarization of video production, it becomes essential to be able to provide reliable means of retrieving information within videos, not only the videos themselves. Research in this area has been widely focused on the context of TV news broadcasts, for which the structure itself provides clues for story segmentation. The systematic employment of these clues would lead to thematically driven systems that would not be easily adaptable in the case of videos of other types. The systems are therefore dependent on the type of videos for which they have been designed. In this paper we aim at introducing SegChain, a generic unsupervised framework for story segmentation, based on lexical chains from transcriptions. SegChain takes into account the topic changes by perceiving the fluctuations of the most frequent terms throughout the video.
Published: 2016

18. From drawing to animation-ready vector graphics

Author: Loïc Barthe, Marie-Paule Cani, M. van de Panne, Even Entem, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National de la Recherche en Informatique et en Automatique - INRIA (FRANCE), Université Grenoble Alpes - UGA (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of British Columbia (CANADA), Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments (IMAGINE ), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Laboratoire Jean Kuntzmann (LJK ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Structural Models and Tools in Computer Graphics (IRIT-STORM), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse III - Paul Sabatier (UT3), University of British Columbia (UBC), ERC-2011-ADG_20110209, ACM, European Project: 291184,EC:FP7:ERC,ERC-2011-ADG_20110209,EXPRESSIVE(2012), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), and Université de Toulouse (UT)
Subjects: Sketching, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, 02 engineering and technology, Vector graphics, Traitement des images, vector drawing analysis, Salience (neuroscience), Medial axis, Computer graphics (images), 0202 electrical engineering, electronic engineering, information engineering, Computer Graphics, Traitement du signal et de l'image, Computer vision, Synthèse d'image et réalité virtuelle, ComputingMethodologies_COMPUTERGRAPHICS, business.industry, Shape from drawings, 020207 software engineering, Animation, Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], shape segmentation, Salient, drawing edition, 020201 artificial intelligence & image processing, Geometric modeling, Artificial intelligence, business
Abstract: International audience; We present an automatic method to build a layered vector graphics structure ready for animation from a clean-line vector drawing of an organic, smooth shape. Inspiring from 3D segmentation methods, we introduce a new metric computed on the medial axis of a region to identify and quantify the visual salience of a sub-region relative to the rest. This enables us to recursively separate each region into two closed sub-regions at the location of the most salient junction. The resulting structure, layered in depth, can be used to pose and animate the drawing using a regular 2D skeleton.
Published: 2016

19. A Video Timeline with Bookmarks and Prefetch State for Faster Video Browsing

Author: Wei Tsang Ooi, Axel Carlier, Vincent Charvillat, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), National University of Singapore - NUS (REPUBLIC OF SINGAPORE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), and National University of Singapore (NUS)
Subjects: Instruction prefetch, Multimedia, Computer science, business.industry, Bookmarks, Prefetching, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Video browsing, Timeline, Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, computer.software_genre, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Traitement des images, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, User experience design, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], Hit rate, Traitement du signal et de l'image, User interface, business, Synthèse d'image et réalité virtuelle, computer
Abstract: International audience; Reducing seek latency by predicting what the users will access is important for user experience, particularly during video browsing, where users seek frequently to skim through a video. Much existing research strived to predict user access pattern more accurately to improve the prefetching hit rate. This paper proposed a different approach whereby the prefetch hit rate is improved by biasing the users to seek to prefetched content with higher probability, through changing the video player user interface. Through a user study, we demonstrated that our player interface can lead to up to 4$\times$ more seeks to bookmarked segments and reduce seek latency by 40\%, compared to a video player interface commonly used today. The user study also showed that the user experience and the understanding of the video content when browsing is not compromised by the changes in seek behavior. .
Published: 2015

20. A Design Space for Exploring Rich and Complex Information Environments

Author: Augusto Celentano, Emmanuel Dubois, University of Ca’ Foscari [Venice, Italy], Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse III - Paul Sabatier (UT3), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Università Ca' Foscari (ITALY), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Computer science, Context (language use), 02 engineering and technology, Interface homme-machine, Zooming interface, Domain (software engineering), Multi-device, Information visualization, Human–computer interaction, 11. Sustainability, Zooming interfac, 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Analytical approach, Design space, Multidimensional data, Domain of discourse, Design methods, 050107 human factors, Théorie de l'information, Class (computer programming), business.industry, 05 social sciences, 020207 software engineering, Visualization, [INFO.INFO-IT]Computer Science [cs]/Information Theory [cs.IT], Software deployment, Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni, business
Abstract: International audience; In this paper we discuss the visualization and interaction paradigms based on overview+detail and focus+context models, proposing a design methodology suitable for rich information environments, made of multivariate data and multi-device deployment. We propose to identify a set of meaningful categories of information visualization and interaction corresponding to different user goals and exploration spaces, starting from a global universe of discourse and going down into the ultimate data items, through discrete intermediate steps corresponding to structured context and overview levels. Each category de nes an association with a speci c knowledge goal, the deployment on a suitable class of devices and the access through adequate interaction techniques. Such design methodology is applied to two case studies, one in the domain of energy consumption management, the other in cultural heritage fruition.
Published: 2015

21. Bonjour! Greeting Gestures for Collocated Interaction with Wearables

Author: Simon T. Perrault, Steven Houben, Marcos Serrano, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), University College of London - UCL (UNITED KINGDOM), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), National University of Singapore - NUS (REPUBLIC OF SINGAPORE), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), University College of London [London] (UCL), National University of Singapore (NUS), Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Head worn display, InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI), Computer science, business.industry, 05 social sciences, Input techniques, Wearable computer, 020207 software engineering, 02 engineering and technology, Interface homme-machine, Head-worn display, Smartwatch, Wearable interaction, Human–computer interaction, 0202 electrical engineering, electronic engineering, information engineering, Device Pairing, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], business, 050107 human factors, Wearable technology, Information exchange, Gesture
Abstract: International audience; Wearable devices such as smartwatches (SW) and head-worn displays (HWD) are gaining popularity. To improve the collocated capabilities of wearables, we need to facilitate collocated interaction in a socially acceptable manner. In this paper we propose to explore widespread used greeting gestures such as handshakes or head gestures to perform collocated interactions with wearables. These include pairing devices or information exchange. We analyze the properties of greetings and how they can map to different levels of wearable pairing (family, friend, work, stranger). This paper also suggest how these gestures could be detected with SWs and HWDs.
Published: 2015

22. A Priori Relevance Based On Quality and Diversity Of Social Signals

Author: Mohand Boughanem, Ismail Badache, Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Systèmes d’Informations Généralisées (IRIT-SIG), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse III - Paul Sabatier (UT3), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Badache, Ismail, Recherche d’Information et Synthèse d’Information (IRIT-IRIS), and ACM SIGIR
Subjects: Priors, Signals diversity, Process (engineering), Computer science, media_common.quotation_subject, Language models, 02 engineering and technology, Machine learning, computer.software_genre, [INFO.INFO-SI]Computer Science [cs]/Social and Information Networks [cs.SI], Resource (project management), 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, Quality (business), Relevance (information retrieval), Social signals, ComputingMilieux_MISCELLANEOUS, media_common, Théorie de l'information, Information retrieval, Social network, business.industry, [INFO.INFO-SI] Computer Science [cs]/Social and Information Networks [cs.SI], Recherche d'information, [INFO.INFO-IT]Computer Science [cs]/Information Theory [cs.IT], [INFO.INFO-IR]Computer Science [cs]/Information Retrieval [cs.IR], A priori and a posteriori, 020201 artificial intelligence & image processing, [INFO.INFO-IR] Computer Science [cs]/Information Retrieval [cs.IR], Artificial intelligence, Language model, Web resource, business, computer, Diversity (business)
Abstract: International audience; Social signals (users' actions) associated with web resources (documents) can be considered as an additional information that can play a role to estimate a priori importance of the resource. In this paper, we are particularly interested in: first, showing the impact of signals diversity associated to a resource on information retrieval performance; second, studying the influence of their social networks origin on their quality. We propose to model these social features as prior that we integrate into language model. We evaluated the effectiveness of our approach on IMDb dataset containing 167438 resources and their social signals collected from several social networks. Our experimental results are statistically significant and show the interest of integrating signals diversity in the retrieval process.
Published: 2015

23. Automatic Assessment of Speech Capability Loss in Disordered Speech

Author: Lionel Fontan, Peggy Gatignol, Charlotte Alazard-Guiu, M. Robert, Julie Mauclair, Thomas Pellegrini, Jérôme Farinas, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Groupe Hospitalier Universitaire Pitié-Salpêtrière (FRANCE), Université Paris Ouest Nanterre La Défense (FRANCE), Unité de Recherche Interdisciplinaire Octogone-Lordat - URI Octogone-Lordat (Toulouse, France), Équipe Structuration, Analyse et MOdélisation de documents Vidéo et Audio (IRIT-SAMoVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Unité de Recherche Interdisciplinaire Octogone-Lordat (Octogone-Lordat), Université Toulouse - Jean Jaurès (UT2J), Université Paris Nanterre (UPN), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Fédérale Toulouse Midi-Pyrénées-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and CHU Pitié-Salpêtrière [APHP]
Subjects: Computer science, Speech recognition, Goodness of pronunciation, Realization (linguistics), Context (language use), Pronunciation, Lexicon, computer.software_genre, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Correlation, Traitement des images, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Phone, Traitement du signal et de l'image, Synthèse d'image et réalité virtuelle, Automatic assessment of pronunciation, business.industry, Disordered speech, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, Language acquisition, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], Computer Science Applications, Human-Computer Interaction, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], Artificial intelligence, business, computer, Natural language processing
Abstract: International audience; In this article, we report on the use of an automatic technique to assess pronunciation in the context of several types of speech disorders. Even if such tools already exist, they are more widely used in a different context, namely, Computer-Assisted Language Learning, in which the objective is to assess nonnative pronunciation by detecting learners' mispronunciations at segmental and/or suprasegmental levels. In our work, we sought to determine if the Goodness of Pronunciation (GOP) algorithm, which aims to detect phone-level mispronunciations by means of automatic speech recognition, could also detect segmental deviances in disordered speech. Our main experiment is an analysis of speech from people with unilateral facial palsy. This pathology may impact the realization of certain phonemes such as bilabial plosives and sibilants. Speech read by 32 speakers at four different clinical severity grades was automatically aligned and GOP scores were computed for each phone realization. The highest scores, which indicate large dissimilarities with standard phone realizations, were obtained for the most severely impaired speakers. The corresponding speech subset was manually transcribed at phone level; 8.3% of the phones differed from standard pronunciations extracted from our lexicon. The GOP technique allowed the detection of 70.2% of mispronunciations with an equal rate of about 30% of false rejections and false acceptances. Finally, to broaden the scope of the study, we explored the correlation between GOP values and speech comprehensibility scores on a second corpus, composed of sentences recorded by six people with speech impairments due to cancer surgery or neurological disorders. Strong correlations were achieved between GOP scores and subjective comprehensibility scores (about 0.7 absolute). Results from both experiments tend to validate the use of GOP to measure speech capability loss, a dimension that could be used as a complement to physiological measures in pathologies causing speech disorders.
Published: 2015

24. Towards Skeleton based Reconstruction : From Projective Skeletonization to Canal Surface Estimation

Author: Bestein Durix, Géraldine Morin, Lionel Garnier, Céline Roudet, Sylvie Chambon, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université de Bourgogne - UB (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), Laboratoire Electronique, Informatique et Image [UMR6306] (Le2i), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut de recherche en informatique de Toulouse ( IRIT ), Institut National Polytechnique [Toulouse] ( INP ) -Université Toulouse 1 Capitole ( UT1 ) -Université Toulouse - Jean Jaurès ( UT2J ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Electronique, Informatique et Image ( Le2i ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Surface (mathematics), [ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, [ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processing, Skeleton (category theory), [ INFO.INFO-CV ] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Topology, Skeletonization, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Traitement des images, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Projection (mathematics), Morphological skeleton, [ INFO.INFO-TI ] Computer Science [cs]/Image Processing, skeleton, Traitement du signal et de l'image, Computer vision, [ INFO.INFO-AI ] Computer Science [cs]/Artificial Intelligence [cs.AI], Synthèse d'image et réalité virtuelle, Skeleton, ComputingMethodologies_COMPUTERGRAPHICS, 3d reconstruction, business.industry, Perspective (graphical), [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Triangulation (computer vision), [ INFO.INFO-GR ] Computer Science [cs]/Graphics [cs.GR], Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], perspective skeletonization, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], Topological skeleton, Artificial intelligence, Reconstruction, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
Abstract: International audience; We present a novel approach to reconstruct a 3D object from images corresponding to two different viewpoints: we estimate the skeleton of the object instead of its surface. The originality of the method is to be able to reconstruct a tubular object with a limited number of input images. Unlike classical reconstruction methods, like multi-view stereo or more recently structure-from-motion, this approach does not rely on interest points but estimates the topology of the object and derives its surface. Our contribution are twofold. First, given two perspective images of the 3D shape, the projection of the skeleton is computed in 2D. Secondly the 3D skeleton is reconstructed from the two projections using triangulation and matching. A mesh is finally derived for each skeleton branch.
Published: 2015

25. Understanding the impact of the role factor in collaborative information retrieval

Author: Laure Soulier, Lynda Tamine, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Systèmes d’Informations Généralisées (IRIT-SIG), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Institut National Polytechnique de Toulouse - INPT (FRANCE)
Subjects: Knowledge management, User study, Computer science, Exploratory search, 02 engineering and technology, Session (web analytics), 020204 information systems, Factor (programming language), 0202 electrical engineering, electronic engineering, information engineering, computer.programming_language, Théorie de l'information, Information retrieval, user behavior analysis, business.industry, 05 social sciences, Recherche d'information, Collaborative information retrieval, user study, [INFO.INFO-IR]Computer Science [cs]/Information Retrieval [cs.IR], Mediation, User behavior analysis, 0509 other social sciences, 050904 information & library sciences, business, computer, Division of labour
Abstract: International audience; Collaborative information retrieval systems often rely on division of labor policies. Such policies allow work to be divided among collaborators with the aim of preventing redundancy and optimizing the synergic effects of collaboration. Most of the underlying methods achieve these goals by the means of explicit vs. implicit role-based mediation. In this paper, we investigate whether and how different factors, such as users' behavior, search strategies, and effectiveness, are related to role assignment within a collaborative exploratory search. Our main findings suggest that: (1) spontaneous and cohesive implicit roles might emerge during the collaborative search session implying users with no prior roles, and that these implicit roles favor the search precision, (2) role drift might occur alongside the search session performed by users with prior-assigned roles.
Published: 2015

26. A 3D collaborative editor using WebGL and WebRTC

Author: Caroline Desprat, Hervé Luga, Jean-Pierre Jessel, Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Web standards, Collaboration application, Computer science, 0211 other engineering and technologies, 02 engineering and technology, computer.software_genre, WebRTC, 3D rendering, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], World Wide Web, Client–server model, Traitement des images, Interactivity, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, 021105 building & construction, 0202 electrical engineering, electronic engineering, information engineering, WebGL, Traitement du signal et de l'image, H- INFORMATIQUE, Protocol (object-oriented programming), Synthèse d'image et réalité virtuelle, Server-side, P2P, Multimedia, business.industry, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], 020207 software engineering, Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], Models of communication, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], business, computer
Abstract: National audience; In 3D collaborative environments, users needs interactivity and real-time updates. With web-based applications, such requirement implies that conventional client-server -alone- is no longer enough. To overcome this unmet need, we propose a hybrid client server peer-to-peer (P2P) communication model based on pluginless web standards enabling users to design collaboratively 3D scenes. The client part includes a WebGL editor to visualize and edit 3D scenes while the server side provides data and ensure persistence. Using the WebRTC protocol, a P2P mesh is generated to transmit directly the updates through a scenes working group. The feasibility of our approach is demonstrated with a web-based prototype submitted to a qualitative evaluation highlighting the usage of WebRTC for direct 3D data transmission with low latency and high throughput, and WebGL for 3D rendering.
Published: 2015

27. Using Relax Operators into an MDE Security Requirement Elicitation Process for Systems of Systems

Author: Laurent Gallon, Jean-Michel Bruel, Manuel Munier, Nicolas Belloir, Manzoor Ahmad, Vanea Chiprianov, Munier, Manuel, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Pau et des Pays de l'Adour - UPPA (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Laboratoire Informatique de l'Université de Pau et des Pays de l'Adour (LIUPPA), Université de Pau et des Pays de l'Adour (UPPA), Modèles, Architectures, Composants, Agilité et prOcessus (IRIT-MACAO), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), and Université Fédérale Toulouse Midi-Pyrénées
Subjects: systems of systems, D21 [Software Engineering]: System modeling languages- Software development methods, MDE, Engineering, Requirement engineering, Process (engineering), [INFO.INFO-SE] Computer Science [cs]/Software Engineering [cs.SE], Complex system, [INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE], Requirements elicitation, Interface homme-machine, [INFO.INFO-CR]Computer Science [cs]/Cryptography and Security [cs.CR], Architectures Matérielles, Génie logiciel, Maritime safety, Invariant (computer science), Requirement Engineering, [INFO.INFO-CR] Computer Science [cs]/Cryptography and Security [cs.CR], computer.programming_language, System of systems, Requirements engineering, business.industry, Systems of systems, Requirements anal- ysis, Modélisation et simulation, Systèmes embarqués, Software and its engineering [Software notations and tools]: System description languages-System mod- eling languages, Cryptographie et sécurité, Security, Systems engineering, Security and privacy [Software and ap- plication security]: [Software security engineering] Keywords Systems of Systems, Model-driven architecture, business, Software engineering, computer
Abstract: International audience; Systems of systems (SoS) are large-scale systems composed of complex systems with difficult to elicit and model emergent properties. One of the most significant challenges in the engineering of such systems is how to elicit their non-functional requirements such as security. In this proposal paper we introduce a Model Driven Engineering (MDE) security requirement process for SoS. It is based on the Relax language to define invariant and relaxed security requirements. This enables taking into account security concerns early in the requirements phase of the SoS. We illustrate our process on a maritime safety and security case study.
Published: 2014

28. Toward organogenesis of artificial creatures

Author: Yves Duthen, Jean Disset, Sylvain Cussat-Blanc, Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Computer science, Process (engineering), Organogenesis, Gene regulatory network, Morphogenesis, 0102 computer and information sciences, 02 engineering and technology, 01 natural sciences, Gene regulatory networks, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Traitement des images, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Specialization (functional), 0202 electrical engineering, electronic engineering, information engineering, Traitement du signal et de l'image, Synthèse d'image et réalité virtuelle, Abstraction (linguistics), business.industry, Mechanism (biology), [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], Multicellular organism, 010201 computation theory & mathematics, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], 020201 artificial intelligence & image processing, Dynamical simulation, Artificial intelligence, business
Abstract: International audience; This paper presents a new model for the development of artificial creatures from a single cell. The model aims at providing a more biologically plausible abstraction of the morphogenesis and the specialization process, which the organogenesis follows. It is built upon three main elements: a cellular physics simulation, a simplified cell cycle using an evolved artificial gene regulatory network and a cell specialization mechanism quantifying the ability to perform different functions. As a proof-of-concept, we present a first experiment where the morphology of a multicellular organism is guided by cell weaknesses and efficiency at performing different functions under environmental stress.
Published: 2014

29. Windmill farm pattern optimization using evolutionary algorithms

Author: Nicolas Durand, Charlie Vanaret, Jean-Marc Alliot, ENAC - Laboratoire de Mathématiques Appliquées, Informatique et Automatique pour l'Aérien (MAIAA), Ecole Nationale de l'Aviation Civile (ENAC), Algorithmes Parallèles et Optimisation (IRIT-APO), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique - CNRS (FRANCE), Ecole Nationale de l'Aviation Civile - ENAC (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), ENAC - Laboratoire de Mathématiques Appliquées, Informatique et Automatique pour l'Aérien ( MAIAA ), Ecole Nationale de l'Aviation Civile ( ENAC ), Institut de recherche en informatique de Toulouse ( IRIT ), Institut National Polytechnique [Toulouse] ( INP ) -Université Toulouse 1 Capitole ( UT1 ) -Université Toulouse 2 ( UT2 ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: [ MATH.MATH-OC ] Mathematics [math]/Optimization and Control [math.OC], Optimization, Mathematical optimization, Computer science, 020209 energy, wind farm, 0211 other engineering and technologies, Evolutionary algorithm, ComputerApplications_COMPUTERSINOTHERSYSTEMS, 02 engineering and technology, Turbine, 0202 electrical engineering, electronic engineering, information engineering, Wind Energy, evolutionary algorithms, Simulation, 021103 operations research, Wind power, business.industry, black box optimization, Grid, Calcul parallèle, distribué et partagé, Wind Farm Layout, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], business, Energy (signal processing), Windmill
Abstract: http://www.sigevo.org/gecco-2014/; International audience; When designing a wind farm layout, we can reduce the number of variables by optimizing a pattern instead of considering the position of each turbine. In this paper we show that when reducing the problem to only two variables defining a grid, we can gain up to 3% of energy output on simple examples of wind farms dealing with many turbines (up to 1000) while dramatically reducing computation time. To achieve these results, we compared both a genetic algorithm and a differential evolution algorithm to previous results from the literature. These preliminary results should be extended to examples involving non-rectangular farm layouts and wind distributions that may require pattern deformation variables in order to increase solution diversity.
Published: 2014

30. Be your own cameraman

Author: Vamsidhar Reddy Gaddam, Pål Halvorsen, Carsten Griwodz, Ragnar Langseth, Vincent Charvillat, Dag Johansen, Pierre Gurdjos, Håkon Kvale Stensland, University of Oslo (UiO), Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique (Toulouse) (Toulouse INP), University of Tromsø (UiT), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Universitetet i Tromsø – Norges arktiske universitet - UiT (NORWAY), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: Zoom, Panorama, Panning, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Stadium, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Traitement des images, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Demonstration, Computer graphics (images), Traitement du signal et de l'image, Computer vision, Panning (camera), Synthèse d'image et réalité virtuelle, ComputingMethodologies_COMPUTERGRAPHICS, business.industry, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Vision par ordinateur et reconnaissance de formes, Intelligence artificielle, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], Panorama video, Artificial intelligence, business, Real-time
Abstract: International audience; High-resolution panoramic video with a wide eld-of-view is popular in many contexts. However, in many examples, like surveillance and sports, it is often desirable to zoom and pan into the generated video. A challenge in this respect is real-time support, but in this demo, we present an end-to- end real-time panorama system with interactive zoom and panning. Our system installed at Alfheim stadium, a Nor- wegian premier league soccer team, generates a cylindrical panorama from ve 2K cameras live where the perspective is corrected in real-time when presented to the client. This gives a better and more natural zoom compared to existing systems using perspective panoramas and zoom operations using plain crop. Our experimental results indicate that vir- tual views can be generated far below the frame-rate thresh- old, i.e., on a GPU, the processing requirement per frame is about 10 milliseconds. The proposed demo lets participants interactively zoom and pan into stored panorama videos generated at Alfheim stadium and from a live 2-camera array on-site.
Published: 2014

31. QoC-aware context data distribution in the Internet of Things

Author: Sophie Chabridon, Atif Manzoor, Denis Conan, Léon Lim, Pierrick Marie, Thierry Desprats, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut Mines-Télécom (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Service IntEgration and netwoRk Administration (IRIT-SIERA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Département Informatique (INF), Institut Mines-Télécom [Paris] (IMT)-Télécom SudParis (TSP), Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux (SAMOVAR), Centre National de la Recherche Scientifique (CNRS), and Université Toulouse III - Paul Sabatier (UT3)
Subjects: IoT, Quality of Context, Computer science, media_common.quotation_subject, Internet of Things, Système d'exploitation, Distribution (economics), Réseaux et télécommunications, Context (language use), 02 engineering and technology, computer.software_genre, World Wide Web, [INFO.INFO-IU]Computer Science [cs]/Ubiquitous Computing, Order (exchange), Architectures Matérielles, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, Quality (business), Set (psychology), Dissemination, media_common, Middleware, business.industry, Distributed Event-Based Systems, 020206 networking & telecommunications, Systèmes embarqués, Metadata, Middleware (distributed applications), business, computer
Abstract: International audience; The Internet of Things (IoT) is a very dynamic and heterogeneous environment that generates plethora of sensor data, accessible to develop new smart pervasive applications. However, the substantial amount of effort required to collect and disseminate context data with sufficient quality prevents the context consumers to take advantage of the IoT to its full potential. Consequently, novel research efforts are required to design middleware solutions able to deliver relevant context data to consumer applications while hiding the complexity of data distribution in heterogeneous and large-scale environments. This paper presents the INCOME framework that enables context producers to express the level of Quality of Context (QoC) they are able to provide and context consumers to set thresholds on the QoC they expect in order to determine how to distribute context data. Our experiments show that context data can be annotated with QoC metadata and distributed from producers to consumers with a reasonable additional cost even on resource-constrained devices such as Raspberry Pi
Published: 2014

32. SIG

Author: Shaun K. Kane, Anke Brock, Tiago Guerreiro, Slim Kammoun, Christophe Jouffrais, Hugo Nicolau, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Universidade Técnica de Lisboa - UTL (PORTUGAL), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of Maryland (USA), Universidade de Lisboa - ULisboa (PORTUGAL), Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa (INESC-ID), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST)-Instituto de Engenharia de Sistemas e Computadores (INESC), University of Lisbon, University of Maryland [Baltimore County] (UMBC), University of Maryland System, Centre National de la Recherche Scientifique (CNRS), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Universidade de Lisboa (ULISBOA), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), LaSIGE [Lisboa], Universidade de Lisboa (ULISBOA)-Faculdade de Ciências, Department of Computer Science [College Park], University of Maryland [College Park], University of Maryland System-University of Maryland System, and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Subjects: gestural interaction, Eyes-free interaction, Visual interaction, Visually impaired, ACM: H.: Information Systems/H.5: INFORMATION INTERFACES AND PRESENTATION (e.g., HCI)/H.5.2: User Interfaces, Visual impairment, Internet privacy, visual impairment, Ordinateur et société, 02 engineering and technology, Interface homme-machine, Non -visual interaction, situational impairment, Session (web analytics), thermal, World Wide Web, [INFO.INFO-MC]Computer Science [cs]/Mobile Computing, [INFO.INFO-CY]Computer Science [cs]/Computers and Society [cs.CY], Application areas, Thermal, Brainstorming, audio, Non-visual interaction, 0202 electrical engineering, electronic engineering, information engineering, medicine, 0501 psychology and cognitive sciences, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], 050107 human factors, business.industry, Gestural interaction, 05 social sciences, Informatique mobile, Situational impairment, Technologies Émergeantes, 020207 software engineering, ACM: K.: Computing Milieux/K.4: COMPUTERS AND SOCIETY/K.4.2: Social Issues, Accessibility, accessibility, Audio, [INFO.INFO-ET]Computer Science [cs]/Emerging Technologies [cs.ET], haptic, medicine.symptom, User interface, Psychology, business, eyes-free interaction, Haptic
Abstract: International audience; In recent years there has been a surge in the development of non-visual interaction techniques targeting two application areas: making content accessible to visually impaired people, and supporting minimal attention user interfaces for situationally impaired users. This SIG aims to bring together the community of researchers working around non-visual interaction techniques for people of all abilities. It will unite members of this burgeoning community in a lively discussion and brainstorming session. Attendees will work to identify and report current and future research challenges as well as new research avenues.
Published: 2013

33. Leveraging the Progress of Women in the HCI Field to Address the Diversity Chasm

Author: Shikoh Gitau, Anicia Peters, Andrea Peer, Dianne Murray, Allison Druin, Janaki Kumar, Susan M. Dray, Anke Brock, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), University of Maryland (USA), Dray & Associates (USA), Google (KENYA), Iowa State University - ISU (USA), SAP (USA), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Dray & Associates, Inc., Oakland, CA, USA, Iowa State University (ISU), Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, University of Maryland [College Park], University of Maryland System, Google Inc, Research at Google, SAP Labs France, and Interacting with Computers
Subjects: Knowledge management, media_common.quotation_subject, mentoring, 02 engineering and technology, diversity, Equality, 5. Gender equality, Video interview, gender, 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, Conversation, Women, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], equality, 050107 human factors, media_common, Minorities, Etudes sur le genre, Diversity, ComputingMilieux_THECOMPUTINGPROFESSION, business.industry, 4. Education, Field (Bourdieu), 05 social sciences, Mentoring, Gender, 020207 software engineering, Public relations, minorities, ComputingMilieux_GENERAL, ACM: H.: Information Systems/H.5: INFORMATION INTERFACES AND PRESENTATION (e.g., HCI), Gender gap, business, Career development, Diversity (politics)
Abstract: International audience; Worldwide there is a gender gap in technology with only a small part of all computer science related positions being held by women. Among different initiatives to encourage women to join STEM fields, we started a video interview initiative last year at CHI to encourage more women to enter and remain in the field of HCI as well as strengthening existing women's voices. In addition to strengthening women's progress, many interviewees also identified a diversity chasm within the HCI field that needs to be addressed. This panel aims at continuing and deepening the conversation that was started at CHI 2011 addressing the experience of women in the HCI field in both industry and academia and extending the conversation to include diversity. It will serve as a platform to discuss important issues such as mentoring, leadership, and career development and for creating networks for including and encouraging diversity in HCI.
Published: 2013

34. An implementation of framework of business intelligence for agent-based simulation

Author: Hiep Xuan Huynh, Benoit Gaudou, Thai Minh Truong, Christophe Sibertin-Blanc, Minh Ngoc Le, Alexis Drogoul, Frédéric Amblard, Viet Xuan Truong, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut de Recherche pour le Développement - IRD (FRANCE), Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Can Tho University - CTU ( VIETNAM), Ho Chi Minh City University of Science - HCMC (VIETNAM), Systèmes Multi-Agents Coopératifs (IRIT-SMAC), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Unité de modélisation mathématique et informatique des systèmes complexes [Bondy] (UMMISCO), Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université de Yaoundé I-Institut de la francophonie pour l'informatique-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cadi Ayyad [Marrakech] (UCA), Can Tho University [Vietnam] (CTU), and Ho Chi Minh City University of Technology (HCMUT)
Subjects: Agent-based model, Decision support system, business.industry, Computer science, Scale (chemistry), Distributed computing, Intelligence artificielle, Multi-agent simulation, computer.software_genre, Modélisation et simulation, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Data warehouse, Model validation, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Logical framework, BI solution, Brown plant hopper, Environmental modeling, Business intelligence, Data mining, business, computer
Abstract: National audience; Integrated environmental modeling approaches, especially agent-based modeling ones, are increasingly used in large-scale decision support systems. A major consequence of this trend is the manipulation and generation of a huge amount of data in simulations, which require to be efficiently managed. In this paper, we present a Combination Framework of Business intelligence solution and Multi-agent platform (CFBM) and its implementation on the GAMA platform. CFBM is a logical framework dedicated to the management of the input and output data of simulations, as well as the corresponding empirical datasets in an integrated way and the analysis on integrated data, which we propose as a coupling of two major methodologies: Multi-Agent Simulation (MAS) on one hand and Business Intelligence (BI) solution on the other. An integrated model of a surveillance network and Brown Plant Hopper (BPH) invasion is presented. This model is used throughout the paper as a case study of CFBM regarding to the database accesses, the integration of internal and external processing, and the model validation tasks. We show how the proposed combination framework can be an appropriate choice for all decision-support systems with a huge data, hence the modelers can be also encouraged to develop the big model in a large scale.
Published: 2013

35. System-level co-simulation of integrated avionics using polychrony

Author: Paul Le Guernic, Yann Glouche, Odile Laurent, Thierry Gautier, Jean-Pierre Talpin, Huafeng Yu, Andres Toom, Yue Ma, Loïc Besnard, Synchronous programming for the trusted component-based engineering of embedded systems and mission-critical systems (ESPRESSO), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria), Assistance à la Certification d’Applications DIstribuées et Embarquées (IRIT-ACADIE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Airbus [France], Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Inria Rennes – Bretagne Atlantique, Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), and Université de Toulouse (UT)
Subjects: Computer science, business.industry, Model transformation, Distributed computing, Globally asynchronous locally synchronous, [INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE], 02 engineering and technology, Avionics, Co-simulation, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, 020202 computer hardware & architecture, Value change dump, Embedded system, Component-based software engineering, 0202 electrical engineering, electronic engineering, information engineering, Systems architecture, Systems design, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, State diagram, business, computer, computer.programming_language
Abstract: International audience; The design of embedded systems from multiple views and heterogeneous models is ubiquitous in avionics as, in partic- ular, different high-level modeling standards are adopted for specifying the structure, hardware and software components of a system. The system-level simulation of such composite models is necessary but difficult task, allowing to validate global design choices as early as possible in the system de- sign ﬂow. This paper presents an approach to the issue of composing, integrating and simulating heterogeneous mod- els in a system co-design ﬂow. First, the functional behavior of an application is modeled with synchronous data-ﬂow and statechart diagrams using Simulink/Gene-Auto. The system architecture is modeled in the AADL standard. These high- level, synchronous and asynchronous, models are then trans- lated into a common model, based on a polychronous model of computation, allowing for a Globally Asynchronous Lo- cally Synchronous (GALS) interpretation of the composed models. This translation is implemented as an automatic model transformation within Polychrony, a toolkit for em- bedded systems design. Simulation, including proﬁling and value change dump demonstration, has been carried out based on the common model within Polychrony. An avionic case study, consisting of a simpliﬁed doors and slides control system, is presented to illustrate our approach.
Published: 2011

36. Rethinking iBGP routing

Author: Steve Uhlig, Mickael Meulle, Cristel Pelsser, Philippe Owezarski, Iuniana Oprescu, Olaf Maennel, Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Orange Labs R&D [Rennes], France Télécom, Deutche Telekom Lab, Deutche Telekom, IIJ Innovation Institute, IIJ Japan, Deutche Telekom labs, LAAS-OLC, Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, and Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1)
Subjects: Routing protocol, Virtual routing and forwarding, Computer Networks and Communications, Computer science, computer.internet_protocol, Distributed computing, Routing table, Enhanced Interior Gateway Routing Protocol, 02 engineering and technology, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Convergence (routing), 0202 electrical engineering, electronic engineering, information engineering, Routing control plane, Backbone network, Static routing, business.industry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Path vector protocol, Autonomous system (Internet), 020206 networking & telecommunications, Routing domain, Border Gateway Protocol, Default-free zone, 020201 artificial intelligence & image processing, business, computer, Software, Computer network
Abstract: The Internet is organized as a collection of administrative domains, known as Autonomous Systems (ASes). These ASes interact through the Border Gateway Protocol (BGP) that allows them to share reachability information. Adjacent routers in distinct ASes use external BGP (eBGP), whereas in a given AS routes are propagated over internal BGP (iBGP) sessions between any pair of routers. In large ASes where a logical full-mesh is not possible, confederations or route reflectors (RRs) are used. However, these somewhat scalable alternatives have introduced their own set of unpredictable effects (persistent routing oscillations and forwarding loops causing an increase of the convergence time) addressed in the literature [1]. The solution we propose to these issues consists of a structured routing overlay holding a comprehensive view of the routes. We describe the design of a distributed entity that performs BGP route pre-computation for its clients inside a large backbone network and propagates the paths to the routers. Compared to the current iBGP routing, the advantage of the overlay approach is the separation between the responsibility of the control plane (route storage and best path computation) and the forwarding of the packets. One of the major improvements we bring is the divided routing table tackling the scalability concerns and allowing for parallel computation of paths.
Published: 2010

37. Analysis of opportunistic localization algorithms based on the linear matrix inequality method

Author: Andrea Bardella, Francesco Zorzi, Andrea Zanella, GuoDong Kang, Tanguy Pérennou, Dipartimento di Ingegneria de l'Informazione [Padova] (DEI), Universita degli Studi di Padova, Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Télécommunications Spatiales et Aéronautiques - Telecommunications for Space ant Aeronautics (TéSA), Laboratoire de recherche coopératif dans les télécommunications spatiales et aéronautiques (TESA), NoE FP7 NEWCOM++, ANR-07-TCOM-0006,FIL,Fusion d'Information pour la Localisation(2007), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), Northwestern Polytechnical University (CHINA), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Laboratoire de recherche en télécommunications spatiales et aéronautiques - TéSA (FRANCE), Università degli Studi di Padova (ITALY), Università degli Studi di Padova = University of Padua (Unipd), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université de Toulouse (UT)
Subjects: Computer–Communication Networks, Engineering, Design, Performance, [SHS.INFO]Humanities and Social Sciences/Library and information sciences, Distributed computing, Réseaux et télécommunications, 02 engineering and technology, C.2.2, 0202 electrical engineering, electronic engineering, information engineering, LMI, Randomness, Wireless Networks, Wireless network, business.industry, Linear matrix inequality, 020206 networking & telecommunications, Network Protocols, Variety (cybernetics), Range (mathematics), Localization, Opportunistic, 020201 artificial intelligence & image processing, Computer – Communication networks – Network protocols – Performance – Design – Localization – LMI – Wireless networks – Opportunistic, Focus (optics), business, Communications protocol, Mobile device, Algorithm
Abstract: Accepté pour publication comme poster à MobiOpp 2010; International audience; With the increasing spread of use of mobile devices there is a growing demand for location-aware services in a wide variety of contexts. Yet providing an accurate location estimation is difficult when considering cheap off-the-shelf mobile devices, particularly in indoors or urban environments. In this paper we define and compare different localization algorithms based on an opportunistic paradigm. In particular, we focus on range-free and range-based localization techniques that are based on the solution of a Linear Matrix Inequalities (LMI) problem. The performance achievable with this approach is analyzed in different scenarios, through extensive simulation campaign. Results show that LMI-based schemes, especially the range–based one, are potentially capable of yielding very accurate localization even after a limited number of opportunistic exchange, though performance is rather sensitive to the accuracy of the other nodes' self-localization and to the randomness of the radio channel.
Published: 2010

38. A demonstration of MobiTree

Author: Sebastien Mondet, Andra Doran, Géraldine Morin, Frédéric Boudon, Romulus Grigoras, Wei Tsang Ooi, Université Toulouse - Jean Jaurès (UT2J), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, National University of Singapore (NUS), Modeling plant morphogenesis at different scales, from genes to phenotype (VIRTUAL PLANTS), Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Développement et amélioration des plantes (UMR DAP), Centre National de la Recherche Scientifique (CNRS)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Visual Objects from Reality To Expression (IRIT-VORTEX), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de la Recherche Agronomique (INRA)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Université de Toulouse (UT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 0106 biological sciences, Speedup, Computer science, 02 engineering and technology, Arbre, computer.software_genre, F50 - Anatomie et morphologie des plantes, 010603 evolutionary biology, 01 natural sciences, Rendering (computer graphics), 0202 electrical engineering, electronic engineering, information engineering, Multimedia, U10 - Informatique, mathématiques et statistiques, business.industry, 020207 software engineering, F70 - Taxonomie végétale et phytogéographie, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, C30 - Documentation et information, Mobile phone, Système d'information, business, Mobile device, computer, Modèle mathématique, Computer network
Abstract: International audience; We demonstrate MobiTree, a system we built that allows progressive streaming and rendering of 3D tree models on a mobile phone. MobiTree enables user to retrieve not only typical media describing a species (such as text and image), but also a 3D model that yields detail information about the structure of the branches and the foliage. MobiTree adopts our previous proposed progressive representation to speed up display of trees at the mobile client, trading off latency and quality. Progressivity also allows MobiTree to ﬂexibly adopt the level of details to the capability of the mobile devices.
Published: 2009

39. Designing an assistive device for the blind based on object localization and augmented auditory reality

Author: Christophe Jouffrais, Brian G. Katz, Florian Dramas, Simon J. Thorpe, Bernard Oriola, Interacting Humans with Computing Systems (IRIT-IHCS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur (LIMSI), Université Paris Saclay (COmUE)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université - UFR d'Ingénierie (UFR 919), Sorbonne Université (SU)-Sorbonne Université (SU)-Université Paris-Saclay-Université Paris-Sud - Paris 11 (UP11), Centre de recherche cerveau et cognition (CERCO), Institut des sciences du cerveau de Toulouse. (ISCT), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Computer science, Visually impaired, business.industry, media_common.quotation_subject, 05 social sciences, 020207 software engineering, Image processing, 02 engineering and technology, Object (computer science), Object detection, Visual patterns, 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, New device, Computer vision, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Artificial intelligence, Assistive device, Function (engineering), business, ComputingMilieux_MISCELLANEOUS, 050107 human factors, media_common
Abstract: There are many electronic devices for the visually impaired but few actually get used on a daily basis. This is due in part to the fact that many devices often fail to address the real needs of the users. In this study, we begin with a review of the existing literature followed by a survey of 54 blind people which suggests that one particular function could be particularly useful in a new device, namely, the ability to localize objects. We have tested the possibility of using a sound rendering system to indicate a particular spatial location, and propose to couple this with a biologically inspired image processing system that can locate visual patterns that correspond to particular objects and places. We believe that such a system can address one of the major problems faced by the visually handicapped, namely their difficulty in localizing specific objects.
Published: 2008

40. SIMBA

Author: Cédric Bach, Emmanuel Dubois, Jean-Pierre Jessel, Pascal Salembier, Wafaa Abou Moussa, Christophe Bortolaso, Visual Objects from Reality To Expression (IRIT-VORTEX), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Université Toulouse III - Paul Sabatier (UT3), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Metapages, and Région Midi-Pyrénées et de la société Metapages-Chaosmose dans le cadre du projet Praxis-Environnement.
Subjects: business.industry, Computer science, Process (engineering), media_common.quotation_subject, 05 social sciences, Fidelity, 020207 software engineering, 02 engineering and technology, Incremental evolution, Prototypage par simulation, systèmes interactifs mixtes, Identification (information), développement incrémental, 0202 electrical engineering, electronic engineering, information engineering, [INFO]Computer Science [cs], 0501 psychology and cognitive sciences, Software engineering, business, 050107 human factors, Simulation, media_common
Abstract: International audience; In this paper, we present SIMBA, a prototyping approach dedicated to Mixed Interactive Systems (MIS). This approach supports the use of an existing co-design process of MIS. SIMBA combines a «medium fidelity» prototyping platform based on simulation, and a model-driven development process. Simulation-based prototyping allows for a fast and inexpensive generation of mixed interactive prototypes. A model-driven development process enables such prototypes to be tightly coupled with design choices established in earlier design phases. It also supports an incremental evolution into the final, not simulated, MIS. The prototyping approach that we present is based on the identification of the roles of the different actors involved in a MIS development process and the collaboration between them. An augmented museum application is used throughout this paper to illustrate the proposed prototyping approach.; Cet article présente SIMBA, une démarche de prototypage de Systèmes Interactifs Mixtes (SIM), opérationnalisant un processus de co-conception de SIM. SIMBA combine une plateforme de prototypage « moyenne fidélité » basé sur la simulation, et une méthodologie de développement dirigée par les modèles. Le prototypage par simulation constitue un moyen de génération rapide et peu coûteuse de prototypes de SIM. La méthodologie de développement dirigée par les modèles, ancre ces prototypes dans les étapes de conception antérieures et permet leur évolution incrémentale vers une implémentation finale, non simulée. La démarche s’appuie sur l’identification des rôles des différents acteurs du cycle de développement, ainsi que leur collaboration. Un exemple de musée augmenté illustre la démarche de développement.
Published: 2008

41. An integrated environment for the presentation of consistent SMIL 2.0 documents

Author: Paulo N. M. Sampaio, Jean-Pierre Courtiat, Christophe Lohr, Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université de Toulouse (UT)
Subjects: Java, business.industry, Computer science, Programming language, 020207 software engineering, 02 engineering and technology, computer.file_format, computer.software_genre, Formal methods, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Synchronized Multimedia Integration Language, Automaton, Scheduling (computing), Formal specification, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, 0202 electrical engineering, electronic engineering, information engineering, [INFO]Computer Science [cs], 020201 artificial intelligence & image processing, Architecture, business, computer, ComputingMilieux_MISCELLANEOUS, Interactive media, computer.programming_language
Abstract: The utilization of Interactive Multimedia Documents (IMDs) has been largely addressed in several fields such as education, medicine, etc. since these documents can be distributed and accessed over the World-Wide-Web. In this context, the W3C standard Synchronized Multimedia Integration Language (SMIL) has been proposed for the presentation of IMD's over the Web. However, the flexibility of the temporal model of SMIL 2.0 allows the author to describe temporal synchronization relationships that potentially can not be resolved during the presentation of the document, known as temporal inconsistencies. For this reason, an approach that enables to detect and correct these inconsistencies is needed.This paper presents a formal approach for the verification, scheduling and presentation of consistent SMIL 2.0 documents based on the RT-LOTOS formal description technique. Thus, the consistency analysis of SMIL 2.0 documents is presented and some solutions are proposed in order to deal with potential state space explosion problems. Further on, some contributions are also presented concerning the scheduling and presentation of SMIL 2.0 documents based on a simple scheduling graph, called a Time Labeled Automata (TLA), derived automatically from the document formal specification. Finally, a global Java-based architecture for the implementation of a player of consistent SMIL 2.0 documents is presented.
Published: 2001

42. AliceVision Meshroom

Author: Carsten Griwodz, Fabien Castan, Simone Gasparini, Gregoire De Lillo, Yann Lanthony, Pierre Gurdjos, Lilian Calvet, Benoit Maujean, SimulaNet, University of Oslo (UiO), Real Expression Artificial Life (IRIT-REVA), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Mikros Image (FRANCE)
Subjects: Panorama, business.industry, Computer science, 3D reconstruction, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], 020207 software engineering, 02 engineering and technology, File format, Pipeline (software), Image stitching, Pipeline transport, Software, Photogrammetry, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Computer vision, Artificial intelligence, business
Abstract: This paper introduces the Meshroom software and its underlying 3D computer vision framework AliceVision. This solution provides a photogrammetry pipeline to reconstruct 3D scenes from a set of unordered images. It also features other pipelines for fusing multi-bracketing low dynamic range images into high dynamic range, stitching multiple images into a panorama and estimating the motion of a moving camera. Meshroom's node-graph architecture allows the user to customize the different pipelines to adjust them to their domain specific needs. The user can interactively add other processing nodes to modify a pipeline, export intermediate data to analyze the result of the algorithms and easily compare the outputs given by different sets of parameters. The software package is released in open source and relies on open file formats. These features enable researchers to conveniently run the pipelines, access and visualize the data at each step, thus promoting the sharing and the reproducibility of the results.
Published: 2021

43. DECWA

Author: Franck Ravat, Olivier Teste, Nabil El Malki, Robin Cugny, Systèmes d’Informations Généralisées (IRIT-SIG), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)
Subjects: 0303 health sciences, [INFO.INFO-DB]Computer Science [cs]/Databases [cs.DB], business.industry, Computer science, Probabilistic logic, Probability density function, Pattern recognition, 02 engineering and technology, Measure (mathematics), Clustering, Density-based clustering, 03 medical and health sciences, ComputingMethodologies_PATTERNRECOGNITION, Wasserstein metric, 0202 electrical engineering, electronic engineering, information engineering, Key (cryptography), 020201 artificial intelligence & image processing, Pairwise comparison, Wasserstein distance, Artificial intelligence, business, Cluster analysis, Density based clustering, 030304 developmental biology
Abstract: International audience; Clustering is a data analysis method for extracting knowledge by discovering groups of data called clusters. Among these methods, state-of-the-art density-based clustering methods have proven to be effective for arbitrary-shaped clusters. Despite their encouraging results, they suffer to find low-density clusters, near clusters with similar densities, and high-dimensional data. Our proposals are a new characterization of clusters and a new clustering algorithm based on spatial density and probabilistic approach. First of all, sub-clusters are built using spatial density represented as probability density function (p.d.f) of pairwise distances between points. A method is then proposed to agglomerate similar sub-clusters by using both their density (p.d.f) and their spatial distance. The key idea we propose is to use the Wasserstein metric, a powerful tool to measure the distance between p.d.f of sub-clusters. We show that our approach outperforms other state-of-the-art density-based clustering methods on a wide variety of datasets.
Published: 2020

44. Vibrotactile cues for conveying directional information during blind exploration of digital graphics

Author: Bernard Oriola, Frédéric Rayar, Christophe Jouffrais, Marcos Serrano, Kaixing Zhao, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université de Tours (UT), Centre National de la Recherche Scientifique (CNRS), Image & Pervasive Access Lab (IPAL), and National University of Singapore (NUS)-MATHEMATIQUES, SCIENCES ET TECHNOLOGIES DE L'INFORMATION ET DE LA COMMUNICATION (UJF)-Agency for science, technology and research [Singapore] (A*STAR)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institute for Infocomm Research - I²R [Singapore]
Subjects: digital map, InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI), Computer science, 02 engineering and technology, Motion (physics), Digital media, spatial cognition, Carte numérique, Human–computer interaction, digital graphic, 0202 electrical engineering, electronic engineering, information engineering, 0501 psychology and cognitive sciences, interaction technique, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Graphics, Cognition spatiale, 050107 human factors, business.industry, Interaction non-visuelle, 05 social sciences, blind, 020207 software engineering, Transmission (telecommunications), non-visual interaction, business, Techniques d'interaction, Graphique numérique, nonvoyants
Abstract: National audience; Graphics are useful in many contexts of daily life (education, mobility, etc) and spread widely in digital media. However, accessing to digital graphical information remains a challenging work to people with visual impairments. In this study, we were interested in the transmission of vibrotactile cues allowing users to explore digital graphics more easily and faster. We have designed a vibrotactile matrix fixed on the hand for presenting directional information. Two vibrotactile displays - Spatiotemporal Vibrotactile Pattern (SVP) and Apparent Tactile Motion (ATM) - were compared. A study with sixteen blindfolded participants examined the efficiency and user preferences of proposed interaction techniques and showed that the recognition accuracy with SVP is significantly better. Final study involving six participants with visual impairments confirmed the improvement of digital graphics exploration with vibrotactile directional cues.; Les graphiques sont utiles dans de nombreux contextes de la vie quotidienne et se répandent largement dans les médias numériques. Cependant, l'accès aux informations graphiques numériques reste un défi pour les PDVs. Dans cette étude, nous nous sommes intéressés à la transmission d'indices vibrotactiles permettant à des utilisateurs de parcourir plus rapidement et plus facilement des graphiques numériques. Nous avons conçu une matrice vibrotactile fixée sur la main et permettant de présenter des informations directionnelles. Deux affichages vibrotactiles - SVP et ATM - ont été comparés. Une étude avec seize participants aux yeux bandés a examiné l'efficience et la préférence des utilisateurs avec les techniques proposées. Elle a montré que le taux de reconnaissance avec SVP est significativement meilleur. L'étude finale impliquant six PDVs a confirmé l'amélioration de l'exploration de graphiques numériques grâce aux indices directionnels vibrotactiles.
Published: 2019

45. COLiDeR

Author: Andre-Luc Beylot, Vania Conan, Raphael Naves, Gentian Jakllari, Hicham Khalife, THALES COMMUNICATIONS & SECURITY, THALES, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Institut National Polytechnique (Toulouse) (Toulouse INP)
Subjects: Computer Networks and Communications, Computer science, Throughput, Data_CODINGANDINFORMATIONTHEORY, 02 engineering and technology, Network topology, Scheduling (computing), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], PHY, 0202 electrical engineering, electronic engineering, information engineering, Protocol (object-oriented programming), Ideal (set theory), Wireless network, Network packet, business.industry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Testbed, Perspective (graphical), 020206 networking & telecommunications, Path (graph theory), Key (cryptography), Lightweight protocol, 020201 artificial intelligence & image processing, business, COLiDeR, Decoding methods, Communication channel, Computer network
Abstract: International audience; In this work, we present COLiDeR , the first PHY/MAC cross-layer protocol for practical twopath relaying using off-the-shelf half-duplex radios. It relies on three main contributions. First, based on an off-line performance comparison, COLiDeR selects the best interference management technique for a radio to handle two overlapping signals depending on the measured channel conditions. Then, considering the real decoding capacities of the nodes, COLiDeR introduces a dynamic relaying strategy with the objective of achieving high throughput while reducing decoding failures. This includes a lightweight protocol for the source to evaluate the channel state, a state-machine modeled approach driven by the source for switching between the defined scheduling schemes and an optional power adaptation mechanism for reducing the packet losses. Finally, COLiDeR comes with an adapted scheduling mechanism that aims to integrate two path-relaying in multi-hop wireless networks. Experiments on a 4-USRP testbed show that COLiDeR delivers between 80-95% of the relaying performance of an ideal full-duplex radio while incurring negligible decoding failures. Just as important, large-scale simulations show that COLiDeR improves network throughput in multihop topologies by over 20% compared to traditional interference-free transmissions.
Published: 2019

46. Impact of source scheduling on end-to-end latencies in a QoS-aware avionics network

Author: Christian Fraboul, Jean-Luc Scharbarg, Katia Jaffrès-Runser, Oana Hotescu, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Institut National Polytechnique (Toulouse) (Toulouse INP)
Subjects: Schedule, Network architecture, business.industry, Computer science, Quality of service, Avionics Full-Duplex Switched Ethernet, End-to-end delay, 020207 software engineering, 02 engineering and technology, Avionics, Scheduling (computing), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], End-to-end principle, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, business, Jitter, Computer network
Abstract: International audience; This paper investigates the impact of a novel source scheduling framework tailored to introduce Quality of Service (QoS) in legacy embedded avionics networks. The protocol of interest is the Avionics Full Duplex Switched Ethernet (AFDX) deployed in modern civilian aircrafts to handle the transmission of time-critical avionics flows. Our aim is to introduce soft real-time flows on such networks in order to carry video flows. Multiplexing avionics real-time flows with video flows is tackled by introducing table scheduling at the end systems (i.e. transmitters). We propose herein a solution that preserves the worst-case end-to-end delay of avionics flows, and show how their scheduling in the table impacts the jitter of the video flows. Thorough simulations on a A350-like network architecture underline that table schedules mostly impact the jitter of video flows at the source and have limited impact on the jitter introduced by the network transfer.
Published: 2019

47. A DSL for requirements in the context of a seamless approach

Author: Florian Galinier, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), and Université Toulouse 1 Capitole - UT1 (FRANCE)
Subjects: Computer science, Formal semantics (linguistics), Context (language use), 0102 computer and information sciences, 02 engineering and technology, Interface homme-machine, 01 natural sciences, Domain (software engineering), DSL, Consistency (database systems), Architectures Matérielles, Seamless development, 0202 electrical engineering, electronic engineering, information engineering, Code (cryptography), Génie logiciel, Requirements engineering, business.industry, Verification and validation, Traceability, 020207 software engineering, Modélisation et simulation, Systèmes embarqués, Digital subscriber line, 010201 computation theory & mathematics, Cryptographie et sécurité, Software engineering, business, Natural language
Abstract: Reducing the lack of consistency between requirements and the system that should satisfy these requirements is one of the major issue in Requirement Engineering (RE). The objective of my thesis work is to propose a seamless approach, allowing users to express requirements, specifications and the system itself in a unique language. The purpose of formal approaches is to reduce inconsistency. However, most developers are not familiar with these approaches, and they are not often used outside the critical systems domain. Since we want that non-experts can also use our approach to validate systems in the early stage of their development, we propose a Domain Specific Language (DSL) that is: (i) close to natural language, and (ii) based on a formal semantics. Using Model-Driven Engineering (MDE), this language bridges the gap not only between the several stakeholders that can be involved in a project, considering their different backgrounds, but also between the requirements and the code.
Published: 2018

48. Query Performance Prediction and Effectiveness Evaluation Without Relevance Judgments

Author: Josiane Mothe, Stefano Mizzaro, Zia Ullah, Kevin Roitero, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Università degli studi di Udine - UNIUD (ITALY), and Ecole supérieure du professorat et de l'éducation - ESPE (Toulouse, France)
Subjects: Focus (computing), Aap, AAP, Query difficulty prediction, Computer science, business.industry, Test collections, Recherche d'information, 02 engineering and technology, Machine learning, computer.software_genre, Computer Graphics and Computer-Aided Design, Test Collections, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, Performance prediction, TREC, Software, Information Systems, 020201 artificial intelligence & image processing, Relevance (information retrieval), Artificial intelligence, business, computer
Abstract: Some methods have been developed for automatic effectiveness evaluation without relevance judgments. We propose to use those methods, and their combination based on a machine learning approach, for query performance prediction. Moreover, since predicting average precision as it is usually done in query performance prediction literature is sensitive to the reference system that is chosen, we focus on predicting the average of average precision values over several systems. Results of an extensive experimental evaluation on ten TREC collections show that our proposed methods outperform state-of-the-art query performance predictors.
Published: 2018

49. Welcome to zombieland

Author: Daniel Hagimont, Alain Tchana, Vlad Nitu, Boris Teabe, Canturk Isci, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and IBM (USA)
Subjects: Memory disaggregation, Computer science, business.industry, Distributed computing, Système d'exploitation, Réseaux et télécommunications, 020206 networking & telecommunications, Cloud computing, 02 engineering and technology, Systèmes embarqués, Power (physics), Rack, Energy efficiency, Resource (project management), Architectures Matérielles, Virtualization, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, Advanced Configuration and Power Interface, business, Energy (signal processing), System software, Efficient energy use
Abstract: In this paper, we propose an effortless way for disaggregating the CPU-memory couple, two of the most important resources in cloud computing. Instead of redesigning each resource board, the disaggregation is done at the power supply domain level. In other words, CPU and memory still share the same board, but their power supply domains are separated. Besides this disaggregation, we make the two following contributions: (1) the prototyping of a new ACPI sleep state (called zombie and noted Sz) which allows to suspend a server (thus save energy) while making its memory remotely accessible; and (2) the prototyping of a rack-level system software which allows the transparent utilization of the entire rack resources (avoiding resource waste). We experimentally evaluate the effectiveness of our solution and show that it can improve the energy efficiency of state-of-the-art consolidation techniques by up to 86%, with minimal additional complexity.
Published: 2018

50. Automation

Author: Camille Fayollas, Philippe Palanque, Célia Martinie, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Continental Digital Services France - CDSF (FRANCE)
Subjects: Computer science, Interaction design, 02 engineering and technology, Software creation and management, Interface homme-machine, Task (project management), Human–computer interaction, Automation Design and Assessment, Architectures Matérielles, Software and its engineering, 0202 electrical engineering, electronic engineering, information engineering, Génie logiciel, 0501 psychology and cognitive sciences, Tasks description and modeling, 050107 human factors, Designing software, business.industry, Computer-automated design, Software implementation planning, 05 social sciences, Usability, 020207 software engineering, Modélisation et simulation, Automation, Human-centered computing, Systèmes embarqués, Software development process management, Usability and Reliability of partly-autonomous systems, Task analysis, Cryptographie et sécurité, Software design techniques, business, User Interaction Design
Abstract: This course takes a practical approach to introduce the principles, methods and tools in task modeling and how this technique can support identification of automation opportunities, dangers and limitations. A technical interactive hands-on exercise of how to "do it right", such as: How to go from task analysis to task models? How to identify tasks that are good candidate for automation (through analysis and simulation)? How to identify reliability and usability dangers added by automation? How to design usable automation at system, application and interaction levels? And more...
Published: 2018

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