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1. Mitigating Collisions in Sidelink NR V2X: A Study on Cooperative Resource Allocation

Author

Nikooroo, Mohammadsaleh, Estrada-Jimenez, Juan, Machalek, Aurel, Harri, Jerome, Engel, Thomas, and Turcanu, Ion

Subjects
Computer Science - Networking and Internet Architecture, Electrical Engineering and Systems Science - Systems and Control
Abstract

New Radio (NR) Vehicle-to-Everything (V2X) Sidelink (SL), an integral part of the 5G NR standard, is expected to revolutionize the automotive and rail industries by enabling direct and low-latency exchange of critical information between traffic participants independently of cellular networks. However, this advancement depends primarily on efficient SL resource allocation. Mode 2(a) is a well-known method for this purpose, where each node autonomously selects resources. However, this method is prone to packet collisions due to the hidden-node problem. In this paper, we propose a cooperative scheduling method that could potentially address this issue. We describe an extension of Mode 2(a) that allows nodes to share resource allocation information at two hops. Initial simulation results show a promising improvement over Mode 2(a)., Comment: arXiv admin note: This version has been removed by arXiv administrators as the submitter did not have the right to agree to the license at the time of submission

Published
2024

3. A Survey on Machine Learning-based Misbehavior Detection Systems for 5G and Beyond Vehicular Networks

Author

Boualouache, Abdelwahab and Engel, Thomas

Subjects
Computer Science - Cryptography and Security, Computer Science - Machine Learning, Computer Science - Networking and Internet Architecture
Abstract

Significant progress has been made towards deploying Vehicle-to-Everything (V2X) technology. Integrating V2X with 5G has enabled ultra-low latency and high-reliability V2X communications. However, while communication performance has enhanced, security and privacy issues have increased. Attacks have become more aggressive, and attackers have become more strategic. Public Key Infrastructure proposed by standardization bodies cannot solely defend against these attacks. Thus, in complementary of that, sophisticated systems should be designed to detect such attacks and attackers. Machine Learning (ML) has recently emerged as a key enabler to secure our future roads. Many V2X Misbehavior Detection Systems (MDSs) have adopted this paradigm. Yet, analyzing these systems is a research gap, and developing effective ML-based MDSs is still an open issue. To this end, this paper present a comprehensive survey and classification of ML-based MDSs. We analyze and discuss them from both security and ML perspectives. Then, we give some learned lessons and recommendations helping in developing, validating, and deploying ML-based MDSs. Finally, we highlight open research and standardization issues with some future directions.

Published
2022

4. k-Pareto Optimality-Based Sorting with Maximization of Choice

Author

Ruppert, Jean, Aleksandrova, Marharyta, and Engel, Thomas

Subjects
Mathematics - Optimization and Control
Abstract

Topological sorting is an important technique in numerous practical applications, such as information retrieval, recommender systems, optimization, etc. In this paper, we introduce a problem of generalized topological sorting with maximization of choice, that is, of choosing a subset of items of a predefined size that contains the maximum number of equally preferable options (items) with respect to a dominance relation. We formulate this problem in a very abstract form and prove that sorting by k-Pareto optimality yields a valid solution. Next, we show that the proposed theory can be useful in practice. We apply it during the selection step of genetic optimization and demonstrate that the resulting algorithm outperforms existing state-of-the-art approaches such as NSGA-II and NSGA-III. We also demonstrate that the provided general formulation allows discovering interesting relationships and applying the developed theory to different applications.

Published
2022

6. Causal Identification with Additive Noise Models: Quantifying the Effect of Noise

Author

Kap, Benjamin, Aleksandrova, Marharyta, and Engel, Thomas

Subjects
Statistics - Machine Learning, Computer Science - Machine Learning
Abstract

In recent years, a lot of research has been conducted within the area of causal inference and causal learning. Many methods have been developed to identify the cause-effect pairs in models and have been successfully applied to observational real-world data to determine the direction of causal relationships. Yet in bivariate situations, causal discovery problems remain challenging. One class of such methods, that also allows tackling the bivariate case, is based on Additive Noise Models (ANMs). Unfortunately, one aspect of these methods has not received much attention until now: what is the impact of different noise levels on the ability of these methods to identify the direction of the causal relationship. This work aims to bridge this gap with the help of an empirical study. We test Regression with Subsequent Independence Test (RESIT) using an exhaustive range of models where the level of additive noise gradually changes from 1\% to 10000\% of the causes' noise level (the latter remains fixed). Additionally, the experiments in this work consider several different types of distributions as well as linear and non-linear models. The results of the experiments show that ANMs methods can fail to capture the true causal direction for some levels of noise., Comment: Presented at 10\`emes Journ\'ees Francophones sur les R\'eseaux Bay\'esiens et les Mod\`eles Graphiques Probabilistes (JFRB-2021), https://pageperso.lis-lab.fr/christophe.gonzales/research/jfrb2021/programme.php

Published
2021

9. Geometrische Größen

Author

Feinäugle, Albert, Fericean, Sorin, Hubrich, Stefan, Forkl, Alexander, Herfort, Christopher, Halder, Ernst, Hahn, Bernhard, Burkhardt, Thomas, Sester, Stefan, Basler, Stefan, Röbel, Michael, Schönfelder, Gert, Giebeler, Carsten, Reichenbach, Jürgen, Engel, Thomas, Hering, Ekbert, editor, and Schönfelder, Gert, editor

Published
2023
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13. Software-Defined Location Privacy Protection for Vehicular Networks

Author

Boualouache, Abdelwahab, Soua, Ridha, and Engel, Thomas

Subjects
Computer Science - Cryptography and Security
Abstract

While the adoption of connected vehicles is growing, security and privacy concerns are still the key barriers raised by society. These concerns mandate automakers and standardization groups to propose convenient solutions for privacy preservation. One of the main proposed solutions is the use of Pseudonym-Changing Strategies (PCSs). However, ETSI has recently published a technical report which highlights the absence of standardized and efficient PCSs [1]. This alarming situation mandates an innovative shift in the way that the privacy of end-users is protected during their journey. Software-Defined Networking (SDN) is emerging as a key 5G enabler to manage the network in a dynamic manner. SDN-enabled wireless networks are opening up new programmable and highly-flexible privacy-aware solutions. We exploit this paradigm to propose an innovative software-defined location privacy architecture for vehicular networks. The proposed architecture is context-aware, programmable, extensible, and able to encompass all existing and future pseudonym-changing strategies. To demonstrate the merit of our architecture, we consider a case study that involves four pseudonym-changing strategies, which we deploy over our architecture and compare with their static implementations. We also detail how the SDN controller dynamically switches between the strategies according to the context.

Published
2020

16. Geometric Quantities

Author

Hering, Ekbert, Schönfelder, Gert, Basler, Stefan, Biehl, Karl-Ernst, Burkhardt, Thomas, Engel, Thomas, Feinäugle, Albert, Fericean, Sorin, Forkl, Alexander, Giebeler, Carsten, Hahn, Bernhard, Halder, Ernst, Herfort, Christopher, Hubrich, Stefan, Reichenbach, Jürgen, Röbel, Michael, Sester, Stefan, Hering, Ekbert, editor, and Schönfelder, Gert, editor

Published
2022
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17. The Effect of Noise Level on the Accuracy of Causal Discovery Methods with Additive Noise Models

Author

Kap, Benjamin, Aleksandrova, Marharyta, Engel, Thomas, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Leiva, Luis A., editor, Pruski, Cédric, editor, Markovich, Réka, editor, Najjar, Amro, editor, and Schommer, Christoph, editor

Published
2022
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18. Pharmacogenomics of GLP-1 receptor agonists: a genome-wide analysis of observational data and large randomised controlled trials

Author

't Hart, L.M., Abdalla, M., Adam, J., Adamski, J., Adragni, K., Allin, K.H., Arumugam, M., Atabaki Pasdar, N., Baltauss, T., Banasik, K.B., Baum, P., Bell, J.D., Bergstrom, M., Beulens, J.W., Bianzano, S., Bizzotto, R., Bonneford, A., Brorsson, C.A.B., Brown, A.A., Brunak, S.B., Cabrelli, L., Caiazzo, R., Canouil, M., Dale, M., Davtian, D., Dawed, A.Y., De Masi, F.M., de Preville, N., Dekkers, K.F., Dermitzakis, E.T., Deshmukh, H.A., Dings, C., Donnelly, L., Dutta, A., Ehrhardt, B., Elders, P.J.M., Engel Thomas, C.E.T., Engelbrechtsen, L., Eriksen, R.G., Eriksen, R.E., Fan, Y., Fernandez, J., Ferrer, J., Fitipaldi, H., Forgie, I.M., Forman, A., Franks, P.W., Frau, F., Fritsche, A., Froguel, P., Frost, G., Gassenhuber, J., Giordano, G.N., Giorgino, T., Gough, S., Graefe-Mody, U., Grallert, H., Grempler, R., Groeneveld, L., Groop, L., Gudmundsdóttir, V.G., Gupta, R.G., Haid, M., Hansen, T., Hansen, T.H., Hattersley, A.T., Haussler, R.S., Heggie, A.J., Hennige, A.M., Hill, A.V., Holl, R.W., Hong, M.-G., Hudson, M., Jablonka, B., Jennison, C., Jiao, J., Johansen, J.J., Jones, A.G., Jonsson, A., Karaderi, T.K., Kaye, J., Klintenberg, M., Koivula, R.W., Kokkola, T., Koopman, A.D.M., Kurbasic, A, Kuulasmaa, T., Laakso, M., Lehr, T., Loftus, H., Lundbye Allesøe, R.L.A, Mahajan, A., Mari, A., Mazzoni, G.M., McCarthy, M.I., McDonald, T.J., McEvoy, D., McRobert, N., McVittie, I., Mourby, M., Musholt, P., Mutie, P, Nice, R., Nicolay, C., Nielsen, A.M.N., Nilsson, B.N., Palmer, C.N., Pattou, F., Pavo, I., Pearson, E.R., Pedersen, O., Pedersen, H.K.P., Perry, M.H., Pomares-Millan, H., Ramisch, A., Rasmussen, S.R., Raverdi, V., Ridderstrale, M., Robertson, N., Roderick, R.C., Rodriquez, M., Ruetten, H., Rutters, F., Sackett, W., Scherer, N., Schwenk, J.M., Shah, N., Sharma, S., Sihinevich, I., Sondertoft, N.B., Staerfeldt, H., Steckel-Hamann, B., Teare, H., Thomas, M.K., Thomas, E.L., Thomsen, H.S., Thorand, B., Thorne, C.E., Tillner, J., Troen Lundgaard, A.T.L., Troll, M., Tsirigos, K.D.T., Tura, A., Uhlen, M., van Leeuwen, N., van Oort, S., Verkindt, H., Vestergaard, H., Viñuela, A., Vogt, J.K, Wad Sackett, P.W.S, Wake, D., Walker, M., Wesolowska-Andersen, A., Whitcher, B., White, M.W., Wu, H., Dawed, Adem Y, Mari, Andrea, Brown, Andrew, McDonald, Timothy J, Li, Lin, Wang, Shuaicheng, Hong, Mun-Gwan, Sharma, Sapna, Robertson, Neil R, Mahajan, Anubha, Wang, Xuan, Walker, Mark, Gough, Stephen, Hart, Leen M ‘t, Zhou, Kaixin, Forgie, Ian, Ruetten, Hartmut, Pavo, Imre, Bhatnagar, Pallav, Jones, Angus G, and Pearson, Ewan R

Published
2023
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20. Zusammenfassung und Ausblick

Author

Engel, Thomas, Ehrlich, Martin, Drössler, Stephanie, Erfurth, Christian, Lemanski, Sandra, Engel, Thomas, editor, Erfurth, Christian, editor, Drössler, Stephanie, editor, and Lemanski, Sandra, editor

Published
2021
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21. Gestaltungswissen und Werkzeuge: Betriebliche Erfahrungen mit Präventionsinstrumenten und überbetriebliche Konzepte

Author

Füchtenkötter, Manfred, Erfurth, Christian, Semm, Arlett, Wolf, Marcus, Lemanski, Sandra, Vitera, Jan, Muehlan, Holger, Drössler, Stephanie, Bretschneider, Maximilian, Magister, Selina, Zeiser, Maria, Kämpf, Daniel, Seidler, Andreas, Ehrlich, Martin, Engel, Thomas, Künzel, Laura, Haupold, Gitta, Schulze, Carola, Bauer, Thomas, Lerner, Peggy, Schubach, Jan, Hachmeister, Gisela, Schinke, Sylvio, Engel, Thomas, editor, Erfurth, Christian, editor, Drössler, Stephanie, editor, and Lemanski, Sandra, editor

Published
2021
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22. Die Praxis der Digitalisierung: Unternehmensfallstudien im Spiegel der Debatten

Author

Engel, Thomas, Ehrlich, Martin, Ibrahim, Walid, Füchtenkötter, Manfred, Semm, Arlett, Erfurth, Christian, Schulz, Antonio, Wolf, Marcus, Thiele, Laura, Drössler, Stephanie, Bretschneider, Maximilian, Kämpf, Daniel, Magister, Selina, Zeiser, Maria, Seidler, Andreas, Muehlan, Holger, Vitera, Jan, Lemanski, Sandra, Engel, Thomas, editor, Erfurth, Christian, editor, Drössler, Stephanie, editor, and Lemanski, Sandra, editor

Published
2021
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28. Security and Performance Implications of BGP Rerouting-Resistant Guard Selection Algorithms for Tor

Author

Mitseva, Asya, Aleksandrova, Marharyta, Engel, Thomas, Panchenko, Andriy, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Goedicke, Michael, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Tröltzsch, Fredi, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, Kreps, David, Editorial Board Member, Reis, Ricardo, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Hölbl, Marko, editor, and Welzer, Tatjana, editor

Published
2020
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29. Tracking Without Traces—Fingerprinting in an Era of Individualism and Complexity

Author

Adamsky, Florian, Schiffner, Stefan, Engel, Thomas, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Antunes, Luís, editor, Naldi, Maurizio, editor, Italiano, Giuseppe F., editor, Rannenberg, Kai, editor, and Drogkaris, Prokopios, editor

Published
2020
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31. Brandschutz für biogene Fassaden

Author

Winter, Stefan (Prof. Dr.), Winter, Stefan (Prof. Dr.);Zehfuß, Jochen (Prof. Dr.);Frangi, Andrea (Prof. Dr.), Engel, Thomas Maximilian, Winter, Stefan (Prof. Dr.), Winter, Stefan (Prof. Dr.);Zehfuß, Jochen (Prof. Dr.);Frangi, Andrea (Prof. Dr.), and Engel, Thomas Maximilian

Abstract

Ziel dieser Arbeit war es, das Brandverhalten von Holz- und begrünten Fassaden zu untersuchen und aus den Ergebnissen Vorschläge für brandschutztechnisch sichere Konstruktionen abzuleiten. Ein weiterer Fokus dieser Untersuchung war der mögliche Einfluss des mehrgeschossigen Holzbaus auf den Fassadenbrand aufgrund seiner zusätzlichen strukturellen Brandlast. Die durchgeführten Fassaden- und Raumbrandversuche liefern Prinzipien für eine brandschutztechnisch sichere Planung., The aim of this work was to investigate the fire behaviour of wooden and green façades and to derive suggestions for fire-safe structural designs based on the results. This investigation also focused on the possible influence of multi-storey timber buildings on façade fires due to its additional structural fire loads. The results of the façade and compartment fire tests provide principles for fire-safe design.

Published
2024

32. Grundlagen zur brandschutztechnischen Anwendbarkeit von begrünten Fassaden an mehrgeschossigen Gebäuden.

Author

Engel, Thomas and Winter, Stefan

Subjects
*MOISTURE content of plants, *FLAMMABLE materials, *PLANT species
Abstract

Basic principles for a fire‐safe application of green façades on multi‐storey buildings. Green façades are in vogue. Fire spread along the façade is generally one of the most critical fire scenarios worldwide, and plants are additional combustible materials. The influence of green façades on fire propagation along the façade should therefore not be neglected. However, little research is available on this topic. The FireSafeGreen research project aims to change this. The main factor influencing the fire behaviour of plants is the moisture content. The plant species itself plays a subordinate role in terms of fire behaviour. A combination of wooden and green façade does not lead to an ignition of the wooden façade under consideration of some boundary conditions. In principle, appropriate care and maintenance are the key factors for fire‐safe green façades. [ABSTRACT FROM AUTHOR]

Published
2024
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34. Performance Analysis of MANET Routing Protocols in Urban VANETs

Author

Di Maio, Antonio, Palattella, Maria Rita, Engel, Thomas, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Palattella, Maria Rita, editor, Scanzio, Stefano, editor, and Coleri Ergen, Sinem, editor

Published
2019
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35. Analysis of Multi-path Onion Routing-Based Anonymization Networks

Author

De la Cadena, Wladimir, Kaiser, Daniel, Mitseva, Asya, Panchenko, Andriy, Engel, Thomas, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, and Foley, Simon N., editor

Published
2019
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37. Whole blood co-expression modules associate with metabolic traits and type 2 diabetes: an IMI-DIRECT study

Author

Valborg Gudmundsdottir, Helle Krogh Pedersen, Gianluca Mazzoni, Kristine H. Allin, Anna Artati, Joline W. Beulens, Karina Banasik, Caroline Brorsson, Henna Cederberg, Elizaveta Chabanova, Federico De Masi, Petra J. Elders, Ian Forgie, Giuseppe N. Giordano, Harald Grallert, Ramneek Gupta, Mark Haid, Torben Hansen, Tue H. Hansen, Andrew T. Hattersley, Alison Heggie, Mun-Gwan Hong, Angus G. Jones, Robert Koivula, Tarja Kokkola, Markku Laakso, Peter Løngreen, Anubha Mahajan, Andrea Mari, Timothy J. McDonald, Donna McEvoy, Petra B. Musholt, Imre Pavo, Cornelia Prehn, Hartmut Ruetten, Martin Ridderstråle, Femke Rutters, Sapna Sharma, Roderick C. Slieker, Ali Syed, Juan Fernandez Tajes, Cecilia Engel Thomas, Henrik S. Thomsen, Jagadish Vangipurapu, Henrik Vestergaard, Ana Viñuela, Agata Wesolowska-Andersen, Mark Walker, Jerzy Adamski, Jochen M. Schwenk, Mark I. McCarthy, Ewan Pearson, Emmanouil Dermitzakis, Paul W. Franks, Oluf Pedersen, and Søren Brunak

Subjects
Type 2 diabetes, Transcriptomics, Co-expression modules, Omics data integration, Medicine, Genetics, QH426-470
Abstract

Abstract Background The rising prevalence of type 2 diabetes (T2D) poses a major global challenge. It remains unresolved to what extent transcriptomic signatures of metabolic dysregulation and T2D can be observed in easily accessible tissues such as blood. Additionally, large-scale human studies are required to further our understanding of the putative inflammatory component of insulin resistance and T2D. Here we used transcriptomics data from individuals with (n = 789) and without (n = 2127) T2D from the IMI-DIRECT cohorts to describe the co-expression structure of whole blood that mainly reflects processes and cell types of the immune system, and how it relates to metabolically relevant clinical traits and T2D. Methods Clusters of co-expressed genes were identified in the non-diabetic IMI-DIRECT cohort and evaluated with regard to stability, as well as preservation and rewiring in the cohort of individuals with T2D. We performed functional and immune cell signature enrichment analyses, and a genome-wide association study to describe the genetic regulation of the modules. Phenotypic and trans-omics associations of the transcriptomic modules were investigated across both IMI-DIRECT cohorts. Results We identified 55 whole blood co-expression modules, some of which clustered in larger super-modules. We identified a large number of associations between these transcriptomic modules and measures of insulin action and glucose tolerance. Some of the metabolically linked modules reflect neutrophil-lymphocyte ratio in blood while others are independent of white blood cell estimates, including a module of genes encoding neutrophil granule proteins with antibacterial properties for which the strongest associations with clinical traits and T2D status were observed. Through the integration of genetic and multi-omics data, we provide a holistic view of the regulation and molecular context of whole blood transcriptomic modules. We furthermore identified an overlap between genetic signals for T2D and co-expression modules involved in type II interferon signaling. Conclusions Our results offer a large-scale map of whole blood transcriptomic modules in the context of metabolic disease and point to novel biological candidates for future studies related to T2D.

Published
2020
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43. On Using Cognition for Anomaly Detection in SDN

Author

Tantar, Emilia, Tantar, Alexandru-Adrian, Kantor, Miroslaw, Engel, Thomas, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Advisory editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, Tantar, Alexandru-Adrian, editor, Tantar, Emilia, editor, Emmerich, Michael, editor, Legrand, Pierrick, editor, Alboaie, Lenuta, editor, and Luchian, Henri, editor

Published
2018
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46. Towards Reinventing Online Privacy

Author

Gheorghe, Gabriela, Engel, Thomas, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Berendt, Bettina, editor, Engel, Thomas, editor, Ikonomou, Demosthenes, editor, Le Métayer, Daniel, editor, and Schiffner, Stefan, editor

Published
2016
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