Search

Your search keyword '"BRUNIE, LIONEL"' showing total 343 results
Start Over Author "BRUNIE, LIONEL"
343 results on '"BRUNIE, LIONEL"'

3. A transparent referendum protocol with immutable proceedings and verifiable outcome for trustless networks

Author

Schiedermeier, Maximilian, Hasan, Omar, Mayer, Tobias, Brunie, Lionel, and Kosch, Harald

Subjects
Computer Science - Cryptography and Security
Abstract

High voter turnout in elections and referendums is very desirable in order to ensure a robust democracy. Secure electronic voting is a vision for the future of elections and referendums. Such a system can counteract factors that hinder strong voter turnout such as the requirement of physical presence during limited hours at polling stations. However, this vision brings transparency and confidentiality requirements that render the design of such solutions challenging. Specifically, the counting must be implemented in a reproducible way and the ballots of individual voters must remain concealed. In this paper, we propose and evaluate a referendum protocol that ensures transparency, confidentiality, and integrity, in trustless networks. The protocol is built by combining Secure Multi-Party Computation (SMPC) and Distributed Ledger or Blockchain technology. The persistence and immutability of the protocol communication allows verifiability of the referendum outcome on the client side. Voters therefore do not need to trust in third parties. We provide a formal description and conduct a thorough security evaluation of our proposal., Comment: 14 pages, 3 figures

Published
2019

4. Empirical Study of the Model Generalization for Argument Mining in Cross-Domain and Cross-Topic Settings

Author

Alhamzeh, Alaa, Egyed-Zsigmond, Előd, Mekki, Dorra El, Khayari, Abderrazzak El, Mitrović, Jelena, Brunie, Lionel, Kosch, Harald, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Hameurlain, Abdelkader, editor, and Tjoa, A Min, editor

Published
2022
Full Text
View/download PDF

5. Query Expansion, Argument Mining and Document Scoring for an Efficient Question Answering System

Author

Alhamzeh, Alaa, Bouhaouel, Mohamed, Egyed-Zsigmond, Előd, Mitrović, Jelena, Brunie, Lionel, Kosch, Harald, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Barrón-Cedeño, Alberto, editor, Da San Martino, Giovanni, editor, Degli Esposti, Mirko, editor, Sebastiani, Fabrizio, editor, Macdonald, Craig, editor, Pasi, Gabriella, editor, Hanbury, Allan, editor, Potthast, Martin, editor, Faggioli, Guglielmo, editor, and Ferro, Nicola, editor

Published
2022
Full Text
View/download PDF

6. A Stacking Approach for Cross-Domain Argument Identification

Author

Alhamzeh, Alaa, Bouhaouel, Mohamed, Egyed-Zsigmond, Előd, Mitrović, Jelena, Brunie, Lionel, Kosch, Harald, 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, Strauss, Christine, editor, Kotsis, Gabriele, editor, Tjoa, A Min, editor, and Khalil, Ismail, editor

Published
2021
Full Text
View/download PDF

7. A Hybrid Approach for Stock Market Prediction Using Financial News and Stocktwits

Author

Alhamzeh, Alaa, Mukhopadhaya, Saptarshi, Hafid, Salim, Bremard, Alexandre, Egyed-Zsigmond, Előd, Kosch, Harald, Brunie, Lionel, 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, Candan, K. Selçuk, editor, Ionescu, Bogdan, editor, Goeuriot, Lorraine, editor, Larsen, Birger, editor, Müller, Henning, editor, Joly, Alexis, editor, Maistro, Maria, editor, Piroi, Florina, editor, Faggioli, Guglielmo, editor, and Ferro, Nicola, editor

Published
2021
Full Text
View/download PDF

8. Adaptive Location Privacy with ALP

Author

Primault, Vincent, Boutet, Antoine, Mokhtar, Sonia Ben, and Brunie, Lionel

Subjects
Computer Science - Cryptography and Security
Abstract

With the increasing amount of mobility data being collected on a daily basis by location-based services (LBSs) comes a new range of threats for users, related to the over-sharing of their location information. To deal with this issue, several location privacy protection mechanisms (LPPMs) have been proposed in the past years. However, each of these mechanisms comes with different configuration parameters that have a direct impact both on the privacy guarantees offered to the users and on the resulting utility of the protected data. In this context, it can be difficult for non-expert system designers to choose the appropriate configuration to use. Moreover, these mechanisms are generally configured once for all, which results in the same configuration for every protected piece of information. However, not all users have the same behaviour, and even the behaviour of a single user is likely to change over time. To address this issue, we present in this paper ALP, a new framework enabling the dynamic configuration of LPPMs. ALP can be used in two scenarios: (1) offline, where ALP enables a system designer to choose and automatically tune the most appropriate LPPM for the protection of a given dataset; (2) online, where ALP enables the user of a crowd sensing application to protect consecutive batches of her geolocated data by automatically tuning an existing LPPM to fulfil a set of privacy and utility objectives. We evaluate ALP on both scenarios with two real-life mobility datasets and two state-of-the-art LPPMs. Our experiments show that the adaptive LPPM configurations found by ALP outperform both in terms of privacy and utility a set of static configurations manually fixed by a system designer., Comment: 35th Symposium on Reliable Distributed Systems, Sep 2016, Budapest, Hungary

Published
2016

9. Time Distortion Anonymization for the Publication of Mobility Data with High Utility

Author

Primault, Vincent, Mokhtar, Sonia Ben, Lauradoux, Cédric, and Brunie, Lionel

Subjects
Computer Science - Cryptography and Security
Abstract

An increasing amount of mobility data is being collected every day by different means, such as mobile applications or crowd-sensing campaigns. This data is sometimes published after the application of simple anonymization techniques (e.g., putting an identifier instead of the users' names), which might lead to severe threats to the privacy of the participating users. Literature contains more sophisticated anonymization techniques, often based on adding noise to the spatial data. However, these techniques either compromise the privacy if the added noise is too little or the utility of the data if the added noise is too strong. We investigate in this paper an alternative solution, which builds on time distortion instead of spatial distortion. Specifically, our contribution lies in (1) the introduction of the concept of time distortion to anonymize mobility datasets (2) Promesse, a protection mechanism implementing this concept (3) a practical study of Promesse compared to two representative spatial distortion mechanisms, namely Wait For Me, which enforces k-anonymity, and Geo-Indistinguishability, which enforces differential privacy. We evaluate our mechanism practically using three real-life datasets. Our results show that time distortion reduces the number of points of interest that can be retrieved by an adversary to under 3 %, while the introduced spatial error is almost null and the distortion introduced on the results of range queries is kept under 13 % on average., Comment: in 14th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, Aug 2015, Helsinki, Finland

Published
2015

10. Privacy-preserving Publication of Mobility Data with High Utility

Author

Primault, Vincent, Mokhtar, Sonia Ben, and Brunie, Lionel

Subjects
Computer Science - Cryptography and Security
Abstract

An increasing amount of mobility data is being collected every day by different means, e.g., by mobile phone operators. This data is sometimes published after the application of simple anonymization techniques, which might lead to severe privacy threats. We propose in this paper a new solution whose novelty is twofold. Firstly, we introduce an algorithm designed to hide places where a user stops during her journey (namely points of interest), by enforcing a constant speed along her trajectory. Secondly, we leverage places where users meet to take a chance to swap their trajectories and therefore confuse an attacker., Comment: 2015 35th IEEE International Conference on Distributed Computed Systems

Published
2015
Full Text
View/download PDF

14. Differentially Private Location Privacy in Practice

Author

Primault, Vincent, Mokhtar, Sonia Ben, Lauradoux, Cedric, and Brunie, Lionel

Subjects
Computer Science - Cryptography and Security
Abstract

With the wide adoption of handheld devices (e.g. smartphones, tablets) a large number of location-based services (also called LBSs) have flourished providing mobile users with real-time and contextual information on the move. Accounting for the amount of location information they are given by users, these services are able to track users wherever they go and to learn sensitive information about them (e.g. their points of interest including home, work, religious or political places regularly visited). A number of solutions have been proposed in the past few years to protect users location information while still allowing them to enjoy geo-located services. Among the most robust solutions are those that apply the popular notion of differential privacy to location privacy (e.g. Geo-Indistinguishability), promising strong theoretical privacy guarantees with a bounded accuracy loss. While these theoretical guarantees are attracting, it might be difficult for end users or practitioners to assess their effectiveness in the wild. In this paper, we carry on a practical study using real mobility traces coming from two different datasets, to assess the ability of Geo-Indistinguishability to protect users' points of interest (POIs). We show that a curious LBS collecting obfuscated location information sent by mobile users is still able to infer most of the users POIs with a reasonable both geographic and semantic precision. This precision depends on the degree of obfuscation applied by Geo-Indistinguishability. Nevertheless, the latter also has an impact on the overhead incurred on mobile devices resulting in a privacy versus overhead trade-off. Finally, we show in our study that POIs constitute a quasi-identifier for mobile users and that obfuscating them using Geo-Indistinguishability is not sufficient as an attacker is able to re-identify at least 63% of them despite a high degree of obfuscation., Comment: In Proceedings of the Third Workshop on Mobile Security Technologies (MoST) 2014 (http://arxiv.org/abs/1410.6674)

Published
2014

16. CrowdED and CREX: Towards Easy Crowdsourcing Quality Control Evaluation

Author

Awwad, Tarek, Bennani, Nadia, Rehn-Sonigo, Veronika, Brunie, Lionel, Kosch, Harald, 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, Welzer, Tatjana, editor, Eder, Johann, editor, Podgorelec, Vili, editor, and Kamišalić Latifić, Aida, editor

Published
2019
Full Text
View/download PDF

18. LPL, Towards a GDPR-Compliant Privacy Language: Formal Definition and Usage

Author

Gerl, Armin, Bennani, Nadia, Kosch, Harald, Brunie, Lionel, 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, Hameurlain, Abdelkader, editor, and Wagner, Roland, editor

Published
2018
Full Text
View/download PDF

19. Self-reported Verifiable Reputation with Rater Privacy

Author

Bazin, Rémi, Schaub, Alexander, Hasan, Omar, Brunie, Lionel, Rannenberg, Kai, Editor-in-chief, Sakarovitch, Jacques, Series editor, Goedicke, Michael, Series editor, Tatnall, Arthur, Series editor, Neuhold, Erich J., Series editor, Pras, Aiko, Series editor, Tröltzsch, Fredi, Series editor, Pries-Heje, Jan, Series editor, Whitehouse, Diane, Series editor, Reis, Ricardo, Series editor, Furnell, Steven, Series editor, Furbach, Ulrich, Series editor, Winckler, Marco, Series editor, Rauterberg, Matthias, Series editor, Steghöfer, Jan-Philipp, editor, and Esfandiari, Babak, editor

Published
2017
Full Text
View/download PDF

24. A Trustless Privacy-Preserving Reputation System

Author

Schaub, Alexander, Bazin, Rémi, Hasan, Omar, Brunie, Lionel, Rannenberg, Kai, Editor-in-chief, Sakarovitch, Jacques, Series editor, Goedicke, Michael, Series editor, Tatnall, Arthur, Series editor, Neuhold, Erich J., Series editor, Pras, Aiko, Series editor, Tröltzsch, Fredi, Series editor, Pries-Heje, Jan, Series editor, Whitehouse, Diane, Series editor, Reis, Ricardo, Series editor, Murayama, Yuko, Series editor, Furbach, Ulrich, Series editor, Gulliksen, Jan, Series editor, Rauterberg, Matthias, Series editor, Hoepman, Jaap-Henk, editor, and Katzenbeisser, Stefan, editor

Published
2016
Full Text
View/download PDF

31. User Centric Replication Approach to Maintain Data Availability in MANET

Author

Torbey, Zeina, Bennani, Nadia, Coquil, David, Brunie, Lionel, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, Venkatasubramanian, Nalini, editor, Getov, Vladimir, editor, and Steglich, Stephan, editor

Published
2012
Full Text
View/download PDF

32. Towards Automatic Detection of CBIRs Configuration

Author

Vilsmaier, Christian, Karp, Rolf, Döller, Mario, Kosch, Harald, Brunie, Lionel, 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, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Schoeffmann, Klaus, editor, Merialdo, Bernard, editor, Hauptmann, Alexander G., editor, Ngo, Chong-Wah, editor, Andreopoulos, Yiannis, editor, and Breiteneder, Christian, editor

Published
2012
Full Text
View/download PDF

33. Leveraging Node Centrality and Regularity for Efficient Routing in Mobile Peer-to-Peer Networks

Author

Miao, Jingwei, Hasan, Omar, Brunie, Lionel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Hameurlain, Abdelkader, editor, and Tjoa, A Min, editor

Published
2011
Full Text
View/download PDF

38. Multimedia Metadata Standards

Author

Bailer, Werner, Brunie, Lionel, Döller, Mario, Granitzer, Michael, Klamma, Ralf, Kosch, Harald, Lux, Mathias, Spaniol, Marc, and Furht, Borko, editor

Published
2008
Full Text
View/download PDF

39. Adaptable Distance-Based Decision-Making Support in Dynamic Cross-Grid Environment

Author

Gossa, Julien, Pierson, Jean-Marc, Brunie, Lionel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Kermarrec, Anne-Marie, editor, Bougé, Luc, editor, and Priol, Thierry, editor

Published
2007
Full Text
View/download PDF

40. X316 Security Toolbox for New Generation of Certificate

Author

Saadi, Rachid, Pierson, Jean Marc, Brunie, Lionel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Lambrinoudakis, Costas, editor, Pernul, Günther, editor, and Tjoa, A Min, editor

Published
2007
Full Text
View/download PDF

41. Authentication and Access Control Using Trust Collaboration in Pervasive Grid Environments

Author

Saadi, Rachid, Pierson, Jean Marc, Brunie, Lionel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Cérin, Christophe, editor, and Li, Kuan-Ching, editor

Published
2007
Full Text
View/download PDF

42. Context Adapted Certificate Using Morph Template Signature for Pervasive Environments

Author

Saadi, Rachid, Pierson, Jean Marc, Brunie, Lionel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ichikawa, Haruhisa, editor, Cho, We-Duke, editor, Satoh, Ichiro, editor, and Youn, Hee Yong, editor

Published
2007
Full Text
View/download PDF

43. Temporal Storage Space for Grids

Author

Cardenas, Yonny, Pierson, Jean-Marc, Brunie, Lionel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Gerndt, Michael, editor, and Kranzlmüller, Dieter, editor

Published
2006
Full Text
View/download PDF

47. Modeling User Intention in Pervasive Service Environments

Author

Bihler, Pascal, Brunie, Lionel, Scuturici, Vasile-Marian, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Yang, Laurence T., editor, Amamiya, Makoto, editor, Liu, Zhen, editor, Guo, Minyi, editor, and Rammig, Franz J., editor

Published
2005
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results