Goals of the uTrust project

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The goal of our research is to enhance the functionality of distributed information systems by providing a standard service for managing trust.

uTrust (universal Trust) project is a first step on this path. The goal of uTrust is to develop a universal and formalized approach for trust management in a wide range of distributed information systems. Basing on this approach, the practical goal of the project is to provide a universal library of trust management functions.

In the future, trust management should become yet another, standard service of information security, such as authentication, authorization, privacy or integrity. For this to happen, it is necessary to define standard, universal primitives of trust management.

Existing approaches for managing trust are often tied to particular domains, too complex to compute or based on arbitrary assumptions. We will propose models of trust that will be:

  • supported by formal analysis;
  • computationally efficient;
  • universal (applicable to a wide range of distributed information systems).

Currently, trust management models are almost impossible to compare, as the methodologies, the approaches or the outcomes are radically different. We will propose common evaluation methods, against which different approaches can be validated. The basis of these methods will be analysis and simulation using common models of adversaries and benchmarks for trust management algorithms.

In order to validate our approach in real-world applications, we will create a library of universal trust management methods, algorithms, and protocols. The library will be developed as an Open Source project and available to the entire community for development, testing and evaluation.

The uTrust project is funded by the Polish Ministry of Science and
Higher Education
under the research grant N N516 4307 33.

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Project publications since 2007

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Adaptable security mechanism for dynamic environments Zbigniew Kotulski Bogdan Księżopolski computers & security, 246-255

On Decision Support Under Risk by the WOWA Optimization Wlodzimierz Ogryczak and Tomasz Sliwiński
K. Mellouli Ed.: ECSQARU 2007, LNAI 4724, pp. 779–790, c Springer-Verlag Berlin Heidelberg 2007, 779–790

The Case for Fairness of Trust Management Adam Wierzbicki Electronic Notes in Theoretical Computer Science

Fairness Emergence through Simple Reputation Wierzbicki A., Nielek R. TrustBus 2008, Springer, pp. 79-89

Fighting Web Spam M.Sydow, J.Piskorski, D.Weiss, C.Castillo D.Perrotta et al. (editors): "Mining Massive Data Sets for Security". NATO Science for Peace nad Security Series, D: Information and Communication Security, vol. 19, pp. 134-153

On Subjective Trust Management Michał Majdan 4/2008 Journal of telecommunications and informations technology

Reference Point Method with Importance Weighted Ordered Achievements W.Ogryczak, B.Kozlowski
D.Ruan: Computational Inteligence in Decision and Control, World Scientific Publishing

Towards Using Contextual Information to Learn Trust Metric in Social Networks: A Proposal M.Sydow
Proceedings of Context and Trust (CAT08), 2nd Workshop on Combining Context and Trust, Security and Privacy, G. Lenzini et al. (eds.), CEUR Workshop Proceedings, ISSN 1613-0073, vol. 371, pp. 11-16, 2008, IFIPTM 2008 Conference, Trondheim, Norway

WOWA Enhancement of the Preference Modeling in the Reference Point Method W.Ogryczak MDAI 2008, Lecture Notes in Artificial Intelligence 5285, Springer

A Blueprint for Universal Trust Management Services
Kaszuba, T.; Rzadca, K.; Wierzbicki, A. and Wierzowiecki, G. Techreport

A generic and overlay-agnostic publish-subscribe protocol P. Adamska, A. Wierzbicki, T. Kaszuba, Proc. AP2PS, 2009, IEEE, pp. 98-103

A Web Browser Extension for Improving Security in Internet Auctions Kaszuba, Tomasz and Turek, Piotr and Wierzbicki, Adam and Nielek, Radoslaw
Proceedings of the WebSci'09: Society On-Line, 18-20 March 2009, Athens, Greece

Between Informativity and Emotion. Spiral of hatred: social effects in Internet auctions Nielek R., Wawer A., Wierzbicki A. Special Issue of Electronic Commerce Research Journal on Trust and Privacy Aspects of Electronic Commerece, Springer

Comment classification for Internet auction platforms Tomasz Kaszuba , Albert Hupa , and Adam Wierzbicki (TR4Web) Trust, Risk, Reputation and Recommendation on the Web Riga, in conjuction with ADBIS'2009 13th East-European Conference on Advances in Databases and Information Systems, Latvia, September 7

Conditional median as a robust solution concept for uncapacitated location problems W.Ogryczak
TOP, 18 (2010), 271–285.

Decision Support under Risk by Optimization of Scenario Importance Weighted OWA Aggregations W.Ogryczak, T.Śliwiński Journal of Telecommunications and Information Technology, 3/2009, 5-13

Discovering the Most Trusted Agents without Central Control Tomasz Kaszuba and Krzysztof Rzadca and Adam Wierzbicki
Embedded and Ubiquitous Computing, IEEE/IFIP International Conference

Enriching Trust Prediction Model in Social Network with User Rating Similarity P.Borzymek, M.Sydow, A.Wierzbicki Proc. of "Computational Aspects of Social Networks" (CASoN 2009) pp.40-47, IEEE Computer Society

On Efficient WOWA Optimization for Decision Support under Risk, W.Ogryczak, T.Śliwiński
International Journal of Approximate Reasoning, 50, (2009), 915-928.

On Principles of Fair Resource Allocation for Importance Weighted Agents W.Ogryczak Proceedings International Workshop on Social Informatics SOCINFO 2009, IEEE Computer Society Press, 2009, 57–62

On solving the dual for portfolio selection by optimizing Conditional Value at Risk W.Ogryczak, T.Śliwiński
Computational Optimization and Applications, Springer-online, (2010), DOI: 10.1007/s10589-010-9321-y.

Ordered weighted enhancement of preference modeling in the reference point method for multiple criteria optimization W.Ogryczak
Soft Computing, 14 , (2010), 345-360

ProtoTrust: An Environment for Improved Trust Management in Internet Auctions Tomasz Kaszuba, Piotr Turek, Adam Wierzbicki and Radoslaw Nielek (TR4Web) Trust, Risk, Reputation and Recommendation on the Web Riga, in conjuction with ADBIS'2009 13th East-European Conference on Advances in Databases and Information Systems, Latvia, September 7

Remove Positive Comment Descriptions. Between Informativity and Sentiment Wawer A., Nielek R. TR4Web, in conjuction with ADBIS'2009 13th East-European Conference on Advances in Databases and Information Systems, Latvia

Social Effects in Buyer-Seller Cross-Comments Left on Internet Auctions Nielek R., Wawer A., Wierzbicki A. IFIP Advances in Information and Communication Technology, 2009, Springer, pp. 1 - 14

Trust and Fairness Management in P2P and Grid systems Wierzbicki A., Kaszuba T., Nielek R., Datta A. Handbook of Research on P2p and Grid Systems for Service-oriented Computing: Models, Methodologies and Applications, IGI-Global

Wars, (empty) threats and other effects in buyer-seller cross-comments left on Internet auctions Nielek, Radoslaw and Wawer, Aleksander and Wierzbicki, Adam Proceedings of the WebSci'09: Society On-Line, 18-20 March 2009, Athens, Greece

Efficient and Correct Trust
Propagation Using CloseLook

Adam Wierzbicki and Grzegorz Wierzowiecki 2nd IEEE Symposium on Web Society

Trust and Distrust Prediction in Social Network with Combined Graphical and Review-based Attributes P.Borzymek, M.Sydow LNCS/LNAI series of Springer

Fairness Emergence in Reputation Systems R. Nielek, A. Wierzbicki Journal of Artificial Societies and Social Simulation, accepted for publication

Advanced Feedback Management for Internet Auction Reputation Systems T. Kaszuba, A. Hupa, A. Wierzbicki IEEE Internet Computing, September/October 2010, vol. 14, no. 5

Bicriteria Models for Fair and Efficient Resource Allocation W.Ogryczak Proceedings International Workshop on Social Informatics SOCINFO 2010, Lecture Notes in Computer Science, 6430, 140–159

ProtoTrust: A Web Browser Extension for Improving Security in Internet Auctions T. Kaszuba, P. Turek, A. Wierzbicki Demonstration at Trust Management IV - 4th IFIP WG 11.11 International Conference, IFIPTM 2010

Subjective Reputation Management Model M.Majdan, W.Ogryczak Lecture Notes in Artificial Intelligence, 6086 (2010), 678–687

Trust and Fairness in Open, Distributed Systems Adam Wierzbicki Springer series on Computational Intelligence, vol. 298