Distributed Information Systems Laboratory LSIR


Trust and reputation systems have proven to be essential to enforcing cooperative behavior in peer-to-peer networks. In this research we explore approaches to building reputation systems based on social networks formation, probabilistic estimation, and game theoretic models.

Updated February 16, 2009.


[1] K. Aberer, Z. Despotovic, " Managing Trust in a Peer-2-Peer Information System ", Proceedings of the Ninth International Conference on Information and Knowledge Management (CIKM 2001), Atlanta, Georgia, 2001.

[2] Z. Despotovic, K. Aberer, " Trust-Aware Delivery of Composite Goods ", International Workshop on Agents and Peer-To-Peer Computing (AP2PC 2002), Bologna, Italy, 2002.

[3] Z. Despotovic, K. Aberer, M. Hauswirth: " Trust-Aware Cooperation ", International Workshop on Mobile Teamwork, Vienna, 2002.

[4] Z. Despotovic, K. Aberer: Maximum Likelihood Estimation of Peers' Performance in P2P Networks. The Second Workshop on the Economics of Peer-to-Peer Systems, Harvard University, Cambridge, MA, USA, June 2004.

[5] Z. Despotovic, J.-C. Usunier, K. Aberer: "Towards Peer-to-Peer Double Auctioning", Proceedings of the 37th International Hawaiian Conference on System Sciences, Maui, USA, 2004.

[6] Z. Despotovic, K. Aberer: "A Probabilistic Approach to Predict Peers' Performance in P2P Networks", (best paper award) International Workshop on Cooperative Information Agents, CIA 2004, September 27 - 29, 2004, Erfurt, Germany.

[7] K. Aberer, P.  Cudré-Mauroux, Z. Despotovic, "On the Convergence of Structured Search, Information Retrieval and Trust Management in Distributed Systems", (invited paper) Third German Conference on Multi-Agent System Technologies (MATES), Koblenz, September 11-13, 2005.

[8] Le-Hung Vu, M. Hauswirth , K. Aberer, "QoS-based Service Selection and Ranking with Trust and Reputation Management", 13th International Conference on Cooperative Information Systems (CoopIS 2005), Agia Napa, Cyprus, Oct 31 - Nov 4, 2005.

[9] Le-Hung Vu, M. Hauswirth, K. Aberer, "Towards P2P-based semantic web service discovery with QoS supports", Workshop on Business Processes and Services (BPS), In conjunction with the 3rd International Conference on Business Process Management, Nancy, France, 5 September 2005.

[10] Z. Despotovic, K. Aberer: "Probabilistic Prediction of Peers' Performances in P2P Networks", International Journal of Engineering Applications of Artificial Intelligence", Elsevier, 2005.

[11] Z. Despotovic, K. Aberer: "P2P Reputation Management: Probabilistic Estimation vs. Social Networks", Journal of Computer Networks, Special Issue on Management in Peer-to-Peer Systems: Trust, Reputation and Security, Elsevier, 50(4): 485-500, 2006.

[12] K. Aberer, Z. Despotovic, W. Galuba and W. Kellerer, "The Complex Facets of Reputation and Trust", 9th Fuzzy Days, International Conference on Computational Intelligence Fuzzy Logic Neural Networks Evolutionary Algorithms, Dortmund, Germany, September 18 - 20, 2006.

[13] Le-Hung Vu, M. Hauswirth, F. Porto, and K. Aberer: "A Search Engine for QoS-enabled Discovery of Semantic Web Services", International Journal of Business Process Integration and Management (Inderscience Publishers), 2007.

class="style1">[14] W. Galuba, K. Aberer, Z. Despotovic, W. Kellerer: "Authentication-free fault-tolerant peer-to-peer service provisioning", The 5th International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P 2007), Vienna, Austria, September 2007.

[15] L.-H. Vu and K. Aberer, A Probabilistic Framework for Decentralized Management of Trust and Quality , Eleventh International Workshop on Cooperative Information Agents (CIA 2007), 2007.

[16] Le-Hung Vu and Karl Aberer: "Effective Usage of Computational Trust Models in Rational Environments", Web Intelligence Conference (WI-IAT'08), Sydney, Australia, December 9-12, 2008.