Distributed Information Systems Laboratory LSIR

trust management and social networks

A fundamental and pressing problem in our information infrastructure us the establishment of trusted relationships. Web advertising, social networking and community platforms are examples where trust and the related question of privacy are questions of primordial importance. We are investigating a wide range of statistical, machine learning and game-theoretic techniques for enabling trusted interaction in today's Web.

Current research projects

    CloudSpaces - Open Service Platform for the Next Generation of Personal clouds

    Reconcile - Robust Online Credibility Evaluation of Web Content

    Network of Excellence in Internet Science

Recent results


W. Galuba. Signaling and Reciprocity: Robust Decentralized Information Flows in Social, Communication, and Computer Networks. EPFL, Lausanne, 2011.
H. L. Vu. High Quality P2P Service Provisioning via Decentralized Trust Management. EPFL, Lausanne, 2010.
Z. Despotovic Building trust-aware P2P systems: from trust and reputation management to decentralized e-commerce applications. EPFL, Lausanne, 2005.

Recent Papers

W. Galuba, D. Chakraborty, K. Aberer, Z. Despotovic and W. Kellerer. Outtweeting the Twitterers - Predicting Information Cascades in Microblogs. 3rd Workshop on Online Social Networks (WOSN 2010), Boston, Massachusetts, USA, June 22, 2010.
W. Galuba, K. Aberer, Z. Despotovic and W. Kellerer. Leveraging Social Networks for Increased BitTorrent Robustness. 7th Annual IEEE Consumer Communications & Neetworking Conference, Las Vegas, Nevada, USA, January 9-12, 2010.
H. L. Vu and K. Aberer. Using identity premium for cooperation enforcement and whitewashing prevention in rational environments, 2010.
L. H. Vu, T. G. Papaioannou and K. Aberer. Impact of Trust Management and Information Sharing to Adversarial Cost in Ranking Systems. 4th IFIP WG 11.11 International Conference on Trust Management (IFIPTM 2010), Morioka, Iwate, Japan, June 14-18, 2010.
Z. Despotovic and K. Aberer. P2P Reputation Management : Probabilistic Estimation vs Social Networks, in Computer Networks, vol. 50, num. 4, p. 485-500, 2006.
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