Seminars & Colloquia
Computer Science, NC State University
"Establishing and Mining Trust in Multiagent Systems"
Tuesday February 14, 2012 10:00 AM
Location: 3211, EB II NCSU Centennial Campus
(Visitor parking instructions)
Modern systems embrace a multiagent setting where a system consists of multiple autonomous parties. These individual parties have their own goals and have to achieve them by interacting with each other due to their limited capabilities and resources. Trust provides a basis for effective interaction, helping agents decide which parties to rely upon for taking a particular action. My research aims to (1) build trust models that enable agents to estimate trustworthiness of parties based on (limited) evidence, and (2) develop approaches for agents to make effective predictions and decisions by mining trust relations. In this talk, I will introduce the general trust model, and talk about three applications on social networks. CertProp and Shin are two approaches that estimate trustworthiness of unknown parties by propagating trust through existing trust relations. LocPat is a trust mining framework providing flexible, personalized recommendations based on trust relations. The significance of these approaches is three-fold. My approaches build trust from an individual, ego-centric perspective. They are decentralized approaches that only require a local view of the whole system. They are effective compared to existing approaches.
Chung-Wei Hang is a postdoc in Computer Science department of North Carolina State University. He received his BS and MS of Computer and Information Science from National Chiao Tung University in Taiwan. He received his PhD in Computer Science from North Carolina State University. Chung-Wei's research interests include artificial intelligence, multiagent systems, trust models, recommender systems, social networks, and service-oriented computing.
Host: Peng Ning, Computer Science, NC State University