i TRUST IN AGENT SOCIETIES (TRUST-2011) 14th Edition Held at: Autonomous Agents & Multi-Agent Systems Conference AAMAS 2011 May 2nd, 2011 Taipei, TAIWAN DESCRIPTION OF THE WORKSHOP Trust and Trustworthiness (along with related concepts such as privacy, reputation, security, control) have become major research topics in computer science. The multiagent community potentially has a lot to offer, but several conceptual and technical problems must be addressed before it can make practical contributions. Although there is increasing interest in this area within the AAMAS community, this area will need continued support as an affiliated workshop in which are explored new directions and inter-disciplinary interactions so that the AAMAS community maintains a venue for research into trust, reputation, and related topics. Trust is important in applications such as human-computer interaction to model the relationship between users and their personal assistants. Trust is more than secure communication, e.g., via public key cryptography techniques. For example, the reliability of information about the status of your trade partner has little to do with secure communication. With the growing impact of electronic societies, trust, privacy, and identity become more and more important. Different kinds of trust are needed: trust in the environment and in the infrastructure (the socio-technical system) including trust in your personal agent and in other mediating agents; trust in the potential partners; trust in the warrantors and authorities (if any). Another growing trend is the use of reputation mechanisms, and in particular the interesting link between trust and reputation. Many computational and theoretical models and approaches to reputation have been developed in the last few years. In all these cases, electronic personas many be created in many different forums (ecommerce, social networks, blogs, etc). Also the identity and associated trustworthiness must be ascertained for reliable interactions and transactions. Trust appears to be foundational for the notion of "agency" and for its defining relation of acting "on behalf of". It is also critical for modeling and supporting groups and teams, organizations, co-