The workshop is closed. We thanks all participants, and we hope to involve you in future initiatives. [Alessandro and Vincenza]

Today the ''need for trust'' motto is adopted in many more different scenarios than in the past, ranging from classical security protocols to P2P and social networks, to the plethora of both current Web 2.0 and future Semantic Web applications.

The use of trust in computer science stems from its employment in human interactions, where it allows to cope with uncertainty and with the risk of negative consequences; this is enforced in virtual worlds, due to the lack of both bodily presence of counterparts and personal long-term behavior stability.
Reputation-based trust assessment, moreover, is a growing trend that mimics the human behaviour of assigning trustworthiness based on personal and others' experiences (as in recommendation systems occurs). An additional factor is represented by the decentralization of many computing environments, as peer-to-peer networks, online social networks, multi-agent systems and so forth, where distributed trust assessment is a crucial factor for successful interactions.

This workshop welcomes articles with original research contributions on any topics related to personal, social and economic aspects of trust and reputation systems in distributed and multi-agent systems, including results and research in the fields of computer science, psychology, philosophy, management science and e-commerce.

Submitted papers will be peer reviewed by members of the Program Committee, and will be judged on the basis of their relevance to the workshop topics, clarity of presentation, originality and accuracy of results and proposed solutions.

Topics include, but are not limited to:

1. Trust and reputation models, metrics and assessment
2. Trust and reputation in P2P and social networks
3. Trust and reputation in distributed and multi agents systems
4. Trust and reputation dynamics
5. Trust and reputation robustness: deceptions, threats and attacks analysis, detection and prevention
6. Scalability of trust
7. Trust and privacy: user profiling and modeling, anonymity, identity, accountability, legal aspects
8. Context-Aware trust assessments
9. Real-world applications of trust and reputation: e-commerce, e-government, social science, psychology
10. Integration of conventional and agent-based mechanisms for trust assessment

The workshop is organized by Longheu Alessandro (alessandro.longheu[at]dieei.unict.it) and Vincenza Carchiolo (vincenza.carchiolo[at]dieei.unict.it), working at the Department of Electrical , Electronic and Informatic Engineering (DIEEI), University of Catania.