Collaborative reputation mechanisms for electronic marketplaces
Decision Support Systems - Special issue for business to business electronic commerce, issues and solutions
A logic for uncertain probabilities
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
Detecting deception in reputation management
AAMAS '03 Proceedings of the second international joint conference on Autonomous agents and multiagent systems
TRAVOS: Trust and Reputation in the Context of Inaccurate Information Sources
Autonomous Agents and Multi-Agent Systems
An integrated trust and reputation model for open multi-agent systems
Autonomous Agents and Multi-Agent Systems
Rumours and reputation: evaluating multi-dimensional trust within a decentralised reputation system
Proceedings of the 6th international joint conference on Autonomous agents and multiagent systems
Sequential decision making with untrustworthy service providers
Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems - Volume 2
Comparing trust mechanisms for monitoring aggregator nodes in sensor networks
Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 2
Maintenance-based trust for multi-agent systems
Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 2
A probabilistic approach for maintaining trust based on evidence
Journal of Artificial Intelligence Research
Reputation Based Dynamic Responsibility to Agent Assignement for Critical Infrastructure
WI-IAT '11 Proceedings of the 2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Volume 02
A trust and reputation model for supply chain management
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Three
PRep: a probabilistic reputation model for biased societies
Proceedings of the 11th International Conference on Autonomous Agents and Multiagent Systems - Volume 1
A sociologically inspired heuristic for optimization algorithms: A case study on ant systems
Expert Systems with Applications: An International Journal
Manipulating convention emergence using influencer agents
Autonomous Agents and Multi-Agent Systems
Improving trust modeling through the limit of advisor network size and use of referrals
Electronic Commerce Research and Applications
A comprehensive approach to trust management
Proceedings of the 2013 international conference on Autonomous agents and multi-agent systems
Bayesian Inference in Trust Networks
ACM Transactions on Management Information Systems (TMIS)
Hi-index | 0.00 |
This paper concerns the problem of agent trust in an electronic market place. We maintain that agent trust involves making decisions under uncertainty and therefore the phenomenon should be modelled probabilistically. We therefore propose a probabilistic framework that models agent interactions as a Hidden Markov Model (HMM). The observations of the HMM are the interaction outcomes and the hidden state is the underlying probability of a good outcome. The task of deciding whether to interact with another agent reduces to probabilistic inference of the current state of that agent given all previous interaction outcomes. The model is extended to include a probabilistic reputation system which involves agents gathering opinions about other agents and fusing them with their own beliefs. Our system is fully probabilistic and hence delivers the following improvements with respect to previous work: (a) the model assumptions are faithfully translated into algorithms; our system is optimal under those assumptions. (b) It can account for agents whose behaviour is not static with time (c) it can estimate the rate with which an agent's behaviour changes. The system is shown to significantly outperform previous state-of-the-art methods in several numerical experiments.