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dc.contributor.authorTang, Jie
dc.contributor.authorSeuken, Sven
dc.contributor.authorParkes, David C.
dc.date.accessioned2012-06-22T21:34:54Z
dc.date.issued2010
dc.identifier.citationTang, Jie, Sven Seuken, and David C. Parkes. 2010. Hybrid transitive trust mechanisms. In Proceedings of the 9th International Conference on Autonomous Agents and Multiagent Systems, Vol. 1, May 10-14, 2010, Toronto, Ontario, Canada, 233-240. Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems.en_US
dc.identifier.isbn978-0-9826571-1-9en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:8919527
dc.description.abstractEstablishing trust amongst agents is of central importance to the development of well-functioning multi-agent systems. For example, the anonymity of transactions on the Internet can lead to inefficiencies; e.g., a seller on eBay failing to ship a good as promised, or a user free-riding on a file-sharing network. Trust (or reputation) mechanisms can help by aggregating and sharing trust information between agents. Unfortunately these mechanisms can often be manipulated by strategic agents. Existing mechanisms are either very robust to manipulation (i.e., manipulations are not beneficial for strategic agents), or they are very informative (i.e., good at aggregating trust data), but never both. This paper explores this trade-off between these competing desiderata. First, we introduce a metric to evaluate the informativeness of existing trust mechanisms. We then show analytically that trust mechanisms can be combined to generate new hybrid mechanisms with intermediate robustness properties. We establish through simulation that hybrid mechanisms can achieve higher overall efficiency in environments with risky transactions and mixtures of agent types (some cooperative, some malicious, and some strategic) than any previously known mechanism.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherInternational Foundation for Autonomous Agents and Multiagent Systemsen_US
dc.relation.hasversionhttp://dl.acm.org/citation.cfm?id=1838239en_US
dash.licenseOAP
dc.subjectalgorithmsen_US
dc.subjectdesignen_US
dc.subjecteconomicsen_US
dc.subjecttrusten_US
dc.subjectreputationen_US
dc.subjectmechanism designen_US
dc.subjectinformativenessen_US
dc.titleHybrid Transitive Trust Mechanismsen_US
dc.typeJournal Articleen_US
dc.description.versionAuthor's Originalen_US
dc.relation.journalProceedings of the 9th International Conference on Autonomous Agents and Multiagent Systemsen_US
dash.depositing.authorParkes, David C.
dc.date.available2012-06-22T21:34:54Z
dash.contributor.affiliatedParkes, David


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