Bayesian memory-based reputation system

Weiwei Yuan, Donghai Guan, Sungyoung Lee, Young Koo Lee, Heejo Lee

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Reputation System provides a way to maintain trust through social control by utilizing feedbacks about the service providers' past behaviors. Conventional Memory-based Reputation System (MRS) is one of the most successful mechanisms in terms of accuracy. Though MRS performs well on giving predicted values for service providers offering averaging quality services, our experiments show that MRS performs poor on giving predicted values for service providers offering high and low quality services. We propose a Bayesian Memory-based Reputation System (BMRS) which uses Bayesian Theory to analyze the probability distribution of the predicted valued given by MRS and makes suitable adjustment. The simulation results, which are based on EachMovie dataset, show that our proposed BMRS has higher accuracy than MRS on giving predicted values for service providers offering high and low quality services.

    Original languageEnglish
    Title of host publicationMobiMedia 2007 - Proceedings of the 3rd International Conference on Mobile Multimedia Communications
    PublisherAssociation for Computing Machinery, Inc
    ISBN (Electronic)9789630626705
    DOIs
    Publication statusPublished - 2007 Aug 27
    Event3rd International Conference on Mobile Multimedia Communications, MobiMedia 2007 - Nafpaktos, Greece
    Duration: 2007 Aug 272007 Aug 29

    Publication series

    NameMobiMedia 2007 - Proceedings of the 3rd International Conference on Mobile Multimedia Communications

    Other

    Other3rd International Conference on Mobile Multimedia Communications, MobiMedia 2007
    Country/TerritoryGreece
    CityNafpaktos
    Period07/8/2707/8/29

    Keywords

    • Bayesian Theory
    • Memory-based
    • Reputation System

    ASJC Scopus subject areas

    • Computer Graphics and Computer-Aided Design
    • Computer Networks and Communications

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