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
Publication statusPublished - 2007 Aug 27
Event3rd International Conference on Mobile Multimedia Communications, MobiMedia 2007 - Nafpaktos, Greece
Duration: 2007 Aug 272007 Aug 29

Other

Other3rd International Conference on Mobile Multimedia Communications, MobiMedia 2007
CountryGreece
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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