Reputation-based Trust Framework for Service Oriented Environments

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dc.contributor.authorMalik, Zakien
dc.contributor.committeechairGracanin, Denisen
dc.contributor.committeecochairBouguettaya, Athmanen
dc.contributor.committeememberLu, Chang-Tienen
dc.contributor.committeememberBohner, Shawn A.en
dc.contributor.committeememberBarkhi, Rezaen
dc.contributor.departmentComputer Scienceen
dc.date.accessioned2014-03-14T20:18:25Zen
dc.date.adate2008-12-02en
dc.date.available2014-03-14T20:18:25Zen
dc.date.issued2008-10-24en
dc.date.rdate2008-12-02en
dc.date.sdate2008-11-11en
dc.description.abstractWe investigate the problem of establishing trust in service-oriented environments. We focus on providing a reputation framework that would enable trust-based interactions with and amongst Web services. We define methods for the creation of reputation information, its collection, and assessment that are robust in the face of a variety of attacks. Our framework (denoted RATEWeb) supports a cooperative model in which Web services share their experiences of the service providers with their peers through feedback ratings. The different ratings are aggregated to derive a service provider's reputation. This in turn is used to evaluate trust. For situations where rater feedbacks are scarce, we use statistical forecasting (particularly, a Hidden Markov Model) to ascertain trust. The approaches and techniques developed under the RATEWeb framework facilitate the optimal selection and/or composition of Web services based on service reputations. We conduct an extensive performance study (analytical and experimental) to assess the fairness and accuracy of the proposed techniques.en
dc.description.degreePh. D.en
dc.identifier.otheretd-11112008-115537en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11112008-115537/en
dc.identifier.urihttp://hdl.handle.net/10919/29534en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectTrusten
dc.subjectWeb Servicesen
dc.subjectService-Oriented Environmentsen
dc.subjectReputationen
dc.titleReputation-based Trust Framework for Service Oriented Environmentsen
dc.typeDissertationen
thesis.degree.disciplineComputer Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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