Mechanizing Social Trust-Aware Recommenders with T-index Augmented Trustworthiness

Soude Fazeli, Alireza Zarghami, Nima Dokoohaki, Mihhail Matskin

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    5 Citations (Scopus)
    25 Downloads (Pure)


    Social Networks have dominated growth and popularity of the Web to an extent which has never been witnessed before. Such popularity puts forward issue of trust to the participants of Social Networks. Collaborative Filtering Recommenders have been among many systems which have begun taking full advantage of Social Trust phenomena for generating more accurate predictions. For analyzing the evolution of constructed networks of trust, we utilize Collaborative Filtering enhanced with T-index as an estimate of a user’s trustworthiness to identify and select neighbors in an effective manner. Our empirical evaluation demonstrates how T-index improves the Trust Network structure by generating connections to more trustworthy users. We also show that exploiting T-index results in better prediction accuracy and coverage of recommendations collected along few edges that connect users on a network.
    Original languageEnglish
    Title of host publicationTrust, Privacy and Security in Digital Business
    Subtitle of host publication7th International Conference, TrustBus 2010, Bilbao, Spain, August 30-31, 2010. Proceedings
    EditorsSokratis Katsikas, Javier Lopez, Miguel Soriano
    Place of PublicationBerlin, Heidelberg
    Number of pages12
    ISBN (Electronic)978-3-642-15152-1
    ISBN (Print)978-3-642-15151-4
    Publication statusPublished - 31 Aug 2010
    Event7th International Conference on Trust, Privacy and Security in Digital Business, TrustBus 2010 - Bilbao, Spain
    Duration: 30 Aug 201031 Aug 2010
    Conference number: 7

    Publication series

    NameLecture Notes in Computer Science
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349


    Conference7th International Conference on Trust, Privacy and Security in Digital Business, TrustBus 2010
    Abbreviated titleTrustBus


    • METIS-271089
    • IR-73927
    • Recommendation
    • Trust Networks
    • EWI-18644
    • Social Trust
    • Social Networks
    • Ontological modeling
    • Performance
    • Collaborative Filtering


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