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OTM Confederated International Conferences "On the Move to Meaningful Internet Systems"

OTM 2004: On the Move to Meaningful Internet Systems 2004: CoopIS, DOA, and ODBASE pp 840–858Cite as

Paradigms for Decentralized Social Filtering Exploiting Trust Network Structure

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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 3291))

Abstract

Recommender systems, notably collaborative and hybrid information filtering approaches, vitally depend on neighborhood formation, i.e., selecting small subsets of most relevant peers from which to receive personal product recommendations. However, common similarity-based neighborhood forming techniques imply various drawbacks, rendering the conception of decentralized recommender systems virtually impossible. We advocate trust metrics and trust-driven neighborhood formation as an appropriate surrogate, and outline various additional benefits of harnessing trust networks for recommendation generation purposes. Moreover, we present an implementation of one suchlike trust-based recommender and perform empirical analysis to underpin its fitness when coupled with an intelligent, content-based filter.

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Author information

Authors and Affiliations

  1. Institut für Informatik, Group DBIS, Universität Freiburg, Germany

    Cai-Nicolas Ziegler & Georg Lausen

Authors
  1. Cai-Nicolas Ziegler
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  2. Georg Lausen
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Editor information

Editors and Affiliations

  1. STARLab, Vrije Universiteit Brussel (VUB), Bldg G/10, Pleinlaan 2, 1050, Brussels, Belgium

    Robert Meersman

  2. School of Computer Science and Information Technology, RMIT University, Bld 10.10, 376-392 Swanston Street, VIC 3001, Melbourne, Australia

    Zahir Tari

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Ziegler, CN., Lausen, G. (2004). Paradigms for Decentralized Social Filtering Exploiting Trust Network Structure. In: Meersman, R., Tari, Z. (eds) On the Move to Meaningful Internet Systems 2004: CoopIS, DOA, and ODBASE. OTM 2004. Lecture Notes in Computer Science, vol 3291. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30469-2_2

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  • DOI: https://doi.org/10.1007/978-3-540-30469-2_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-23662-7

  • Online ISBN: 978-3-540-30469-2

  • eBook Packages: Springer Book Archive

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