A belief-theoretic reputation estimation model for multi-context communities

Ebrahim Bagheri, M. Barouni-Ebrahimi, Reza Zafarani, Ali A. Ghorbani

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

5 Scopus citations

Abstract

Online communities have grown to be an alternative form of communication for many people. This widespread growth and influence of the members of these communities in shaping the desire, line of thought and behavior of each other requires subtle mechanisms that are often easily attainable in face-to-face communications. In this paper, we address a special case of the trust-making process, where a person needs to make a judgment about the propositions, capabilities, or truthfulness of another community member where none of the community members has had any previous interaction with. Our proposed model estimates the possible reputation of a given identity in a new context by observing his/her behavior in the perspective of the other contexts of the community. This is most important for websites such as amazon.com, ebay.com, epinions.com, etc whose activities encompass multiple domains. Our proposed model employs Dempster-Shafer based valuation networks to represent a global reputation structure and performs a belief propagation technique to infer contextual reputation. The evaluation of the model on a dataset collected from epinions.com shows promising results.

Original languageEnglish (US)
Title of host publicationAdvances in Artificial Intelligence - 21st Conference of the Canadian Society for Computational Studies of Intelligence, Canadian AI 2008, Proceedings
Pages48-59
Number of pages12
DOIs
StatePublished - Jun 9 2008
Externally publishedYes
Event21st Conference of the Canadian Society for Computational Studies of Intelligence, Canadian AI 2008 - Windsor, Canada
Duration: May 28 2008May 30 2008

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5032 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other21st Conference of the Canadian Society for Computational Studies of Intelligence, Canadian AI 2008
CountryCanada
CityWindsor
Period5/28/085/30/08

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Bagheri, E., Barouni-Ebrahimi, M., Zafarani, R., & Ghorbani, A. A. (2008). A belief-theoretic reputation estimation model for multi-context communities. In Advances in Artificial Intelligence - 21st Conference of the Canadian Society for Computational Studies of Intelligence, Canadian AI 2008, Proceedings (pp. 48-59). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5032 LNAI). https://doi.org/10.1007/978-3-540-68825-9_5