Computing trusted authority scores in peer-to-peer web search networks

Josiane Xavier Parreira, Debora Donato, Carlos Castillo, Gerhard Weikum

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

10 Citations (Scopus)

Abstract

Peer-to-peer (P2P) networks have received great attention for sharing and searching information in large user communities. The open and anonymous nature of P2P networks is one of its main strengths, but it also opens doors to manipulation of the information and of the quality ratings. In our previous work (J. X. Parreira, D. Donato, S. Michel and G. Weikum in VLDB 2006) we presented the JXP algorithm for distributed computing PageRank scores for information units (Web pages, sites, peers, social groups, etc.) within a link- or endorsement-based graph structure. The algorithm builds on local authority computations and bilateral peer meetings with exchanges of small data structures that are relevant for gradually learning about global properties and eventually converging towards global authority rankings. In the current paper we address the important issue of cheating peers that attempt to distort the global authority values, by providing manipulated data during the peer meetings. Our approach to this problem enhances JXP with statistical techniques for detecting suspicious behavior. Our method, coined Trust JXP, is again completely decentralized, and we demonstrate its viability and robustness in experiments with real Web data.

Original languageEnglish
Title of host publicationAIRWeb 2007 - Proceedings of the 3rd International Workshop on Adversarial Information Retrieval on the Web
Pages73-80
Number of pages8
DOIs
Publication statusPublished - 31 Oct 2007
EventAIRWeb 2007 - 3rd International Workshop on Adversarial Information Retrieval on the Web - Banff, AB, Canada
Duration: 8 May 20078 May 2007

Publication series

NameACM International Conference Proceeding Series
Volume215

Other

OtherAIRWeb 2007 - 3rd International Workshop on Adversarial Information Retrieval on the Web
CountryCanada
CityBanff, AB
Period8/5/078/5/07

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Keywords

  • Decentralized PageRank
  • P2P networks
  • Trust

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

Cite this

Parreira, J. X., Donato, D., Castillo, C., & Weikum, G. (2007). Computing trusted authority scores in peer-to-peer web search networks. In AIRWeb 2007 - Proceedings of the 3rd International Workshop on Adversarial Information Retrieval on the Web (pp. 73-80). (ACM International Conference Proceeding Series; Vol. 215). https://doi.org/10.1145/1244408.1244422