Reputation, Trust and Recommendation Systems in Peer-to-Peer Systems

  • Authors:
  • Boaz Patt-Shamir

  • Affiliations:
  • School of Electrical Engineering, Tel Aviv University, Tel Aviv, Israel 69978

  • Venue:
  • SIROCCO '08 Proceedings of the 15th international colloquium on Structural Information and Communication Complexity
  • Year:
  • 2008

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Abstract

The Internet has brought about the notion of peer-to-peer computing, whose reliance on a central authority (let alone a central server) is minimal. It seems fair to say that one of the Great Promises of the Internet is that such unmoderated direct interaction between users will reduce much of the traditional overhead due to the "man in middle" taking his share: either financially (in the context of e-commerce) or conceptually (in the context of opinion shaping, say). The flip side of this prospect, of course, is the danger that the system will deteriorate into a lawless jungle: some users in a peer-to-peer system, possibly coordinated, might exploit honest users to their advantage, since it appears that there is no effective way to enforce rules in this game.