Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Trust and Reputation in Peer-to-Peer Systems

  • Zoran Despotovic
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1225

Synonyms

Feedback systems; Word of mouth

Definition

Trust means reliance on something or someone’s action. As such, it involves risks on the side of the subject of trust, i.e., trustor. Reducing these risks is the main goal of a trust management system. A possible way to do this is through reputation management, i.e., reputation systems.

In a typical large scale online setting, be it on the Web or in P2P networks, it is necessary to learn more about prospective transaction partners prior to engaging in a transaction with them. The size of such systems makes it highly improbable to meet the same partner repeatedly, so own experience is of little use. The types of the performed transactions are often such that well-established forms of quality assurance (e.g., contracts) are highly inefficient. Under such circumstances, reputation systems (“word of mouth” [1]) turn out to be the only viable mechanism to encourage trustworthy behavior and guide people to decide whom to trust and to what...

This is a preview of subscription content, log in to check access.

Recommended Reading

  1. 1.
    Dellarocas C. The digitization of word-of-mouth: promise and challenges of online reputation systems. Manag Sci. 2003;49(10):1407–24.CrossRefGoogle Scholar
  2. 2.
    Resnick P, Zeckhauser R, Friedman E, Kuwabara K. Reputation systems. Commun ACM. 2000;43(12):45–8.CrossRefGoogle Scholar
  3. 3.
    Akerlof G. The market for “lemons”: quality uncertainty and the market mechanism. Quart J Econ. 1970;84(3):488–500.CrossRefGoogle Scholar
  4. 4.
    Richardson M, Agrawal R, Domingos P. Trust management for the semantic web. In: Proceedings of the 2nd International Semantic Web Conference SanibelIsland; 2003. p. 351–368.Google Scholar
  5. 5.
    Kamvar S, Schlosser M, Garcia-Molina H. EigenRep: reputation management in P2P networks. In: Proceedings of the 12th International World Wide Web Conference; 2003. p. 640–651.Google Scholar
  6. 6.
    Xiong L, Liu L. Peertrust: supporting reputation-based trust in peer-to-peer communities. IEEE Trans Knowl Data Eng. 2004;16(7):843–57. Special Issue on Peer-to-Peer Based Data Management.Google Scholar
  7. 7.
    Despotovic Z, Aberer K. Probabilistic prediction of peers performances in P2P networks. Int J Eng Appl Artif Intell. 2005;18(7):771–80. ElsevierCrossRefGoogle Scholar
  8. 8.
    Fudenberg D, Tirole J. Game theory. Cambridge, MA: MIT; 1991.zbMATHGoogle Scholar
  9. 9.
    Axelrod R. The evolution of cooperation. New York: Basic Books; 1984.zbMATHGoogle Scholar
  10. 10.
    Ohtsuki H, Iwasa Y. How should we define goodness? – reputation dynamics in indirect reciprocity. J Theor Biol. 2004;231(1):107–20.MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.NTT DoCoMo Communications Laboratories EuropeMunichGermany

Section editors and affiliations

  • Karl Aberer
    • 1
  1. 1.Distributed Inf. Sys Lab.Inst. for Core Computing Science (IIF), EPFL-IC-IIF-LSIRLausanneSwitzerland