A model of a trust-based recommendation system on a social network

By Frank Edward Walter, Stefano Battiston, Frank Schweitzer. Autonomous Agents and Multi-Agent Systems, 2006

441 citations recorded by the source corpus.

In this paper, we present a model of a trust-based recommendation system on a social network. The idea of the model is that agents use their social network to reach information and their trust relationships to filter it. We investigate how the dynamics of trust among agents affect the performance of the system by comparing it to a frequency-based recommendation system. Furthermore, we identify the impact of network density, preference heterogeneity among agents, and knowledge sparseness to be crucial factors for the performance of the system. The system self-organises in a state with performance near to the optimum; the performance on the global level is an emergent property of the system, achieved without explicit coordination from the local interactions of agents.

Subfields: Computer Networks and Communications, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/a5d6c2e513b759163058f49c91d13b671a879807

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In Computer Networks and Communications

  1. Yang Guo
  2. Lin-Shan Lee
  3. Hung-yi Lee
  4. Matei Ripeanu
  5. Konstantin Beznosov
  6. Yong Liu
  7. Harald Steck
  8. Xiwang Yang

In Statistical and Nonlinear Physics

  1. Hung-yi Lee
  2. Matei Ripeanu
  3. Konstantin Beznosov
  4. Yong Liu
  5. Harald Steck
  6. Xiwang Yang
  7. Yazan Boshmaf
  8. Sophie Ahrens

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