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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title A Model of a Trust-based Recommendation System in a Social Network
Organization Unit
Authors
  • Stefano Battiston
  • Frank Schweitzer
  • Frank E Walter
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Autonomous agents and multi-agent systems
Publisher Springer
Geographical Reach international
ISSN 1387-2532
Volume 16
Number 1
Page Range 57 - 74
Date 2008
Abstract Text 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.
Free access at Official URL
Digital Object Identifier 10.1007/s10458-007-9021-x
Other Identification Number merlin-id:10152
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