On the simulation of global reputation systems

Reputation systems evolve as a mechanism to build trust in virtual communities. In this paper we evaluate different metrics for computing reputation in multi-agent systems. We present a formal model for describing metrics in reputation systems and show how different well-known global reputation metr...

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Bibliographic Details
Published inJournal of artificial societies and social simulation Vol. 9; no. 1
Main Authors Schlosser, Andreas, Voss, Marco, Brückner, Lars
Format Journal Article
LanguageEnglish
Published 01.01.2006
Subjects
Agency
Community
Modelling
Opinion
Reputation
Simulation
Threat
Trust
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Summary:Reputation systems evolve as a mechanism to build trust in virtual communities. In this paper we evaluate different metrics for computing reputation in multi-agent systems. We present a formal model for describing metrics in reputation systems and show how different well-known global reputation metrics are expressed by it. Based on the model a generic simulation framework for reputation metrics was implemented. We used our simulation framework to compare different global reputation systems to find their strengths and weaknesses. The strength of a metric is measured by its resistance against different threat-models, i.e. different types of hostile agents. Based on our results we propose a new metric for reputation systems.
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ISSN:1460-7425
1460-7425