期刊名称:Journal of Artificial Societies and Social Simulation
印刷版ISSN:1460-7425
出版年度:2006
卷号:9
期号:1
页码:1-23
出版社:University of Surrey, Department of Sociology
摘要: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.