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Network-aware Evaluation Environment for Reputation Systems

Celestini, Alessandro and De Nicola, Rocco and Tiezzi, Francesco Network-aware Evaluation Environment for Reputation Systems. CSA Technical Report #05/2013 IMT Institute for Advanced Studies Lucca

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Parties of reputation systems rate each other and use ratings to compute reputation scores that drive their interactions. When deciding which reputation model to deploy in a network environment, it is important to find the most suitable model and to determine its right initial configuration. This calls for an engineering approach for describing, implementing and evaluating reputation systems while taking into account specific aspects of both the reputation systems and the networked environment where they will run. We present a software tool (NEVER) for network-aware evaluation of reputation systems and their rapid prototyping through experiments performed according to user-specified parameters. To demonstrate effectiveness of NEVER, we analyse reputation models based on the beta distribution and the maximum likelihood estimation.

Item Type: Working Paper (CSA Technical Report)
Uncontrolled Keywords: Reputation systems, Network-awareness, Evaluation tool
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Research Area: Computer Science and Applications
Depositing User: Ms T. Iannizzi
Date Deposited: 19 Mar 2013 08:19
Last Modified: 19 Apr 2013 12:43
URI: http://eprints.imtlucca.it/id/eprint/1537

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