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Social ReGreT, a reputation model based on social relations

Social network analysis has been used for a long time by sociologist as a mechanism to infer and explain social behaviours. Analysing social relations between individuals in a society using social network analysis techniques allows to identify a lot of features of that society that can be very valuable in an e-commerce environment. In this paper we describe how these techniques can be used to improve a reputation system and also how this system can be integrated with a negotiation model to increase the succes of negotiations.