A Rating Dispersion Sensitive Trust Model for P2P Transactions

For the openness, anonymity, and dynamic characters in P2P systems, participants lack trust relationship inference each other in P2P e-commerce communities. A rating dispersion sensitive trust model for P2P transactions is presented. The credibility of global reputation and direct reputation is introduced. The credibility of global reputation is calculated from the recommended peers' number and recommended rating's dispersion. The validity and anti-attack ability are proved by the simulation and analysis. The results of the experiments are compared with EigenRep and shows the sound performance of the model.