A trust model based on fuzzy set in peer-to-peer network

Fuzzy set has become the focus method of trust model.Based on the existing research,this trust model give a description of the trust with fuzzy set theory,and trust assessment is separated two aspects which are subjective trust assessment and objective environment impact.In order to adapt to the dynamic of credibility,we use close function which from fuzzy set and distributed storage method in trust update model.Simulation experiment results show that this model is effective and rational.