Research of P2P Trust based on Fuzzy Decision-making

Fuzzy logic offers the ability to handle uncertainty and imprecision effectively, and is therefore ideally suited to reasoning about trust in P2P Environment. A new P2P fuzzy trust model is presented in this paper. Because Trust-based P2P Computing network is very similar to the interpersonal relationship network, this Fuzzy Trust Model includes two phases: Recommendation Trust Phase and Direct Trust Phase. Recommendation Trust Phase mainly focuses on Extraction of Trust Link and Calculation of Recommendation Trust Degree based on Fuzzy Decision-making method. Fuzzy trust evaluation result will be obtained according to various Factor Sets and Evaluation Sets based on Fuzzy Decision-making method. Direct Trust Phase mainly focuses on updating of Direct Trust Degree.