关键词:信任评估模型; 信任度更新算法; 模糊Petri网; 模糊推理算法
Fuzzy Petri net and its application in Web services trust evaluation
LI Ji, ZHU Xiao-yong
(School of Computer, Chongqing University, Chongqing 400044, China)
Abstract:In order to improve the accuracy of trust evaluation and the success rate of interaction of Web services,this paper proposed a new Web services trust evaluation model WS-TEM based on the fuzzy Petri net. This model gave the fuzzy trust rules of evaluation, based on it, proposed a reasoning algorithm based on the fuzzy Petri net. This model used the knowledge of fuzzy Petri net to represent and run basic algorithm which applied to comprehensive evaluation trust relation of Web services entities by parallel processing of more than one recommended trust. The result of simulative experiment and analysis show that this model on the trust evaluation of Web services becomes more accurate and reliable, consequently the interaction risk is reduced and ensured the success rate of interaction. ......