Research of trust valuation model in grid environment
网格环境下的信任评估模型研究*

Based on analyses of several typical trust valuation models and corresponding to the two different concepts of trust relationship,this paper analyzed two trust evaluation models.It proued rationality from which the two models exist form the perspectives of trust randomicity and uncertainty and discussed the defect of two models.This paper not only provided a valuable way to study trust valuation in grid vironment but also discussed future research fields of trust evaluation.