Based on the study of existing trust models, this paper proposes a trust model based on node service attributes in a grid environment. In this model, triangular fuzzy numbers are introduced to describe trust relationships, and the attribute preference differences of each node are distinguished by configuring attribute lists and weight vectors. Fuzzy numbers are combined with the TOPSIS method to make trust decisions more reasonable and accurate. Example analysis shows that the model can make reasonable trust decisions when node preferences are different.
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