Based on the theory of fuzzy clustering and subjective trust coordination model, the paper proposes dynamic definition of trust class, which provides the basis of trust evaluation between entities.

结合主观信任协作模型，引入模糊聚类理论，提出了基于模糊聚类的信任类型动态定义机制，为各主体之间的信任评估提供了依据。

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The fuzzy clustering analytical method based on fuzzy equivalent relation has been described. The principle, model and procedure of this fuzzy clustering analytical method are illustrated.

阐述了基于模糊等价关系的模糊聚类分析方法的原理和模型，以及模糊聚类分析方法的步骤。

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The premise structure of fuzzy model is confirmed by the improved fuzzy clustering, and fuzzy relation matrix of fuzzy model is confirmed by orthogonal least square.

通过改进模糊聚类方法确定模糊模型的前件结构，并对模糊推理关系矩阵进行正交最小二乘估计。

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