Abstract: This paper proposes an Agent-based subjective trust coordination model based on the essence of subjective trust, and analyzes the essence of subjective trust coordination. The membership degree of the fuzzy set theory is introduced to descript subjective trust quantitatively by trust vectors, and how to create the fuzzy trust model is solved. 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.

Key words: Fuzzy clustering; Trust class; Trust management model; Subjective trust; Trust coordination

摘要： 从主观信任的本质出发，提出了基于Agent 的主观信任协作模型，分析了主体信任协作关系的本质；引入模糊集合理论的隶属度概念，以信任向量的形式对主观信任进行定量的描述，解决了主观信任的建模问题；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。

关键词: 信任类型；信任管理模型；主观信任；信任协作