Peer to peer trust model is used in the authorization system, and the trust relationship among entities in grid environment is assessed with trust degree.

系统采用平等信任模型，通过信任度评估网格实体之间的信任关系。

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Detailed research works have been done on the above issues. This thesis introduces a super-peer P2P network model based on semantics and trust (STS_P2P).

针对上述问题，本文进行了深入的研究，提出一种基于语义和信任的超节点P 2 P网络模型(STS_P2P)。

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