一种半全局化的P2P信誉度模型

提出了一种新颖的信誉管理机制，首先给出了一套客观的信誉跟踪评价标准，然后根据各个节点的能力与行为表现将它们划分成两类：信誉值和能力均很出众的精英节点，一般的或新加入系统的普通节点。精英节点享有一定特权并组成结构化的网络，普通节点组成无结构的网络。接着用一种半全局化的方法来计算和存储各节点的信誉值。最后，通过实验证明此机制的有效性和健壮性。

Semi-global trust model design for Peer-to-Peer networks

The novel trust model for P2P file sharing systems wasintroduced. First, an objective criterion to compute each peers reputation was gaven. Second, based on their values we divided all the peers into 2 parts: one is super peers who share more resources and service and also been given some privileges; the other is normal peers who act normal or new comers, they construct an unstructured network. Third, a semi-global structure for computing and storing the trust value was described. Finally, the experiments show that the feasibility and robustness of this reputation management system.