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在博弈论的基础上建立一种自我激励的信用系统模型.该模型将整个P2P系统构造成为一个虚拟参与人,让虚拟参与人和普通节点为了自身的最优利益进行博弈,由此得出一个可以满足系统和节点双方利益的博弈均衡,并在此均衡的基础上建立信用系统.在模型中定义了一个贴现因子用于描述节点的贪婪程度,P2P网络中的所有节点都统一描述为贪婪程度不同的理性节点.仿真结果说明该信用系统可以通过节点的私利性激励普通节点为其他节点提供服务.
Based on the game theory, this paper establishes a self-motivated credit system model, which constructs the entire P2P system as a virtual participant, which allows the virtual participants and ordinary nodes to play their own best interests, Which can satisfy the game equilibrium of both system and node, and establish a credit system based on this equilibrium.A model of discount factor is defined in the model to describe the greed degree of nodes, and all nodes in P2P network are described as greediness Different rational nodes.The simulation results show that the credit system can serve ordinary nodes to serve other nodes through self-interest of nodes.