具有安全性的合同网模型

在多Agent系统中，Agent之间的动态合作及有效的任务分配是非常关键的问题，在分析现有合同网模型的基础上，引入范例推理来确定合适的投标竞争者；并给出合同网模型的Agent结构图和Agent在投标和评标决策过程中的策略；同时分析了多agent系统安全问题，利用反抵赖协议，给出了一个具有高安全性的合同网模型协商框架。以解决多Agent系统中分布式合作求解问题和任务分配，缩小问题竞争者范围，降低了Agent之间的协同时间和通信负载，提高了工作效率；同时能够防止协作Agent反悔，保证Agent协作过程的信息安全。

Contract Net Model of Security

Based on the analysis of the current contract net model,this paper describes a task allocation protocol in a multi-agent system .The negotiation model is the Contract Net Protocol based on Case-Based Reasoning, agent selection and task selection policies are improved, it can decrease the scope of competitors and communication load on task negotiation, make a distinct improvement to the efficiency. And a new multi-agent architecture for Contract Net Model is proposed in this paper. To make highly secure,a non-repudiation protocol which implements both encryption and digital signature, is also discussed and implemented.