ISSN 1000-1239 CN 11-1777/TP

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朱峻茂1 杨寿保1 樊建平2 陈明宇2   

  1. 1(中国科学技术大学计算机科学技术系 合肥 230026) 2(中国科学院计算技术研究所 北京 100080) (
  • 出版日期: 2005-05-15

A Grid & P2P Trust Model Based on Recommendation Evidence Reasoning

Zhu Junmao1, Yang Shoubao1, Fan Jianping2, and Chen Mingyu2   

  1. 1(Department of Computer Science and Technology, University of Science and Techn ology of China, Hefei 230026) 2(Institute of Computing Technology, Chinese Acad emy of Sciences, Beijing 100080)
  • Online: 2005-05-15

摘要: 在Grid与P2P混合计算环境(Grid & P2P)中,Grid节点提供有QoS保证的服务,而P2P节点的 计算资源属于自主贡献资源,不提供QoS保证,用户不为自己的行为承担任何责任,因此节 点间的信任关系很难通过传统的信任机制来建立.参考社会学的人际关系信任模型,通过在G rid & P2P中建立信任推荐机制,并利用D-S理论对推荐证据进行综合处理来解决该问题.分 析及仿真实验说明,基于推荐证据推理的信任模型可以简单有效地解决Grid & P2P中的信任 问题.

关键词: 网格计算, 对等网络计算, 信任, 推荐, 证据推理

Abstract: Under mixed computing environment of grid and P2P(Grid & P2P), grid nodes provide the service with QoS guarantee. However, sharing computing resources of P2P no des is the user's volunteer action without QoS guarantee. The user is not respon sible for his actions. Therefore it's difficult to establish the trust relations hip among users with traditional trust mechanism. Referring to social people tru st relationship models, a grid & P2P trust model based on recommendation evidenc e reasoning is designed to solve the problem by building a recommendation mechan ism in Grid & P2P and integrating the recommendation evidence with the D-S theor y. Theoretical analysis and simulations prove that the model can tackle the trus t problem under Grid & P2P in a simple and efficient way.

Key words: grid computing, P2P computing, trust, recommendation, evidence reasoning