| P2P网络中基于评价相似度的信任模型研究 |
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| 引用本文： | 宗丽臻,谢圣献,李俊青.P2P网络中基于评价相似度的信任模型研究[J].计算机工程与设计,2011,32(1):32-35. |
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| 作者姓名： | 宗丽臻 谢圣献 李俊青 |
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| 作者单位： | 聊城大学,计算机学院,山东,聊城,252059 |
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| 基金项目： | 国家自然科学基金项目(60874075); 山东省教育厅科技发展计划基金项目(J08LJ20、J09LG29); 山东省软科学基金项目(2009REB125) |
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| 摘 要： | 由于P2P网络的开放性、匿名性等特点,节点间的信任关系很难通过传统的信任机制来建立,为了解决该问题,对已有研究进行了详细分析,并提出了一种基于评价相似度的P2P网络信任模型。该模型引入了时间衰减函数和事务影响因子,提高了信任度计算的准确性,引入了评价相似度的概念,用于量化和评价推荐的可信程度。分析及仿真实验结果表明,该模型可以有效地识别恶意节点,提高P2P网络的服务质量。
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| 关 键 词： | P2P网络 信任模型 评价相似度 时间衰减 事务影响子 |
Trust model based on similarity of evaluation in P2P networks |
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| ZONG Li-zhen,XIE Sheng-xian,LI Jun-qing.Trust model based on similarity of evaluation in P2P networks[J].Computer Engineering and Design,2011,32(1):32-35. |
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| Authors: | ZONG Li-zhen XIE Sheng-xian LI Jun-qing |
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| Affiliation: | ZONG Li-zhen,XIE Sheng-xian,LI Jun-qing(School of Computer Science and Technology,Liaocheng University,Liaocheng 252059,China) |
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| Abstract: | The feature of P2P network such as anonymity and open nature makes that it's hard to establish the trust relationship between peers with the traditional trust mechanism.To solve this problem,the existing researches are analyzed in detail and a trust model based on the similarity of evaluation in P2P networks is proposed.In this model,time-decay factor and transaction factor are considered to enhanced the veracity of the computing of the trust degree.Meanwhile,the similarity of evaluation is proposed to quan... |
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| Keywords: | P2P network trust model similarity of evaluation time-decay transaction factor |
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