| 基于交易特征和反馈评价的P2P信任模型 |
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| 引用本文： | 廖列法,张伟楠.基于交易特征和反馈评价的P2P信任模型[J].计算机工程与应用,2014(20):100-104,123. |
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| 作者姓名： | 廖列法 张伟楠 |
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| 作者单位： | 江西理工大学 信息工程学院,江西 赣州,341000 |
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| 基金项目： | 国家自然科学基金(No.71061008)。 |
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| 摘 要： | 提出了一种新的在P2P系统中基于交易特征和反馈评价的信任评估机制。为确定反馈评价的真实性，模型引入了时间衰减函数和事务影响参数，给出了反馈评价的可信度计算方法。实验仿真结果表明，该评估机制能够提高局部声誉和全局声誉的计算准确性，有效地抑制恶意节点。与信任模型PeerTrust和EigenTrust相比，该模型的性能优于其他两者，能够更好地应用于P2P电子商务系统中。
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| 关 键 词： | 对等网络 声誉 信任机制 信任度 时间衰减 |
Trust model of P2P system based on trade characteristics and transaction feedback |
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| LIAO Liefa,ZHANG Weinan.Trust model of P2P system based on trade characteristics and transaction feedback[J].Computer Engineering and Applications,2014(20):100-104,123. |
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| Authors: | LIAO Liefa ZHANG Weinan |
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| Affiliation: | (College of Information Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China) |
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| Abstract: | This paper presents a novel trust evaluation mechanism for P2P system based on the trade characteristics and transaction feedback. In order to evaluate the validity of feedback, this paper adds time-decay factor and transaction factor into P2P trust model, and the model’s calculation method of reliability is also introduced. The simulation experimental results show that the evaluation mechanism can improve calculation accuracy of local reputation and global reputation, and inhibit bad nodes effectively. The performance of this model is superior to PeerTrust and EigenTrust model, the pro-posed trust mechanism can be applied to P2P system effectively. |
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| Keywords: | Peer-to-Peer(P2P)system reputation trust mechanism trust level time decay |
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