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摘要
針對P2P模式下個人圖書館共享中的激勵問題,提出了一種在線時間感知的P2P網絡動態(tài)信任模型,該模型結合直接信任、推薦信任以及在線時間相似度三個參數對節(jié)點進行綜合評價,并在信任值計算和更新中引入調節(jié)因子。另外,設計了一種新的信任值存儲結構,并提出了一種較合理的時間衰減函數。分析及仿真實驗表明,該模型可以有效地提高圖書館系統(tǒng)P2P網絡的服務質量。
This paper introduces a novel dynamic on-line time sensitive Peer-to-Peer network trust model. Three parameters are considered concurrently in this model, i.e., the direct trust, the recommendation trust, and the on-line time similarity. The adjustment factor is introduced in the trust value computation and update function. In addition, a novel record structure for the trust value is designed, and a well-designed time decaying function is developed as well. Experiments show that our model is better than the trust model without the consideration of on-line time similarity, and can improve the quality of service in P2P networks effectively.
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