一种基于Vague集的P2P网格主观信任模型

A Vague set-based peer-to-peer subjective trust model

在诸如文件共享等无中心的P2P环境下,资源共享是用户自愿的行为,由于用户不为自身的行为承担任何法律责任,因而很难通过传统的信任机制来建立用户之间的信任,现有的模型不能很好的解决信任的主观性表述问题.针对该问题,参考社会学的人际关系模型和Bayesian网络信任模型,在Vague集合理论基础上,提出了一种基于推荐的主观信任管理模型,用于量化和评估节点的可信度,给出了模型的数学表述和计算方法.最后通过实例验证了模型的可行性.

For most peer-to-peer file-swapping applications, sharing is a volunteer action and peers are not responsible for their irresponsible bartering history. Therefore, it is difficult to establish the trust relationship among users with traditional trust mechanism. Current P2P trust models could not describe the subjectivity of trust. Referring to social people trust relationship models and Bayesian networks-based trust model, we propose a subjective trust model based on Vague set theory to quantify and evaluate the trustworthiness of peers, which include a mathematical description and calculation. Experiments prove the feasibility of the model through an example.