A Model for evaluating trust between users in social networks based on subjective logic

Mahdi Zohreie, H. Shakeri
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引用次数: 2

Abstract

In recent years, social networks developed in terms of diversities, capabilities and users. Therefore, researchers in different fields have been attracted to these kind of networks. Trust management between users in these kind of networks is one of the most important research topics. In this article a new model for evaluating trust between users in social networks based on subjective logic is presented. Firstly, trust and confidence are calculated with regard to the criteria and categories have been considered. Then, these calculated opinions are converted to subjective logic model and finally these opinions will be combined to obtain general trust. For accepting or rejecting friend requests a threshold is considered. For evaluating the proposed model, a certain type of Leave-One-Out validation technique is used. The proposed model is evaluated by different kinds of evaluation methods. Precision and Recall metrics that have been used for this model, represent a significant improvement in this method over the other methods.
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基于主观逻辑的社交网络用户信任评价模型
近年来,社交网络在多样性、功能和用户方面发展迅速。因此,这类网络吸引了不同领域的研究人员。在这类网络中,用户之间的信任管理是一个重要的研究课题。本文提出了一种基于主观逻辑的社交网络用户信任评价模型。首先,根据考虑的标准和类别计算信任和信心。然后,将这些计算出的意见转换为主观逻辑模型,最后将这些意见组合起来,得到普遍信任。对于接受或拒绝好友请求,要考虑一个阈值。为了评估所提出的模型,使用了某种类型的留一验证技术。采用不同的评价方法对模型进行了评价。该模型所使用的精确度和召回率指标代表了该方法相对于其他方法的显著改进。
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