A Trustworthy Group Identifying Trust Metric for P2P Service Sharing Economy Based on Personal Social Network of Users
ZHU WenqiangSchool of Software and Communication Engineering, Jiangxi University of Finance and Economics, Nanchang 330013, Jiangxi, China
With the quick growth of sharing economy, service sharing becomes a popular phenomenon in daily lives. However, some service providers give exaggerated information about their services on the Peer-to-Peer (P2P) service sharing platforms to get more profits. How to identify a reliable service provider becomes a difficult challenge for users. In this paper, we propose a trust-worthy group trust metric for P2P service sharing (TMPSS) economy based on personal social network (PSN) of users. Deriving from Advogato group trust metric, it considers factors such as social circle similarity, preference similarity, interaction degree, ranks the reliable nodes in a target user’s PSN, outputs an ordered set of reliable nodes, and prevents unreliable nodes from access PSN of honest users. Experimental results show that TMPSS has advantages over existing representative methods because it finds more reliable nodes, and counts against malicious nodes’ attacks more effectively, and it is suitable for mobile transaction circumstances.
Key words:service sharing economy; P2P service sharing; trustworthy group identifying; personal social network
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