A game theory-based trust measurement model for social networks.

Yingjie Wang,Yang Gao,Guisheng Yin,Zhipeng Cai,Xiangrong Tong,Qilong Han

doi:10.1186/s40649-016-0027-x

Abstract

BackgroundIn social networks, trust is a complex social network. Participants in online social networks want to share information and experiences with as many reliable users as possible. However, the modeling of trust is complicated and application dependent. Modeling trust needs to consider interaction history, recommendation, user behaviors and so on. Therefore, modeling trust is an important focus for online social networks.MethodsWe propose a game theory-based trust measurement model for social networks. The trust degree is calculated from three aspects, service reliability, feedback effectiveness, recommendation credibility, to get more accurate result. In addition, to alleviate the free-riding problem, we propose a game theory-based punishment mechanism for specific trust and global trust, respectively.Results and conclusionsWe prove that the proposed trust measurement model is effective. The free-riding problem can be resolved effectively through adding the proposed punishment mechanism.

Highlights

In social networks, trust is a complex social network
We propose punishment mechanisms for specific trust and global trust, respectively, which is different from the existing works where statistic methods are commonly used
The establishment of trust relationship is a complex progressive process depending on interaction history, trust recommendation, trust management and so on

Summary

Introduction

Trust is a complex social network. Participants in online social networks want to share information and experiences with as many reliable users as possible. Methods: We propose a game theory-based trust measurement model for social networks. The trust degree is calculated from three aspects, service reliability, feedback effectiveness, recommendation credibility, to get more accurate result. To alleviate the free-riding problem, we propose a game theory-based punishment mechanism for specific trust and global trust, respectively. Results and conclusions: We prove that the proposed trust measurement model is effective. With the current popularity of online social networks, more and more information is distributed through social network services [2]. Modeling trust is an important focus for online social networks [9,10,11]

Objectives

Conclusion