

FOLLOWUS
College of Computer Science and Technology, Jilin University, Changchun 130012, China
School of Computer Technology and Engineering, Changchun Institute of Technology, Changchun 130012, China
School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China
Key Laboratory of Symbolic Computation and Knowledge Engineering, Ministry of Education, Changchun 130012, China
Guangxi Key Laboratory of Trusted Software, Guilin University of Electronic Technology, Guilin 541004, China
[ "Xin WANG, E-mail:xinwangjlu@gmail.com" ]
[ "Ying WANG, wangying2010@jlu.edu.cn" ]
Received:17 June 2016,
Revised:2017-11-;1,
Published:2017-10
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Xin WANG, Ying WANG, Jian-hua GUO. Building trust networks in the absence of trust relations[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(10): 1591-1600.
Xin WANG, Ying WANG, Jian-hua GUO. Building trust networks in the absence of trust relations[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(10): 1591-1600. DOI: 10.1631/FITEE.1601341.
由于用户信任关系具有一定稀疏性和动态性,准确预测在线社交媒体中的信任关系变得较为困难;此外,大多数社交媒体平台都没有提供明确的信任关系。这些因素使得预测信任关系并构建信任网络具有一定挑战性。首先,验证了利用稀疏学习模型能够较好实现信任关系预测;然后,提出一个新颖框架bTrust,不使用任何信任关系,仅仅利用交互数据和同质性效应构建信任网络;最后,在Epinions和Ciao两个真实数据集上验证了bTrust框架的有效性,表明交互行为和同质性效应在构建信任网络中的重要性。
User-specified trust relations are often very sparse and dynamic
making them difficult to accurately predict from online social media. In addition
trust relations are usually unavailable for most social media platforms. These issues pose a great challenge for predicting trust relations and further building trust networks. In this study
we investigate whether we can predict trust relations via a sparse learning model
and propose to build a trust network without trust relations using only pervasively available interaction data and homophily effect in an online world. In particular
we analyze the reliability of predicting trust relations by interaction behaviors
and provide a principled way to mathematically incorporate interaction behaviors and homophily effect in a novel framework
bTrust. Results of experiments on real-world datasets from Epinions and Ciao demonstrated the effectiveness of the proposed framework. Further experiments were conducted to understand the importance of interaction behaviors and homophily effect in building trust networks.
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