标题:Detecting malicious behavior and collusion for online rating system
作者:Cao, Liu ;Sun, Yuqing ;Wang, Shaoqing ;Li, Mingzhu
通讯作者:Sun, Yuqing
作者机构:[Cao, Liu ;Sun, Yuqing ;Wang, Shaoqing ] School of Computer Science and Technology, Shandong University, Jinan, China;[Wang, Shaoqing ] Taishan Colleg 更多
会议名称:Joint 15th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, 10th IEEE International Conference on Big Data Science and Engineering and 14th IEEE International Symposium on Parallel and Distributed Processing with Applications, IEEE TrustCom/BigDataSE/ISPA 2016
会议日期:23 August 2016 through 26 August 2016
来源:Proceedings - 15th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, 10th IEEE International Conference on Big Data Science and Engineering and 14th IEEE International Symposium on Parallel and Distributed Processing with Applications, IEEE TrustCom/BigDataSE/ISPA 2016
出版年:2016
页码:1046-1053
DOI:10.1109/TrustCom.2016.0174
摘要:Since the collective ratings and reviews on an online rating system have a high influence on user decisions, there exist more and more fraudulent behaviors, such as 'ballot stuffing' and 'bad-mouthing'. Most of the current methods solve these problems by detecting one or a few malicious patterns. But they cannot solve these patterns simultaneously and cannot solve the case where dominating population on an item is malicious. In this paper, we investigate malicious behaviors and collusion from three aspects: the normal standards are learned from crowd behaviors rather than predefined patterns, a behavior anomaly is considered from both current and historical views, and the negative influence is also taken into account. We propose a set of metrics to comprehensively detect malicious behavior patterns. How much a user is deviated the crowds. The Behavior-Turbulence metric detects how different a user is from his/her historical behaviors, and theUser Behavior Influence metric measures how much negative influence a user may cause. By orchestrating these statistical metrics, different user anomaly behaviors can be recognized. Compared with previous methods, our metrics can not only solve the problem that the major population is malicious, but also collective behavior influence metric k and coherence metric so of a group of people. Our method is verified against some real datasets and the results show that it outperforms the existing models. © 2016 IEEE.
收录类别:EI;SCOPUS
Scopus被引频次:1
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015226195&doi=10.1109%2fTrustCom.2016.0174&partnerID=40&md5=fce56f33c26d7df6aea841a05238f677
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