Identifying online user reputation in terms of user preference

doi:10.1016/j.physa.2017.12.020

CORC > 上海财经大学 > 上海财经大学

	Identifying online user reputation in terms of user preference
	Dai, Lu 1; Guo, Qiang 1; Liu, Xiao-Lu 4; Liu, Jian-Guo 2; Zhang, Yi-Cheng 3
刊名	PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
	2018-03-15
卷号	494 页码:403-409
关键词	User-object bipartite networks Reputation evaluation Ranking method User preference
ISSN号	0378-4371
DOI	10.1016/j.physa.2017.12.020
英文摘要	Identifying online user reputation is significant for online social systems. In this paper, taking into account the preference physics of online user collective behaviors, we present an improved group-based rating method for ranking online user reputation based on the user preference (PGR). All the ratings given by each specific user are mapped to the same rating criteria. By grouping users according to their mapped ratings, the online user reputation is calculated based on the corresponding group sizes. Results for MovieLens and Netflix data sets show that the AUC values of the PGR method can reach 0.9842 (0.9493) and 0.9995 (0.9987) for malicious (random) spammers, respectively, outperforming the results generated by the traditional group-based method, which indicates that the online preference plays an important role for measuring user reputation. (C) 2017 Elsevier B.V. All rights reserved.
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000424176800036
内容类型	期刊论文
源URL	[http://10.2.47.112/handle/2XS4QKH4/665]
专题	上海财经大学
通讯作者	Liu, Jian-Guo
作者单位	1.Univ Shanghai Sci & Technol, Res Ctr Complex Syst Sci, Shanghai 200093, Peoples R China; 2.Shanghai Univ Finance & Econ, Data Sci & Cloud Serv Res Ctr, Shanghai 200433, Peoples R China; 3.Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland; 4.Fudan Univ, Sch Econ, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Dai, Lu,Guo, Qiang,Liu, Xiao-Lu,et al. Identifying online user reputation in terms of user preference[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2018,494:403-409.
APA	Dai, Lu,Guo, Qiang,Liu, Xiao-Lu,Liu, Jian-Guo,&Zhang, Yi-Cheng.(2018).Identifying online user reputation in terms of user preference.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,494,403-409.
MLA	Dai, Lu,et al."Identifying online user reputation in terms of user preference".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 494(2018):403-409.