Evaluating Group Formation in Virtual Communities

doi:10.1109/JAS.2020.1003237

CORC > 自动化研究所 > 中国科学院自动化研究所 > 学术期刊 > IEEE/CAA Journal of Automatica Sinica

	Evaluating Group Formation in Virtual Communities
	Giancarlo Fortino; Antonio Liotta; Fabrizio Messina; Domenico Rosaci; Giuseppe M. L. Sarnè
刊名	IEEE/CAA Journal of Automatica Sinica
	2020
卷号	7 期号:4 页码:1003-1015
关键词	Group formation helpfulness online social communities reputation trust
ISSN号	2329-9266
DOI	10.1109/JAS.2020.1003237
英文摘要	In this paper, we are interested in answering the following research question: “Is it possible to form effective groups in virtual communities by exploiting trust information without significant overhead, similarly to real user communities?” In order to answer this question, instead of adopting the largely used approach of exploiting the opinions provided by all the users of the community (called global reputation), we propose to use a particular form of reputation, called local reputation. We also propose an algorithm for group formation able to implement the proposed procedure to form effective groups in virtual communities. Another interesting question is how to measure the effectiveness of groups in virtual communities. To this aim we introduce the $G_k$ index in a measure of the effectiveness of the group formation. We tested our algorithm by realizing some experimental trials on real data from the real world EPINIONS and CIAO communities, showing the significant advantages of our procedure w.r.t. another prominent approach based on traditional global reputation.
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/43008]
专题	自动化研究所_学术期刊_IEEE/CAA Journal of Automatica Sinica
推荐引用方式 GB/T 7714	Giancarlo Fortino,Antonio Liotta,Fabrizio Messina,et al. Evaluating Group Formation in Virtual Communities[J]. IEEE/CAA Journal of Automatica Sinica,2020,7(4):1003-1015.
APA	Giancarlo Fortino,Antonio Liotta,Fabrizio Messina,Domenico Rosaci,&Giuseppe M. L. Sarnè.(2020).Evaluating Group Formation in Virtual Communities.IEEE/CAA Journal of Automatica Sinica,7(4),1003-1015.
MLA	Giancarlo Fortino,et al."Evaluating Group Formation in Virtual Communities".IEEE/CAA Journal of Automatica Sinica 7.4(2020):1003-1015.