Identifying the Role of Common Interests in Online User Trust Formation.

Despite enormous recent efforts in detecting the mechanism of the social relation formation in online social systems, the underlying rules between the common interests and social relations are still under dispute. Do online users befriend others who have similar tastes, or do their tastes become mor...

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Main Authors: Lei Ji, Jian-Guo Liu, Lei Hou, Qiang Guo
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4498922?pdf=render
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author Lei Ji
Jian-Guo Liu
Lei Hou
Qiang Guo
author_facet Lei Ji
Jian-Guo Liu
Lei Hou
Qiang Guo
author_sort Lei Ji
collection DOAJ
description Despite enormous recent efforts in detecting the mechanism of the social relation formation in online social systems, the underlying rules between the common interests and social relations are still under dispute. Do online users befriend others who have similar tastes, or do their tastes become more similar after they become friends? In this paper, we investigate the correlation between online user trust formation and their common interests, measured by the overlap rate ρ and taste similarity θ respectively. The trust relation creation time is set as the zero timestamp. The statistical results before and after the trust formation for an online network, namely Epinions, show that, the overlap rate ρ increases greatly before the trust formation, while it would increase smoothly after the creation of the trust relation. Comparing with the empirical results, two null models are presented by shuffling the temporal behaviors of online users, which suggests that the accumulation of the common interests can result in the trust formation. Furthermore, we investigate the taste similarity θ of the common interests, which can reflect the users' preference on their common interests. The empirical results show that the taste similarity θ is rapidly increased around the day when users trust the others. That is, the similar tastes on the common interests among users lead to the trust formation. Finally, we report that the user degree can also influence the effect of the taste similarity θ on user trust formation. This work may shed some light for deeply understanding the evolution mechanism of the online social systems.
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spelling doaj.art-90923664b2444f31998380190b590b3c2022-12-22T00:37:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01107e012110510.1371/journal.pone.0121105Identifying the Role of Common Interests in Online User Trust Formation.Lei JiJian-Guo LiuLei HouQiang GuoDespite enormous recent efforts in detecting the mechanism of the social relation formation in online social systems, the underlying rules between the common interests and social relations are still under dispute. Do online users befriend others who have similar tastes, or do their tastes become more similar after they become friends? In this paper, we investigate the correlation between online user trust formation and their common interests, measured by the overlap rate ρ and taste similarity θ respectively. The trust relation creation time is set as the zero timestamp. The statistical results before and after the trust formation for an online network, namely Epinions, show that, the overlap rate ρ increases greatly before the trust formation, while it would increase smoothly after the creation of the trust relation. Comparing with the empirical results, two null models are presented by shuffling the temporal behaviors of online users, which suggests that the accumulation of the common interests can result in the trust formation. Furthermore, we investigate the taste similarity θ of the common interests, which can reflect the users' preference on their common interests. The empirical results show that the taste similarity θ is rapidly increased around the day when users trust the others. That is, the similar tastes on the common interests among users lead to the trust formation. Finally, we report that the user degree can also influence the effect of the taste similarity θ on user trust formation. This work may shed some light for deeply understanding the evolution mechanism of the online social systems.http://europepmc.org/articles/PMC4498922?pdf=render
spellingShingle Lei Ji
Jian-Guo Liu
Lei Hou
Qiang Guo
Identifying the Role of Common Interests in Online User Trust Formation.
PLoS ONE
title Identifying the Role of Common Interests in Online User Trust Formation.
title_full Identifying the Role of Common Interests in Online User Trust Formation.
title_fullStr Identifying the Role of Common Interests in Online User Trust Formation.
title_full_unstemmed Identifying the Role of Common Interests in Online User Trust Formation.
title_short Identifying the Role of Common Interests in Online User Trust Formation.
title_sort identifying the role of common interests in online user trust formation
url http://europepmc.org/articles/PMC4498922?pdf=render
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