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physics.soc-ph2011★ 66 cited
Emergence of scale-free leadership structure in social recommender systems
Tao Zhou, Matus Medo, Giulio Cimini +2
The study of the organization of social networks is important for understanding of opinion formation, rumor spreading, and the emergence of trends and fashion. This paper reports e…
physics.soc-ph2011★ 11 cited
Self-organization in social tagging systems
Chuang Liu, Chi Ho Yeung, Zi-Ke Zhang
Individuals often imitate each other to fall into the typical group, leading to a self-organized state of typical behaviors in a community. In this paper, we model self-organizatio…