期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 391, 期 22, 页码 5779-5793出版社
ELSEVIER
DOI: 10.1016/j.physa.2012.06.047
关键词
Voting; PageRank; Opinion formation
资金
- EC FET Open project New tools and algorithms for directed network analysis (NADINE) [288956]
- France-Armenia collaboration grant CNRS/SCS [24943 (IE-017)]
We propose the PageRank model of opinion formation and investigate its rich properties on real directed networks of the Universities of Cambridge and Oxford, LiveJournal, and Twitter. In this model, the opinion formation of linked electors is weighted with their PageRank probability. Such a probability is used by the Google search engine for ranking of web pages. We find that the society elite, corresponding to the top PageRank nodes, can impose its opinion on a significant fraction of the society. However, for a homogeneous distribution of two opinions, there exists a bistability range of opinions which depends on a conformist parameter characterizing the opinion formation. We find that the LiveJournal and Twitter networks have a stronger tendency to a totalitarian opinion formation than the university networks. We also analyze the Sznajd model generalized for scale-free networks with the weighted PageRank vote of electors. (C) 2012 Elsevier B.V. All rights reserved.
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