Opinion dynamics on directed small-world networks

Jiang, L. -L.; Hua, D. -Y.; Zhu, J. -F.; Wang, Bing-Hong; Zhou, Tao

doi:10.1140/epjb/e2008-00342-3

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Journal article

Opinion dynamics on directed small-world networks

Jiang, L. -L. Department of Modern Physics, University of Science and Technology of China, Hefei, China
Hua, D. -Y. Department of Physics, Ningbo University, Ningbo Zhejiang, China
Zhu, J. -F. Department of Modern Physics, University of Science and Technology of China, Hefei, China
Wang, Bing-Hong Department of Modern Physics, University of Science and Technology of China, Hefei, China
Zhou, Tao Department of Modern Physics, University of Science and Technology of China, Hefei, China - Department of Physics, University of Fribourg, Switzerland

18.09.2008

Published in:

The European Physical Journal B. - 2008, vol. 65, no. 2, p. 251-255

English We investigate the self-affirmation effect on formation of public opinion in a directed small-world social network. The system presents a non-equilibrium phase transition from a consensus state to a disordered state with coexistence of opinions. The dynamical behaviors are very sensitive to the density of long-range-directed interactions and the strength of self-affirmation. When the long-range-directed interactions are sparse and individual generally does not insist on his/her opinion, the system will display a continuous phase transition, in the opposite case with strong self-affirmation and dense long-range-directed interactions, the system does not display a phase transition. Between those two extreme cases, the system undergoes a discontinuous phase transition.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language