The Roles of Environmental Noises and Opinion Leaders in Emergency
This paper proposes a dominant-submissive agent model on bounded confidence opinion dynamics under an emergency environment. In the proposed model, environmental noises and opinion leaders are involved in the collective opinion formation. A series of computer simulations demonstrate that environmental noises have a great impact on the collective opinion evolution. The interactions among individuals are strengthened as the variances of the environmental noises increase, and then a global group behavior emerge with a higher probability. On the other hand, the influence of opinion leaders on the collective opinion dynamics is limited. Firstly, when the fraction of opinion leaders is fixed in the social network, the number of agents following the opinion leaders decreases as the variance of the environmental noise exceeds a certain threshold. Secondly, the number of agents following the opinion leaders does not change obviously as the fraction of opinion leaders increases under a constant noisy environment.
KeywordsEnvironmental noises Opinion leaders Emergency Opinion propagation Bounded confidence
Unable to display preview. Download preview PDF.
- 3.Bartolozzi, M., Leinweber, B., Thomas, A.W.: Stochastic Opinion Formation in Scale-Free Networks. Physical Review E 72, 046113 (2005)Google Scholar
- 5.Lambiotte, R., Ausloos, M., Holyst, J.: Majority Model on a network with communities. Phys. Rev. E 75, 030101 (2007)Google Scholar
- 7.Galam, S.: Heterogeneous beliefs, segregation, and extremism in the making of public opinions. Phys. Rev. E 71, 046123 (2005)Google Scholar
- 8.Deffuant, G., Amblard, F., Weisbuch, G., Faure, T.: How can extremism prevail? A study based on the relative agreement interaction model. Journal of Artificial Societies and Social Simulation 5(4), 1–10 (2002)Google Scholar
- 11.Afshar, M., Asadpour, M.: Opinion Formation by Informed Agents. Journal of Artificial Societies and Social Simulation 13, 5 (2010)Google Scholar
- 13.Krause, U.: A discrete nonlinear and non-autonomous model of consensus formation. In: Proc. Commun. Difference Equations, pp. 227–236 (2000)Google Scholar
- 14.Hegselmann, R., Krause, U.: Opinion dynamics and bounded confidence: models, analysis and simulation. Jr. of Art. Soc. and Social Simulation 5, 1–33 (2002)Google Scholar
- 16.Lorenz, J.: Consensus strikes back in the Hegselmann-Krause model of continuous opinion dynamics under bounded confidence. Journal of Artificial Societies and Social Simulation 9, 8 (2006)Google Scholar
- 18.Kou, G., Zhao, Y.Y., Peng, Y., Shi, Y.: Multi-level opinion dynamics under bounded confidence. PLoS One 7(9), e43507 (2012), doi:10.1371/journal.pone.0043507Google Scholar