2005/01/29 by Santo Fortunato, Dietrich Stauffer, Fortunato, Santo +1 · 1 citation
Physics and Astronomy · #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #Opinion Dynamics and Social Influence #cond-mat.dis-nn
paper · pdf · doi:10.48550/arxiv.cond-mat/0501730
32 pages including 14 figs. For Springer book of Albeverio, Jentsch and Kantz
arxiv created 2005/01/29 · openalex publication_date 2005/01/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We review the opinion dynamics in the computer models of Deffuant et al. (D), of Krause and Hegselmann (KH), and of Sznajd (S). All these models allow for consensus (one final opinion), polarization (two final opinions), and fragmentation (more than two final opinions), depending on how tolerant people are to different opinions. We then simulate the reactions of people to ex treme events, in that we modify the opinion of an individual and investigate how the dynamics of a consensus model diffuses this perturbation among the other members of a community. It often happens that the original shock induced by the extreme event influences the opinion of a big part of the society.