文章基本信息

标题：Activation Regimes in Opinion Dynamics: Comparing Asynchronous Updating Schemes
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作者：Meysam Alizadeh ; Claudio Cioffi-Revilla
期刊名称：Journal of Artificial Societies and Social Simulation
印刷版ISSN：1460-7425
出版年度：2015
卷号：18
期号：3
页码：1-17
DOI：10.18564/jasss.2733
出版社：University of Surrey, Department of Sociology
摘要：Empirical evidences have supported the large heterogeneity in the timing of individuals' activities. Moreover, computational analysis of the agent-based models has shown the importance of the activation regimes. In this paper, we apply four different asynchronous updating schemes including random, uniform, and two state-driven Poisson updating schemes on an agent-based opinion dynamics model. We compare the effect of these activation regimes by measuring the appropriate opinion clustering statistics and also the number of emergent extremists. The results exhibit both qualitative and quantitative difference between different activation regimes which in some cases are counterintuitive. In particular, we find that exposing the radical/moderate agents to more encounters decreases/increases the average number of extremists compared to other types of activation regimes. The results also show that no specific updating scheme can always outperform the others in reaching to consensus.
关键词：Opinion Dynamics; Activation Regime; Extremism; Opinion Clusters