关键词: 公共危机事件, 异质性, 元胞自动机, SEIR模型

Abstract:

Under the background of public crisis, rumors spread rapidly through network and communication channels, disrupting social order and social stability. In order to control the spread of rumors, this paper studies the process and law of rumor-refuting information diffusion from the perspective of information synergy between groups. Based on the SEIR model, considering the influence of individual heterogeneity on information diffusion, the rumor-refuting information diffusion model is constructed by using heterogeneous cellular automata. It finds the following conclusion：The information exchange strategy has a significant impact on the information diffusion effect; the information removal rate is negatively correlated with the information diffusion effect; the distribution type of the initial rumor-refuting information disseminator determines the final information diffusion effect.

Key words: public crisis event, heterogeneity, cellular automaton, SEIR model