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A threshold model of social contagion process for evacuation decision making

机译:疏散决策的社会传染过程阈值模型

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摘要

Individual evacuation decisions are often characterized by the influence of one's social network. In this paper a threshold model of social contagion, originally proposed in the network science literature, is presented to characterize this social influence in the evacuation decision making process. Initiated by a single agent, the condition of a cascade when a portion of the population decides to evacuate has been derived from the model. Simulation models are also developed to investigate the effects of community mixing patterns and the initial seed on cascade propagation and the effect of previous time-steps considered by the agents and the strength of ties on average cascade size. Insights related to social influence include the significant role of mixing patterns among communities in the network and the role of the initial seed on cascade propagation. Specifically, faster propagation of warning is observed in community networks with greater inter-community connections.
机译:个人疏散决策通常以一个人的社交网络的影响为特征。本文提出了一种在网络科学文献中最初提出的社会传染阈值模型,以表征这种社会影响在疏散决策过程中的作用。由单个代理启动,当一部分人口决定撤离时的级联条件已从模型中得出。还开发了仿真模型,以研究群落混合模式和初始种子对级联繁殖的影响,以及由代理商考虑的先前时间步长的影响以及平均级联大小的纽带强度。与社会影响有关的见解包括网络中社区之间混合模式的重要作用以及初始种子在级联传播中的作用。具体而言,在社区间联系更多的社区网络中,警告传播速度更快。

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