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Analysis of metapopulation epidemic process on arbitrary networks *

机译:任意网络上的种群流行过程的分析 *

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Epidemic process on networks is considered. The system is discribed as a metapopulation network in which a node represents subpopulation (e.g., city or school) and is connected to other nodes via undirected links. Particles represent the subject of infection (e.g., individuals) and interact with each other within nodes while migrating from nodes to nodes in the manner of random diffusion. The nonlinear dependence of contact rate within a node on its population size is introduced, according to the recent finding based on emprical phone-call data. The impacts of the nonlinear dependence are investigated for three aspects of epidemic process: epidemic threshold, infection size at stationary state, and transient dynamics.
机译:考虑网络上的流行过程。该系统被描述为一个元人口网络,其中一个节点代表子人口(例如,城市或学校),并通过无方向链接连接到其他节点。粒子代表感染的对象(例如,个体),并且在节点内以随机扩散的方式从节点迁移到节点时彼此交互。根据基于经验电话数据的最新发现,介绍了节点内接触率与其人口规模之间的非线性关系。从流行过程的三个方面研究了非线性依赖性的影响:流行阈值,稳态感染大小和瞬态动力学。

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