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arXiv 1810.04880physics.soc-phcs.SI
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网络定位不受突发感染的影响

Network localization is unalterable by infections in bursts

Qiang Liu, Piet Van Mieghem

摘要:

为了揭示疾病局部化的现象,我们研究了一个突发的易感-感染-易感(SIS)模型,并在平均场近似下对该模型进行了分析。在突发SIS模型中,被感染节点周期性地感染所有邻居节点,并且近阈值稳态流行率是非常数的,最大化因子等于网络邻接矩阵的最大特征值$λ_1$.我们发现,最大近阈值流行率的突发SIS过程中的本地化网络趋于零,即使$λ_1$发散的热力学极限,这表明,爆发的感染不能把本地化的传播到一个离域的传播。我们的结果进行了评估合成和真实的网络。

英文摘要:

To shed light on the disease localization phenomenon, we study a bursty susceptible-infected-susceptible (SIS) model and analyze the model under the mean-field approximation. In the bursty SIS model, the infected nodes infect all their neighbors periodically, and the near-threshold steady-state prevalence is non-constant and maximized by a factor equal to the largest eigenvalue $λ_1$ of the adjacency matrix of the network. We show that the maximum near-threshold prevalence of the bursty SIS process on a localized network tends to zero even if $λ_1$ diverges in the thermodynamic limit, which indicates that the burst of infection cannot turn a localized spreading into a delocalized spreading. Our result is evaluated both on synthetic and real networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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