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arXiv 1502.00901physics.soc-phcond-mat.dis-nnq-bio.PE
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评估网络上流行病的节点风险和脆弱性

Assessing node risk and vulnerability in epidemics on networks

Tim Rogers

摘要:

哪些节点最容易受到网络中传染病传播的影响?如果它们是感染源,哪些节点导致大规模疫情爆发的风险最高?在这里,我们将展示如何使用腔方法来回答这些问题。节点的脆弱性和风险的几个奇怪的属性进行了探讨:一些节点比其他人更容易受到较弱的感染,但不太容易受到较强的;一个节点总是更有可能被抓住的爆发比它是开始一个,除非当疾病具有确定性的生命周期;节点风险的排名顺序取决于感染期的分布的细节。

英文摘要:

Which nodes are most vulnerable to an epidemic spreading through a network, and which carry the highest risk of causing a major outbreak if they are the source of the infection? Here we show how these questions can be answered to good approximation using the cavity method. Several curious properties of node vulnerability and risk are explored: some nodes are more vulnerable than others to weaker infections, yet less vulnerable to stronger ones; a node is always more likely to be caught in an outbreak than it is to start one, except when the disease has a deterministic lifetime; the rank order of node risk depends on the details of the distribution of infectious periods.

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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