arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.4913q-bio.PEphysics.bio-phphysics.data-anq-bio.QM
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疾病通过基于个人的模型传播,具有现实的流动模式

Diseases spreading through individual based models with realistic mobility patterns

A. D. Medus, C. O. Dorso

摘要:

基于个体的模型构成了一套广泛应用的工具,用于分析传染病传播中个体异质性的发生率。在这项工作中,我们专注于人类接触的异质性,通过两个主要的基于个人的模型:移动代理和复杂的网络模型。我们引入了一种新的移动代理模型,在该模型中,个人根据截断幂律分布的经验证据,人类的流动性与大小的位移。此外,我们提出了一个过程,以获得一个等效的加权接触网络从以前的移动代理模型,其中的链接的权重被解释为接触概率。通过对等效接触网络的拓扑分析,我们发现小世界特性与主体位移的截断幂律分布有关。最后,我们通过一些传染病传播的数值实验表明这两种方法之间的等价性。

英文摘要:

The individual-based models constitute a set of widely implemented tools to analyze the incidence of individuals heterogeneities in the spread of an infectious disease. In this work we focus our attention on human contacts heterogeneities through two of the main individual-based models: mobile agents and complex networks models. We introduce a novel mobile agents model in which individuals make displacements with sizes according to a truncated power-law distribution based on empirical evidence about human mobility. Besides, we present a procedure to obtain an equivalent weighted contact network from the previous mobile agents model, where the weights of the links are interpreted as contact probabilities. From the topological analysis of the equivalent contact networks we show that small world characteristics are related with truncated power-law distribution for agent displacements. Finally, we show the equivalence between both approaches through some numerical experiments for the spread of an infectious disease.

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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