摘要翻译:
我们研究了一种疾病在最近引入的结构化无标度网络上的传播。通过数值模拟分析了SIS模型和SIR模型。我们的结果表明,当网络的连通性涨落无界时,流行病阈值是否存在强烈地依赖于受感染个体的初始密度和所考虑的流行病模型的类型。为了解释观察到的行为,提供了分析论据。我们得出结论,这种网络的特殊拓扑特征和小世界性质的缺乏决定了流行病传播的动力学。
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英文标题:
《Disease Spreading in Structured Scale-Free Networks》
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作者:
Yamir Moreno and Alexei Vazquez
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最新提交年份:
2002
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Other Condensed Matter 其他凝聚态物质
分类描述:Work in condensed matter that does not fit into the other cond-mat classifications
在不适合其他cond-mat分类的凝聚态物质中工作
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一级分类:Quantitative Biology 数量生物学
二级分类:Other Quantitative Biology 其他定量生物学
分类描述:Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要:
We study the spreading of a disease on top of structured scale-free networks recently introduced. By means of numerical simulations we analyze the SIS and the SIR models. Our results show that when the connectivity fluctuations of the network are unbounded whether the epidemic threshold exists strongly depends on the initial density of infected individuals and the type of epidemiological model considered. Analytical arguments are provided in order to account for the observed behavior. We conclude that the peculiar topological features of this network and the absence of small-world properties determine the dynamics of epidemic spreading.
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PDF链接:
https://arxiv.org/pdf/cond-mat/0210362