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arXiv 0811.2349q-bio.PEcond-mat.stat-mech
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多类型网络的异质键渗流及其在传染病动力学中的应用

Heterogeneous Bond Percolation on Multitype Networks with an Application to Epidemic Dynamics

Antoine Allard, Pierre-André Noël, Louis J. Dubé, Babak Pourbohloul

摘要:

近年来,人们对网络在复杂现实世界系统建模中的应用给予了相当大的关注。在涉及网络的许多动力学过程中,传播过程--其中的最终状态可以通过研究底层网络的渗流性质来获得--引起了人们极大的兴趣。在本文中,我们提出了一个键渗流模型的多类型网络与任意联合度分布,允许在边缘占用概率的异质性。如前所述,多类型方法允许许多非平凡的混合模式,如节点之间的重复性和聚类。我们得到了一些有用的统计性质的多类型网络以及一般的相变准则。我们还证明了一些以前的模型的基础上概率生成函数的特殊情况下,所提出的形式主义。我们进一步表明,多类型的方法,通过自然地允许异质性的键占据概率,克服了以前的模型所遇到的一些相关性问题。我们在接触网络流行病学的背景下说明这一点。

英文摘要:

Considerable attention has been paid, in recent years, to the use of networks in modeling complex real-world systems. Among the many dynamical processes involving networks, propagation processes -- in which final state can be obtained by studying the underlying network percolation properties -- have raised formidable interest. In this paper, we present a bond percolation model of multitype networks with an arbitrary joint degree distribution that allows heterogeneity in the edge occupation probability. As previously demonstrated, the multitype approach allows many non-trivial mixing patterns such as assortativity and clustering between nodes. We derive a number of useful statistical properties of multitype networks as well as a general phase transition criterion. We also demonstrate that a number of previous models based on probability generating functions are special cases of the proposed formalism. We further show that the multitype approach, by naturally allowing heterogeneity in the bond occupation probability, overcomes some of the correlation issues encountered by previous models. We illustrate this point in the context of contact network epidemiology.

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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