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arXiv 1507.04554physics.soc-phcs.SI
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关联网络中的药物驱动传染病传播

Traffic-driven epidemic spreading in correlated networks

Han-Xin Yang, Ming Tang, Ying-Cheng Lai

摘要:

尽管人们在复杂网络中的流量动力学和传染病传播方面做了大量的工作,但在{ \em相关}网络上流量驱动的传染病传播问题还没有得到解决。有趣的是,我们发现,流行病的阈值,一个基本量背后的传播动力学,表现出非单调的行为,它可以最小化的一些临界值的传播系数,一个参数表征网络的相关性。为了理解这种现象,我们使用基于度的平均场论来计算相关网络的流量驱动的流行病阈值。该理论预测阈值与分组生成速率和介数矩阵的最大特征值成反比。我们得到理论和数值之间的一致性。我们的研究结果可能会提供洞察到控制/利用现实世界的传染病传播动态驱动的交通流量的重要问题。

英文摘要:

In spite of the extensive previous efforts on traffic dynamics and epidemic spreading in complex networks, the problem of traffic-driven epidemic spreading on {\em correlated} networks has not been addressed. Interestingly, we find that the epidemic threshold, a fundamental quantity underlying the spreading dynamics, exhibits a non-monotonic behavior in that it can be minimized for some critical value of the assortativity coefficient, a parameter characterizing the network correlation. To understand this phenomenon, we use the degree-based mean-field theory to calculate the traffic-driven epidemic threshold for correlated networks. The theory predicts that the threshold is inversely proportional to the packet-generation rate and the largest eigenvalue of the betweenness matrix. We obtain consistency between theory and numerics. Our results may provide insights into the important problem of controlling/harnessing real-world epidemic spreading dynamics driven by traffic flows.

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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