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arXiv 1302.3799physics.soc-ph
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攻击下复杂网络中的相关性

Correlations in complex networks under attack

Animesh Srivastava, Bivas Mitra, Niloy Ganguly, Fernando Peruani

摘要:

对于任何初始相关网络,在任何类型的攻击后,其中节点或边缘被删除,我们得到度-度概率矩阵和度分布的一般表达式。我们表明,所提出的分析方法预测正确的拓扑结构的变化后,通过比较不同的攻击策略和强度的理论和模拟的反导系数的演变。我们发现,它是可能的,把一个初始的互补网络到一个互补的,反之亦然,通过微调删除的节点或边缘。另一方面,对于初始不相关的网络,我们发现只有有针对性的边缘去除攻击才能引起这种相关性。

英文摘要:

For any initial correlated network after any kind of attack where either nodes or edges are removed, we obtain general expressions for the degree-degree probability matrix and degree distribution. We show that the proposed analytical approach predicts the correct topological changes after the attack by comparing the evolution of the assortativity coefficient for different attack strategies and intensities in theory and simulations. We find that it is possible to turn an initial assortative network into a disassortative one, and vice versa, by fine-tuning removal of either nodes or edges. For an initial uncorrelated network, on the other hand, we discover that only a targeted edge-removal attack can induce such correlations.

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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