The effect of randomness for dependency map on the robustness of interdependent lattices.

The effect of randomness for dependency map on the robustness of interdependent lattices.
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DOI:
10.1063/1.4939984
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发表时间:
2016-01
期刊:
Chaos (Woodbury, N.Y.)
影响因子:
--
通讯作者:
Yang Y
Yang Y
中科院分区:
其他
文献类型:
--
作者:
Yuan J;Li L;Peng H;Kurths J;Xiao J;Yang Y

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具有相同依赖映射的相互依赖网络的渗透遵循与单个网络完全相同的二阶相变,而随机依赖网络的渗透遵循一阶相变。在现实网络中,网络之间的依赖关系既不是完全相同的,也不是完全随机的。因此,本文研究了依赖映射的随机性对依赖格网络鲁棒性的影响。我们引入近似熵(ApEn)作为依赖映射随机性的度量。我们发现,在临界ApEnc下,渗流是连续的,但对于较大的ApEnc,它是一个一阶过渡。随着ApEn的增加,pc增加,直到ApEn达到,然后基本保持不变。随着ApEn的增大,系统的时间尺度呈现出丰富的性质。我们的研究结果表明,随机性是导致空间相互依赖网络级联失效的重要因素之一。
The percolation for interdependent networks with identical dependency map follows a second-order phase transition which is exactly the same with percolation on a single network, while percolation for random dependency follows a first-order phase transition. In real networks, the dependency relations between networks are neither identical nor completely random. Thus in this paper, we study the influence of randomness for dependency maps on the robustness of interdependent lattice networks. We introduce approximate entropy(ApEn) as the measure of randomness of the dependency maps. We find that there is critical ApEnc below which the percolation is continuous, but for larger ApEn, it is a first-order transition. With the increment of ApEn, the pc increases until ApEn reaching and then remains almost constant. The time scale of the system shows rich properties as ApEn increases. Our results uncover that randomness is one of the important factors that lead to cascading failures of spatially interdependent networks.
对具有依赖关系的空间嵌入式网络的局部攻击。
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