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Cascading failures often occur in congested complex networks. Cascading failures can be expressed as a three-phase process: generation, diffusion, and dissipation of congestion. Different from the betweenness centrality, a congestion function is proposed to represent the extent of congestion on a given node. Inspired by the restart process of a node, we introduce the concept of “delay time,” during...
Internet is a complex network with the characteristic of self-organized criticality. The cascading dynamics of Internet are presented and two reasons are pointed out, which may cause cascading failures. Different from betweenness centrality, a congestion function to represent the extent of congestion is proposed. By introducing the concept of "delay time", the correlation between permanent...
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