Enhancing robustness of coupled networks under targeted recoveries.

Abstract:

:Coupled networks are extremely fragile because a node failure of a network would trigger a cascade of failures on the entire system. Existing studies mainly focused on the cascading failures and the robustness of coupled networks when the networks suffer from attacks. In reality, it is necessary to recover the damaged networks, and there are cascading failures in recovery processes. In this study, firstly, we analyze the cascading failures of coupled networks during recoveries. Then, a recovery robustness index is presented for evaluating the resilience of coupled networks to cascading failures in the recovery processes. Finally, we propose a technique aiming at protecting several influential nodes for enhancing robustness of coupled networks under the recoveries, and adopt six strategies based on the potential knowledge of network centrality to find the influential nodes. Experiments on three coupling networks demonstrate that with a small number of influential nodes protected, the robustness of coupled networks under the recoveries can be greatly enhanced.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Gong M,Ma L,Cai Q,Jiao L

doi

10.1038/srep08439

subject

Has Abstract

pub_date

2015-02-13 00:00:00

pages

8439

issn

2045-2322

pii

srep08439

journal_volume

5

pub_type

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