期刊
CHAOS SOLITONS & FRACTALS
卷 91, 期 -, 页码 695-701出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chaos.2016.08.007
关键词
Cascading failure; Node weight; Betweenness; Robustness
资金
- National Natural Science Foundation of China [61673096, 71501035]
- Fundamental Research Funds for the Central Universities [140604005]
- Program for New Century Excellent Talents in University [NCET-12-0100]
- Ministry of Education [16YJC630118]
- National Natural Science Foundation of Liaoning Province [2015020073]
- Fundamental Research Funds of Northeastern University [22114001]
Applying the mechanism of the preferential selection of the flow destination, we develop a new method to quantify the initial load on an edge, of which the flow is transported along the path with the shortest edge weight between two nodes. Considering the node weight, we propose a cascading model on the edge and investigate cascading dynamics induced by the removal of the edge with the largest load. We perform simulated attacks on four types of constructed networks and two actual networks and observe an interesting and counterintuitive phenomenon of the cascading spreading, i.e., gradually improving the capacity of nodes does not lead to the monotonous increase in the robustness of these networks against cascading failures. The non monotonous behavior of cascading dynamics is well explained by the analysis on a simple graph. We additionally study the effect of the parameter of the node weight on cascading dynamics and evaluate the network robustness by a new metric. (C) 2016 Elsevier Ltd. All rights reserved.
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