PHYSICA A2018

PHYSICA A2018
点击量:130    日期:2018-05-15 22:30:31

Title: Efficient disintegration strategy in directed networks based on tabu search

Authors: Ye Deng, Jun Wu Yu Xiao, Ya-Peng Li

Journal: Physica A


Abstract: The study of network disintegration, including controlling disease spread and destroying terrorist organizations, has wide application scenarios and attracts many researchers. In this paper, we concentrate on the network disintegration problem with heterogeneous disintegration cost, where the disintegration cost to eliminate each node might be non-identical. We first put forward a disin- tegration cost model and an optimization model for disintegration strategy. Then, we analyze the hub strategy, leaf strategy, and the average degree strategy to investigate the nodes tendency of the optimal disintegration strategy. Numerical experiments in three synthetic networks and real-world networks indicate that the disintegration effect of hub strategy drops gradually when the disintegra- tion cost changes from homogeneity to heterogeneity. For the situation of strong heterogeneity of disintegration cost of each node, average degree strategy achieves the maximum disintegration effect gradually. Also, taking another perspective, average degree strategy might enlighten efficient solutions to protect critical infrastructure through strengthening the nodes which are chosen by the average degree strategy.


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