arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1010.2160physics.soc-phcs.SIphysics.data-an
收藏

相互依赖网络在目标攻击下的鲁棒性

Robustness of interdependent networks under targeted attack

Xuqing Huang, Jianxi Gao, Sergey V. Buldyrev, Shlomo Havlin, H. Eugene Stanley

摘要:

当相互依赖的网络中发生节点的初始故障时,网络之间的故障级联发生。早期的研究集中在随机初始故障。在这里,我们研究了相互依赖网络的鲁棒性有针对性的攻击高或低度节点。我们介绍了一种通用的技术,并表明,{ \it有针对性的攻击}问题的相互依赖的网络可以映射到{ \it随机攻击}问题的相互依赖的网络转换对。我们发现,当高度连接的节点被保护,并有较低的概率失败,在对比单无标度(SF)网络的渗流阈值$p_c=0$,耦合SF网络是显着更脆弱的$p_c$显着大于零。结果表明,相互依赖的网络是很难保护的策略,如保护的高度节点,已被发现有用的显着提高单个网络的鲁棒性。

英文摘要:

When an initial failure of nodes occurs in interdependent networks, a cascade of failure between the networks occurs. Earlier studies focused on random initial failures. Here we study the robustness of interdependent networks under targeted attack on high or low degree nodes. We introduce a general technique and show that the {\it targeted-attack} problem in interdependent networks can be mapped to the {\it random-attack} problem in a transformed pair of interdependent networks. We find that when the highly connected nodes are protected and have lower probability to fail, in contrast to single scale free (SF) networks where the percolation threshold $p_c=0$, coupled SF networks are significantly more vulnerable with $p_c$ significantly larger than zero. The result implies that interdependent networks are difficult to defend by strategies such as protecting the high degree nodes that have been found useful to significantly improve robustness of single networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑