Localized attacks on spatially embedded networks with dependencies.
Localized attacks on spatially embedded networks with dependencies.
复制标题
对具有依赖关系的空间嵌入式网络的局部攻击。
DOI：
10.1038/srep08934
复制
发表时间：
2015-03-11
影响因子：
4.6
通讯作者：
Havlin S
中科院分区：
文献类型：
--
作者：
Berezin Y;Bashan A;Danziger MM;Li D;Havlin S
许多真实的世界复杂系统，如关键基础设施网络，都是嵌入空间的，它们的组成部分可能相互依赖才能发挥作用。它们还容易受到恶意攻击或自然灾害造成的地理上局部的损害。在这里，我们研究了一个一般模型的空间嵌入式网络的依赖关系下本地化的攻击。我们开发了一种理论和数值方法来描述和预测本地化攻击的影响空间嵌入式系统的依赖关系。令人惊讶的是，我们发现，一个本地化的攻击可以造成更大的损害比一个等效的随机攻击。此外，我们发现，对于一个广泛的参数范围内，系统似乎是稳定的，实际上是亚稳态。尽管对随机故障（甚至是有限部分的随机故障）是鲁棒的，但是如果受到大于与系统大小无关的临界大小（即，零分数），出现级联故障，导致整个系统崩溃。我们的研究结果表明，具有依赖关系的空间嵌入式网络系统的本地化攻击的潜在高风险，并可能是有用的设计更具弹性的系统。
Many real world complex systems such as critical infrastructure networks are embedded in space and their components may depend on one another to function. They are also susceptible to geographically localized damage caused by malicious attacks or natural disasters. Here, we study a general model of spatially embedded networks with dependencies under localized attacks. We develop a theoretical and numerical approach to describe and predict the effects of localized attacks on spatially embedded systems with dependencies. Surprisingly, we find that a localized attack can cause substantially more damage than an equivalent random attack. Furthermore, we find that for a broad range of parameters, systems which appear stable are in fact metastable. Though robust to random failures—even of finite fraction—if subjected to a localized attack larger than a critical size which is independent of the system size (i.e., a zero fraction), a cascading failure emerges which leads to complete system collapse. Our results demonstrate the potential high risk of localized attacks on spatially embedded network systems with dependencies and may be useful for designing more resilient systems.
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影响因子：
19.6
作者：
Li Daqing;Kosmas Kosmidis;Shlomo Havlin
通讯作者：
Shlomo Havlin
影响因子：
19.6
作者：
Bashan, Amir;Berezin, Yehiel;Havlin, Shlomo
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
Lai, YC
影响因子：
1.6
作者：
Bashan, Amir;Havlin, Shlomo
通讯作者：
Havlin, Shlomo