5 years ago

Correlated network of networks enhances robustness against catastrophic failures.

Hernán A. Makse, Byungjoon Min, Muhua Zheng

Networks in nature rarely function in isolation but instead interact with one another with a form of network of networks (NoN). Network of networks with interdependency between distinct networks contains instabilities of abrupt collapse related to the global rule of activation. As a remedy of the collapse instability, here we investigate a model of correlated NoN and find that the collapse instabilities can be removed with a specific pattern of correlated connectivity. We find that when hubs provide majority of interconnections and interconnections are convergent, a system of networks becomes stable systematically. Our study identifies a stable structure of correlated NoN against catastrophic failures. Our result further suggests a plausible way to enhance network robustness by manipulating connection patterns, along with other methods such as controlling the state of node based on local rule.

Publisher URL: http://arxiv.org/abs/1711.05317

DOI: arXiv:1711.05317v1

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