Effect of the missing nodes in a bidirectional network

Complex networks have attracted studies from various fields of science due to their relevance in many real systems. As not all nodes are measured in real-systems, this paper explores the effect of the missing nodes on the observed nodes of a bidirectional network with Gaussian noises. Here, it is shown that the collective effect of the missing nodes on the observed nodes may be viewed as a colored noise with exponentially decaying time correlations.

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