Pair Correlations in Scale-Free Networks

Details Pair Correlations in Scale-Free Networks Pair Correlations in Scale-Free Networks

2004-08-03

arxiv.org/abs/cond-mat/0408063v1

Chinese Physics, 13 (3) 273-278 (2004)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1088/1009-1963/13/3/001

Correlation between nodes is found to be a common and important property in many complex networks. Here we investigate degree correlations of the Barabasi-Albert (BA) Scale-Free model with both analytical results and simulations, and find two neighboring regions, a disassortative one for low degrees and a neutral one for high degrees. The average degree of the neighbors of a randomly picked node is expected to diverge in the limit of infinite network size. As an generalization of the concept of correlation, we also study the correlations of other scalar properties, including age and clustering coefficient. Finally we propose a correlation measurement in bipartite networks.

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