中国物理B ›› 2004, Vol. 13 ›› Issue (3): 273-278.doi: 10.1088/1009-1963/13/3/001
• GENERAL • 下一篇
黄壮雄, 王欣然, 朱涵
Huang Zhuang-Xiong (黄壮雄), Wang Xin-Ran (王欣然), Zhu Han (朱涵)
摘要: 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 neighbouring regions, a disassortative one for low degrees and a neutral one for high degrees. The average degree of the neighbours of a randomly picked node is expected to diverge in the limit of infinite network size. As a 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.
中图分类号: (Networks and genealogical trees)