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论文类型：会议论文

发表时间：2009-07-14

收录刊物：EI、CPCI-S、Scopus

卷号：2

页面范围：552-560

摘要：We investigate statistical characteristics of an evolving co-citation network, primarily in term of the dynamics of betweenness centrality measures, we generate co-citation network of papers published in journal of Scientometrics. Our study shows that the overall co-citation network is a small-world and scale-free network. The co-citation network has a relatively small number of nodes with high betweenness centrality, most nodes have low betweeness centrality scores. Furthermore, the betweenness centrality distribution of the co-citation network follows segmented Zipf-Pareto distribution. We found a tendency that high betweenness centrality measures tend to reduce over time.