一个中国科学家合作网的实证分析

研究了由<科学通报>过去20年间发表文章的作者所构建的科学家合作网络.按照统计学方法和基于复杂网络理论的实证分析表明,科学家产量满足幂律分布,而合作规模分布则是指数衰减的.合作网中存在一个明显的最大连通子图,该子图具有高聚类和小世界特性,并呈现社团结构和等级结构.网络的度分布介于指数与幂律之间,近似服从对数正态分布,社团规模分布亦显示出长尾特性.此外,还应用3种不同的指标研究了Hub节点的影响力.

Empirical Analysis of a China Scientists Collaboration Network

This paper studies the scientific collaboration network(SCN) based on the papers published on Chinese Science Bulletin during the past 20 years(1988-2007).According to the statistics and complexity theory,we find that,the productivity of scientists follows a power-law distribution and the distribution of the size of collaboration decays in an exponential way.There is a distinct maximal connected subgraph in the SCN and the subgraph possesses notable clustering and small-world properties,and community and hi...