4个合作-竞争系统的特殊合作性质

Some Special Collaboration Properties of Four Real World Collaboration-competition Networks

简要报道了对9个实际合作网络、25个实际合作-竞争网络的实证研究。其中全部9个实际合作网络和5个实际合作-竞争网络的项目大小遵循单峰分布,度分布与项目度分布遵循幂函数和指数函数之间的所谓"漂移幂律"分布;其余13个实际合作-竞争网络却显示不同的性质,即项目大小分布不是单峰分布,而是和度分布与项目度分布定性相同,都是漂移幂律分布(此外还有7个实际合作-竞争网络不具备这些分布性质,不在本文中讨论)。本文比较详细地介绍其中4个合作-竞争系统(大陆电影网、北京餐馆网、2004年奥运会网、淘宝笔记本电脑销售网)的性质,并且利用本课题组提出的一个合作网演化模型解释了这两类不同性质。

An empirical study was carried out on 9 real world collaboration networks and 25 real world cooperation-competition networks. Among the systems, all 9 real world collaboration networks and 6 real world cooperation-competition networks show a unimodal act-size distribution and the so-called ＂shifted power law＂ distribution for degree and act-degree. The other 14 real world cooperation-competition networks show different features. The actsize distributions are not unimodal; instead, they follow qualitatively the same shifted power law as the degree and act-degree distributions. This article presents the properties （in more details） of four systems （main land movie film network, Beijing restaurant network, 2004 Olympic network, and Tao-Bao notebook computer sale network） as examples, and explains two different kinds of rules by a collaboration network evolution model proposed by this paper.