%0 Journal Article
%T An Evolving Model for Scale-free Collaboration Networks<br>一类无标度合作网络的演化模型
%A ZHANG Zhong-zhi~
%A RONG Li-li~
%A ZHOU Tao~
%A <br>章忠志
%A 荣莉莉
%A 周　涛
%J 系统工程理论与实践
%D 2005
%I 
%X The collaboration networks can be found everywhere in real world.Since the collaboration networks have some particular mechanisms leading to their special topological properties,it is significant to construct a corresponding model.In this paper,we propose an evolving model aiming at a special kind of collaboration networks,of which the act-size is fixed.We prove that the degree distribution obeys power-law form with the exponent adjustable between 2 and 3.Also,we obtain the relation expression of vertex degree and its clustering coefficient.In addition,we prove that the increasing tendency of average path length is a little slower than the logarithm of network size.Further more,the simulation results are given out,which are in agreement with the theoretic calculations.
%K complex networks
%K collaboration networks
%K complex systems
%K scale-free
%K disordered systems<br>复杂网络
%K 合作网络
%K 复杂系统
%K 无标度
%K 无序系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=962324E222C1AC1D&jid=1D057D9E7CAD6BEE9FA97306E08E48D3&aid=F61EB1E895A39414&yid=2DD7160C83D0ACED&vid=C5154311167311FE&iid=708DD6B15D2464E8&sid=E514EE58E0E50ECF&eid=BFE7933E5EEA150D&journal_id=1000-6788&journal_name=系统工程理论与实践&referenced_num=5&reference_num=17