Disassortative mixing in online social networksHai-Bo Hu and Xiao-Fan Wang
Complex Networks and Control Lab, Shanghai Jiao Tong University - Shanghai 200240, China
received 5 November 2008; accepted in final form 9 March 2009; published April 2009
published online 21 April 2009
The conventional wisdom is that social networks exhibit an assortative mixing pattern, whereas biological and technological networks show a disassortative mixing pattern. However, the recent research on the online social networks modifies the widespread belief, and many online social networks show a disassortative or neutral mixing feature. Especially, we found that an online social network, Wealink, underwent a transition from degree assortativity characteristic of real social networks to degree disassortativity characteristic of many online social networks, and the transition can be reasonably elucidated by a simple network model that we propose. The relations among network assortativity, clustering, and modularity are also discussed in the paper.
89.65.-s - Social and economic systems.
87.23.Ge - Dynamics of social systems.
89.75.Hc - Networks and genealogical trees.
© EPLA 2009