复杂网络无尺度特征及其演化机理研究-JournalofNortheastern.PDF

第32 卷第5期 东 北 大 学 学 报 ( 自 然 科 学 版 ) Vol32, No. 5 2 0 1 1 年 5 月 Journal of Northeastern U niversit ( Natural Science) M a 2 0 1 1 葛 新, 赵 海, 张 君, 韩 旭 ( , 110819) : ( GP Model) , , , , , GP , : ; ; ; : TP 393. 0 1 : A : 20 11) Investigating the ScaleFree Feature and Evolution Mechanism of Complex Networks GE X in, ZHA O H ai, ZH AN G Jun, H A N X u ( School of Information Science Engineering, Northeastern Universit , Shen ang 110819, China. Corresponding author : GE Xin, Email: gex inoo @ gmail. com) Abstract: A general netw ork model w ith grow th and preference features is proposed according to basic mechanisms for evolution in complex netw orks. T he model was anal zed via continuum d namic theor . Networks generated according to a GP model follow ed pow er law distribution based on maximum likelihood theor , explaining the cause of formation of the power law phenomenon. In addition, the exponential cutoff degree distribution in netw orks and the evolution of Internet topolog are researched using a GP model, anal zing the long term evolution of the Internet and the behavioral feature of nodes. ey words: complex netw orks; evolution of the Internet; scalefree; mechanism of grow th and preference , , [ 1] 20 2 1 , Barabasi Jeong[ 2] , , , BA , ,