Networks Emerging from the Competition of Pullulation and Decrepitude
JIANG Pin-Qun1, WANG Bing-Hong1, ZHOU Tao1, JIN Ying-Di1, FU Zhong-Qian2, ZHOU Pei-Ling2, LUO Xiao-Shu3
1Nonlinear Science Center and Department of Modern Physics, University of Science and Technology of China, Hefei 230026
2Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230026
3College of Physics and Information Engineering, Guangxi Normal University, Guilin 541004
Networks Emerging from the Competition of Pullulation and Decrepitude
1Nonlinear Science Center and Department of Modern Physics, University of Science and Technology of China, Hefei 230026
2Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230026
3College of Physics and Information Engineering, Guangxi Normal University, Guilin 541004
Abstract： In real-world network evolution, the aging effect is universal. We propose a microscopic model for aging networks, which suggests that the activity of a vertex is the result of the competition of two factors: pullulation and decrepitude. By incorporating the pullulation factor into previous models of aging networks, both the global and individual aging effect curves in our model are single peaked, which agrees with the empirical data well. This model can generate networks with scale-free degree distribution, large clustering coefficient and small average distance when the decrepitude intensity is small and the network size not very large. The results of our model show that pullulation may be one of the most important factors affecting the structure and function of aging networks and should not be neglected at all.
JIANG Pin-Qun;WANG Bing-Hong;ZHOU Tao;JIN Ying-Di;FU Zhong-Qian;ZHOU Pei-Ling;LUO Xiao-Shu. Networks Emerging from the Competition of Pullulation and Decrepitude[J]. 中国物理快报, 2005, 22(5): 1285-1288.
JIANG Pin-Qun, WANG Bing-Hong, ZHOU Tao, JIN Ying-Di, FU Zhong-Qian, ZHOU Pei-Ling, LUO Xiao-Shu. Networks Emerging from the Competition of Pullulation and Decrepitude. Chin. Phys. Lett., 2005, 22(5): 1285-1288.
2005, Vol. 22 
