中国物理B ›› 2010, Vol. 19 ›› Issue (7): 70204-070204.doi: 10.1088/1674-1056/19/7/070204

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A novel evolving scale-free model with tunable attractiveness

王昊1, 刘绚2, 刘天琪2, 李兴源2   

  1. (1)College of Electronics and Information Engineering, Sichuan University, Chengdu 610000, China; (2)School of Electrical Engineering and Automation, Sichuan University, Chengdu 610000, China
  • 修回日期:2010-01-18 出版日期:2010-07-15 发布日期:2010-07-15
  • 基金资助:
    Project supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2008BAA13B01).

A novel evolving scale-free model with tunable attractiveness

Liu Xuan (刘绚)a, Liu Tian-Qi (刘天琪)a, Wang Hao (王昊)b, Li Xing-Yuan (李兴源)a   

  1. a School of Electrical Engineering and Automation, Sichuan University, Chengdu 610000, China; b College of Electronics and Information Engineering, Sichuan University, Chengdu 610000, China
  • Revised:2010-01-18 Online:2010-07-15 Published:2010-07-15
  • Supported by:
    Project supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2008BAA13B01).

摘要: In this paper, a new evolving model with tunable attractiveness is presented. Based on the Barabasi—Albert (BA) model, we introduce the attractiveness of node which can change with node degree. Using the mean-field theory, we obtain the analytical expression of power-law degree distribution with the exponent γ ∈ (3,∞). The new model is more homogeneous and has a lower clustering coefficient and bigger average path length than the BA model.

Abstract: In this paper, a new evolving model with tunable attractiveness is presented. Based on the Barabasi—Albert (BA) model, we introduce the attractiveness of node which can change with node degree. Using the mean-field theory, we obtain the analytical expression of power-law degree distribution with the exponent $\gamma \in (3,\infty)$. The new model is more homogeneous and has a lower clustering coefficient and bigger average path length than the BA model.

Key words: scale-free, tunable attractiveness, degree distribution, clustering coefficient

中图分类号:  (Networks and genealogical trees)

  • 89.75.Hc
02.30.Jr (Partial differential equations) 02.50.Cw (Probability theory)