| Evolution of Weighted Networks by Duplication-Divergence Mechanism |
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| 引用本文： | 张建国 颜家壬 刘自然 王俐. Evolution of Weighted Networks by Duplication-Divergence Mechanism[J]. 中国物理快报, 2006, 23(8): 2330-2333 |
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| 作者姓名： | 张建国 颜家壬 刘自然 王俐 |
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| 作者单位： | Department of Physics, Hunan Normal University, Changsha 410081 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10375022. |
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| 摘 要： | The duplication and divergence process is ubiquitous in nature and man-made networks. Motivated by the duplication-divergence mechanism which depicts the growth of protein networks, we propose a weighted network model in which topological evolution is coupled with weight dynamics. Large scale numerical results indicate that our model can naturally generate networks with power-law-like distributions of degree, strength and weight. The degree-strength correlation is illustrated as well. These properties are in agreement well with empirical data observed in real-world systems. Furthermore, by altering the retention probability δ, weighted, structured exponential networks are realized.
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| 关 键 词： | 进化 散度机制 人工网络 非线性物理 |
| 收稿时间： | 2006-03-24 |
| 修稿时间： | 2006-03-24 |
Evolution of Weighted Networks by Duplication--Divergence Mechanism |
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| ZHANG Jian-Guo,YAN Jia-Ren,LIU Zi-Ran,WANG Li. Evolution of Weighted Networks by Duplication--Divergence Mechanism[J]. Chinese Physics Letters, 2006, 23(8): 2330-2333 |
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| Authors: | ZHANG Jian-Guo YAN Jia-Ren LIU Zi-Ran WANG Li |
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| Affiliation: | Department of Physics, Hunan Normal University, Changsha 410081 |
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| Abstract: | |
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| Keywords: | 89.75.Hc 05.45.-a 87.23.Kg |
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