Evolution of Weighted Networks by Duplication-Divergence Mechanism

ZHANG Jian-Guo; YAN Jia-Ren; LIU Zi-Ran; WANG Li

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Evolution of Weighted Networks by Duplication-Divergence Mechanism

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@@ 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 σ, weighted, structured exponential networks are realized.

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《中国物理快报：英文版》 |2006年第8期|2330-2333|共4页
作者
ZHANG Jian-Guo; YAN Jia-Ren; LIU Zi-Ran; WANG Li;
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Department of Physics, Hunan Normal University, Changsha 410081;

Department of Physics, Hunan Normal University, Changsha 410081;

Department of Physics, Hunan Normal University, Changsha 410081;

Department of Physics, Hunan Normal University, Changsha 410081;

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中图分类物理学;
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Evolution of Weighted Networks by Duplication-Divergence Mechanism

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