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Optimization-based topology identification of complex networks |
Tang Sheng-Xue(唐圣学)a)†, Chen Li(陈丽) a), and He Yi-Gang(何怡刚)b) |
a Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China; b College of Electrical and Information Engineering, Hunan University, Changsha 410082, China |
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Abstract In many cases, the topological structures of a complex network are unknown or uncertain, and it is of significance to identify the exact topological structure. An optimization-based method of identifying the topological structure of a complex network is proposed in this paper. Identification of the exact network topological structure is converted into a minimal optimization problem by using the estimated network. Then, an improved quantum-behaved particle swarm optimization algorithm is used to solve the optimization problem. Compared with the previous adaptive synchronization-based method, the proposed method is simple and effective and is particularly valid to identify the topological structure of synchronization complex networks. In some cases where the states of a complex network are only partially observable, the exact topological structure of a network can also be identified by using the proposed method. Finally, numerical simulations are provided to show the effectiveness of the proposed method.
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Received: 28 August 2010
Revised: 23 June 2011
Accepted manuscript online:
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PACS:
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05.45.-a
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(Nonlinear dynamics and chaos)
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05.45.Xt
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(Synchronization; coupled oscillators)
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Fund: Project supported by the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 50925727)
and the National Natural Science Foundation of China (Grant No. 60876022). |
Cite this article:
Tang Sheng-Xue(唐圣学), Chen Li(陈丽), and He Yi-Gang(何怡刚) Optimization-based topology identification of complex networks 2011 Chin. Phys. B 20 110502
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