ANALYSIS ON THE EFFICIENCY OF STATISTICAL MEASURES TO IDENTIFY NETWORK STRUCTURE OF CHAOS COUPLED SYSTEMS

Yuta Ueoka (), Tomoya Suzuki () and Seiichi Yamamoto ()
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Yuta Ueoka: Graduate School of Engineering, Doshisha University, 1-3 Tatara-Miyakodani, Kyotanabe-shi, Kyoto 610-0321, Japan
Tomoya Suzuki: Department of Intelligent Systems Engineering, College of Engineering, Ibaraki University, 4-12-1 Nakanarisawa-cho, Hitachi, Ibaraki 316-8511, Japan
Seiichi Yamamoto: Graduate School of Engineering, Doshisha University, 1-3 Tatara-Miyakodani, Kyotanabe-shi, Kyoto 610-0321, Japan

International Journal of Modern Physics C (IJMPC), 2010, vol. 21, issue 08, 1065-1079

Abstract: Real systems often show complex behavior due to interaction among many elements composing a large-scale network. To model and predict these systems, it is desired to estimate network structures by using only time-series data observed as behavior of systems. Although several kinds of estimation techniques have been proposed, the optimum technique might be different according to properties of systems. To analyze the possibility, we estimate interactions of chaos coupled systems by four typical types of estimation techniques. For numerical simulations, we adopt the coupled map lattice, which is a model of large-scale complex systems, and we modify it so as to control the degree of synchronization and the instability of systems by changing the coupling strength and the topology of interaction among elements. As results, we can confirm that the optimum technique depends on properties of system, and then we clarify the reason from the viewpoint of synchronization and the Lyapunov exponents. Moreover, as an application, we predict future behavior of each element with new prediction model based on estimated interactions, and we demonstrate the efficiency of this prediction method.

Keywords: Complex networks; coupled map lattice; time-series analysis; nonlinear prediction; 05.45.Ra; 05.45.Pq; 05.45.Tp; 89.75.-k (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0129183110015671

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