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Methods Inf Med 2000; 39(02): 146-149
DOI: 10.1055/s-0038-1634278
Original Article
Schattauer GmbH

Reconstructing Bifurcation Diagrams of Dynamical Systems Using Measured Time Series

E. Bagarinao
1   Department of Systems and Human Science, Osaka University, Osaka, Japan
,
K. Pakdaman
1   Department of Systems and Human Science, Osaka University, Osaka, Japan
,
T. Nomura
1   Department of Systems and Human Science, Osaka University, Osaka, Japan
,
S. Sato
1   Department of Systems and Human Science, Osaka University, Osaka, Japan
› Institutsangaben
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Publikationsverlauf

Publikationsdatum:
07. Februar 2018 (online)

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Abstract:

We present an algorithm for reconstructing the bifurcation structure of a dynamical system from time series. The method consists in finding a parameterized predictor function whose bifurcation structure is similar to that of the given system. Nonlinear autoregressive (NAR) models with polynomial terms are employed as predictor functions. The appropriate terms in the NAR models are obtained using a fast orthogonal search scheme. This scheme eliminates the problem of multiparameter optimization and makes the approach robust to noise. The algorithm is applied to the reconstruction of the bifurcation diagram (BD) of a neuron model from the simulated membrane potential waveforms. The reconstructed BD captures the different behaviors of the given system. Moreover, the algorithm also works well even for a limited number of time series.

Keywords:

Bifurcation Diagram Reconstruction - Time Series Analysis - Nonlinear Autoregressive Models
 

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