Research output: Contribution to journal › Article › peer-review
Artificial neural network as a universal model of nonlinear dynamical systems. / Kuptsov, Pavel V.; Kuptsova, Anna V.; Stankevich, Nataliya V.
In: Russian Journal of Nonlinear Dynamics, Vol. 17, No. 1, 2021, p. 5-21.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Artificial neural network as a universal model of nonlinear dynamical systems
AU - Kuptsov, Pavel V.
AU - Kuptsova, Anna V.
AU - Stankevich, Nataliya V.
N1 - Kuptsov P. V., Kuptsova A. V., Stankevich N. V., Artificial Neural Network as a Universal Model of Nonlinear Dynamical Systems, Rus. J. Nonlin. Dyn., 2021, Vol. 17, no. 1, pp. 5-21
PY - 2021
Y1 - 2021
N2 - We suggest a universal map capable of recovering the behavior of a wide range of dynamical systems given by ODEs. The map is built as an artificial neural network whose weights encode a modeled system. We assume that ODEs are known and prepare training datasets using the equations directly without computing numerical time series. Parameter variations are taken into account in the course of training so that the network model captures bifurcation scenarios of the modeled system. The theoretical benefit from this approach is that the universal model admits applying common mathematical methods without needing to develop a unique theory for each particular dynamical equations. From the practical point of view the developed method can be considered as an alternative numerical method for solving dynamical ODEs suitable for running on contemporary neural network specific hardware. We consider the Lorenz system, the Rössler system and also the Hindmarch - Rose model. For these three examples the network model is created and its dynamics is compared with ordinary numerical solutions. A high similarity is observed for visual images of attractors, power spectra, bifurcation diagrams and Lyapunov exponents.
AB - We suggest a universal map capable of recovering the behavior of a wide range of dynamical systems given by ODEs. The map is built as an artificial neural network whose weights encode a modeled system. We assume that ODEs are known and prepare training datasets using the equations directly without computing numerical time series. Parameter variations are taken into account in the course of training so that the network model captures bifurcation scenarios of the modeled system. The theoretical benefit from this approach is that the universal model admits applying common mathematical methods without needing to develop a unique theory for each particular dynamical equations. From the practical point of view the developed method can be considered as an alternative numerical method for solving dynamical ODEs suitable for running on contemporary neural network specific hardware. We consider the Lorenz system, the Rössler system and also the Hindmarch - Rose model. For these three examples the network model is created and its dynamics is compared with ordinary numerical solutions. A high similarity is observed for visual images of attractors, power spectra, bifurcation diagrams and Lyapunov exponents.
KW - Dynamical system
KW - Lyapunov exponents
KW - Neural network
KW - Numerical solution
KW - Universal approximation theorem
UR - http://www.scopus.com/inward/record.url?scp=85105223065&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/049be667-74e4-321c-9acf-46ebd7262e30/
U2 - 10.20537/ND210102
DO - 10.20537/ND210102
M3 - Article
AN - SCOPUS:85105223065
VL - 17
SP - 5
EP - 21
JO - Russian Journal of Nonlinear Dynamics
JF - Russian Journal of Nonlinear Dynamics
SN - 2658-5324
IS - 1
ER -
ID: 86482829