Phase-Amplitude Coordinate-Based Neural Networks for Inferring Oscillatory Dynamics
Phase-Amplitude Coordinate-Based Neural Networks for Inferring Oscillatory Dynamics
复制标题
用于推断振荡动力学的基于相位振幅坐标的神经网络
DOI:
10.1007/s00332-023-09994-y
复制
发表时间:
2024
影响因子:
3
通讯作者:
Wilson, Dan
中科院分区:
文献类型:
--
作者:
Ahmed, Talha;Wilson, Dan
The dynamics of a periodic nonlinear system can be represented accurately beyond the limit cycle in a reduced-order phase-amplitude coordinate-based model reduction framework. When only observable time series data is available, data-driven strategies must be employed for model inference. In this work, we propose a data-driven approach that can predict the unknown, periodic terms of a phase-amplitude coordinate-based reduced-order model by considering their Fourier series expansions and reframing the terms as a composition of a known nonlinear function with an unknown linear function. These linear functions can be structured as weights of a feed-forward neural network and learned to obtain a reduced-order model representation valid to arbitrary orders of accuracy in an expansion of amplitude coordinates by training the network on observable data. The proposed approach can be used in conjunction with other recently developed reduced-order modeling approaches to yield very high accuracy reduced-order models. The proposed strategy is illustrated in a variety of examples that consider the dynamics of a synaptically coupled neuronal population.
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影响因子:
1.9
作者:
Wilson, Dan
通讯作者:
Wilson, Dan
影响因子:
--
作者:
Matthew D. Kvalheim;D. Hong;Shai Revzen
通讯作者:
Shai Revzen
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
A. Mauroy;I. Mezić;J. Moehlis
通讯作者:
J. Moehlis
DOI:
10.1016/j.physd.2023.133675
发表时间:
2023
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
Wilson, Dan
通讯作者:
Wilson, Dan
影响因子:
1.9
作者:
Monga, Bharat;Wilson, Dan;Matchen, Tim;Moehlis, Jeff
通讯作者:
Moehlis, Jeff