1 code implementation • ICML 2020 • Zahra Monfared, Daniel Durstewitz
On the other hand, mathematical analysis of dynamical systems inferred from data is often more convenient and enables additional insights if these are formulated in continuous time, i. e. as systems of ordinary (or partial) differential equations (ODE).
no code implementations • 28 Feb 2024 • Niclas Göring, Florian Hess, Manuel Brenner, Zahra Monfared, Daniel Durstewitz
We explain why and how out-of-domain (OOD) generalization (OODG) in DSR profoundly differs from OODG considered elsewhere in machine learning.
1 code implementation • 7 Jun 2023 • Florian Hess, Zahra Monfared, Manuel Brenner, Daniel Durstewitz
Here we report that a surprisingly simple modification of teacher forcing leads to provably strictly all-time bounded gradients in training on chaotic systems, and, when paired with a simple architectural rearrangement of a tractable RNN design, piecewise-linear RNNs (PLRNNs), allows for faithful reconstruction in spaces of at most the dimensionality of the observed system.
1 code implementation • 6 Jul 2022 • Manuel Brenner, Florian Hess, Jonas M. Mikhaeil, Leonard Bereska, Zahra Monfared, Po-Chen Kuo, Daniel Durstewitz
In many scientific disciplines, we are interested in inferring the nonlinear dynamical system underlying a set of observed time series, a challenging task in the face of chaotic behavior and noise.
1 code implementation • 14 Oct 2021 • Jonas M. Mikhaeil, Zahra Monfared, Daniel Durstewitz
Here we offer a comprehensive theoretical treatment of this problem by relating the loss gradients during RNN training to the Lyapunov spectrum of RNN-generated orbits.
no code implementations • 29 Sep 2021 • Manuel Brenner, Leonard Bereska, Jonas Magdy Mikhaeil, Florian Hess, Zahra Monfared, Po-Chen Kuo, Daniel Durstewitz
In many scientific disciplines, we are interested in inferring the nonlinear dynamical system underlying a set of observed time series, a challenging task in the face of chaotic behavior and noise.
no code implementations • ICLR 2021 • Dominik Schmidt, Georgia Koppe, Zahra Monfared, Max Beutelspacher, Daniel Durstewitz
A main theoretical interest in biology and physics is to identify the nonlinear dynamical system (DS) that generated observed time series.