Learning differential equations from data
- URL: http://arxiv.org/abs/2205.11483v1
- Date: Mon, 23 May 2022 17:36:28 GMT
- Title: Learning differential equations from data
- Authors: K. D. Olumoyin
- Abstract summary: In recent times, due to the abundance of data, there is an active search for data-driven methods to learn Differential equation models from data.
We propose a forward-Euler based neural network model and test its performance by learning ODEs from data using different number of hidden layers and different neural network width.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Differential equations are used to model problems that originate in
disciplines such as physics, biology, chemistry, and engineering. In recent
times, due to the abundance of data, there is an active search for data-driven
methods to learn Differential equation models from data. However, many
numerical methods often fall short. Advancements in neural networks and deep
learning, have motivated a shift towards data-driven deep learning methods of
learning differential equations from data. In this work, we propose a
forward-Euler based neural network model and test its performance by learning
ODEs such as the FitzHugh-Nagumo equations from data using different number of
hidden layers and different neural network width.
Related papers
- A PINN Approach to Symbolic Differential Operator Discovery with Sparse
Data [0.0]
In this work we perform symbolic discovery of differential operators in a situation where there is sparse experimental data.
We modify the PINN approach by adding a neural network that learns a representation of unknown hidden terms in the differential equation.
The algorithm yields both a surrogate solution to the differential equation and a black-box representation of the hidden terms.
arXiv Detail & Related papers (2022-12-09T02:09:37Z) - D-CIPHER: Discovery of Closed-form Partial Differential Equations [80.46395274587098]
We propose D-CIPHER, which is robust to measurement artifacts and can uncover a new and very general class of differential equations.
We further design a novel optimization procedure, CoLLie, to help D-CIPHER search through this class efficiently.
arXiv Detail & Related papers (2022-06-21T17:59:20Z) - Neural Laplace: Learning diverse classes of differential equations in
the Laplace domain [86.52703093858631]
We propose a unified framework for learning diverse classes of differential equations (DEs) including all the aforementioned ones.
Instead of modelling the dynamics in the time domain, we model it in the Laplace domain, where the history-dependencies and discontinuities in time can be represented as summations of complex exponentials.
In the experiments, Neural Laplace shows superior performance in modelling and extrapolating the trajectories of diverse classes of DEs.
arXiv Detail & Related papers (2022-06-10T02:14:59Z) - On the balance between the training time and interpretability of neural
ODE for time series modelling [77.34726150561087]
The paper shows that modern neural ODE cannot be reduced to simpler models for time-series modelling applications.
The complexity of neural ODE is compared to or exceeds the conventional time-series modelling tools.
We propose a new view on time-series modelling using combined neural networks and an ODE system approach.
arXiv Detail & Related papers (2022-06-07T13:49:40Z) - Neural ODEs with Irregular and Noisy Data [8.349349605334316]
We discuss a methodology to learn differential equation(s) using noisy and irregular sampled measurements.
In our methodology, the main innovation can be seen in the integration of deep neural networks with the neural ordinary differential equations (ODEs) approach.
The proposed framework to learn a model describing the vector field is highly effective under noisy measurements.
arXiv Detail & Related papers (2022-05-19T11:24:41Z) - Physics Informed RNN-DCT Networks for Time-Dependent Partial
Differential Equations [62.81701992551728]
We present a physics-informed framework for solving time-dependent partial differential equations.
Our model utilizes discrete cosine transforms to encode spatial and recurrent neural networks.
We show experimental results on the Taylor-Green vortex solution to the Navier-Stokes equations.
arXiv Detail & Related papers (2022-02-24T20:46:52Z) - On Neural Differential Equations [13.503274710499971]
In particular, neural differential equations (NDEs) demonstrate that neural networks and differential equations are two sides of the same coin.
NDEs are suitable for tackling generative problems, dynamical systems, and time series.
NDEs offer high-capacity function approximation, strong priors on model space, the ability to handle irregular data, memory efficiency, and a wealth of available theory on both sides.
arXiv Detail & Related papers (2022-02-04T23:32:29Z) - Climate Modeling with Neural Diffusion Equations [3.8521112392276]
We design a novel climate model based on the neural ordinary differential equation (NODE) and the diffusion equation.
Our method consistently outperforms existing baselines by non-trivial margins.
arXiv Detail & Related papers (2021-11-11T01:48:46Z) - Learning Dynamics from Noisy Measurements using Deep Learning with a
Runge-Kutta Constraint [9.36739413306697]
We discuss a methodology to learn differential equation(s) using noisy and sparsely sampled measurements.
In our methodology, the main innovation can be seen in of integration of deep neural networks with a classical numerical integration method.
arXiv Detail & Related papers (2021-09-23T15:43:45Z) - Model-Based Deep Learning [155.063817656602]
Signal processing, communications, and control have traditionally relied on classical statistical modeling techniques.
Deep neural networks (DNNs) use generic architectures which learn to operate from data, and demonstrate excellent performance.
We are interested in hybrid techniques that combine principled mathematical models with data-driven systems to benefit from the advantages of both approaches.
arXiv Detail & Related papers (2020-12-15T16:29:49Z) - The data-driven physical-based equations discovery using evolutionary
approach [77.34726150561087]
We describe the algorithm for the mathematical equations discovery from the given observations data.
The algorithm combines genetic programming with the sparse regression.
It could be used for governing analytical equation discovery as well as for partial differential equations (PDE) discovery.
arXiv Detail & Related papers (2020-04-03T17:21:57Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.