Reconstruction of observed mechanical motions with Artificial
Intelligence tools
- URL: http://arxiv.org/abs/2202.11447v1
- Date: Wed, 23 Feb 2022 11:52:08 GMT
- Title: Reconstruction of observed mechanical motions with Artificial
Intelligence tools
- Authors: Antal Jakovac, Marcell T. Kurbucz, Peter Posfay
- Abstract summary: The laws are represented by neural networks with a limited number of parameters.
We reconstruct both integrable and chaotic motions, as we demonstrate in the example of the gravity pendulum and the double pendulum.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-sa/4.0/
- Abstract: The goal of this paper is to determine the laws of observed trajectories
assuming that there is a mechanical system in the background and using these
laws to continue the observed motion in a plausible way. The laws are
represented by neural networks with a limited number of parameters. The
training of the networks follows the Extreme Learning Machine idea. We
determine laws for different levels of embedding, thus we can represent not
only the equation of motion but also the symmetries of different kinds. In the
recursive numerical evolution of the system, we require the fulfillment of all
the observed laws, within the determined numerical precision. In this way, we
can successfully reconstruct both integrable and chaotic motions, as we
demonstrate in the example of the gravity pendulum and the double pendulum.
Related papers
- Learning Neural Constitutive Laws From Motion Observations for
Generalizable PDE Dynamics [97.38308257547186]
Many NN approaches learn an end-to-end model that implicitly models both the governing PDE and material models.
We argue that the governing PDEs are often well-known and should be explicitly enforced rather than learned.
We introduce a new framework termed "Neural Constitutive Laws" (NCLaw) which utilizes a network architecture that strictly guarantees standard priors.
arXiv Detail & Related papers (2023-04-27T17:42:24Z) - Discrete Lagrangian Neural Networks with Automatic Symmetry Discovery [3.06483729892265]
We introduce a framework to learn a discrete Lagrangian along with its symmetry group from discrete observations of motions.
The learning process does not restrict the form of the Lagrangian, does not require velocity or momentum observations or predictions and incorporates a cost term.
arXiv Detail & Related papers (2022-11-20T00:46:33Z) - Schr\"odinger cat states of a 16-microgram mechanical oscillator [54.35850218188371]
The superposition principle is one of the most fundamental principles of quantum mechanics.
Here we demonstrate the preparation of a mechanical resonator with an effective mass of 16.2 micrograms in Schr"odinger cat states of motion.
We show control over the size and phase of the superposition and investigate the decoherence dynamics of these states.
arXiv Detail & Related papers (2022-11-01T13:29:44Z) - Exact conservation laws for neural network integrators of dynamical
systems [0.0]
We present an approach which uses Noether's Theorem to inherently incorporate conservation laws into the architecture of the neural network.
We demonstrate this leads to better predictions for three model systems.
arXiv Detail & Related papers (2022-09-23T15:45:05Z) - Rediscovering orbital mechanics with machine learning [1.2999518604217852]
We train a "graph neural network" to simulate the dynamics of our solar system's Sun, planets, and large moons from 30 years of trajectory data.
We then use symbolic regression to discover an analytical expression for the force law implicitly learned by the neural network.
arXiv Detail & Related papers (2022-02-04T18:44:21Z) - Lagrangian Neural Network with Differential Symmetries and Relational
Inductive Bias [5.017136256232997]
We present a momentum conserving Lagrangian neural network (MCLNN) that learns the Lagrangian of a system.
We also show that the model developed can generalize to systems of any arbitrary size.
arXiv Detail & Related papers (2021-10-07T08:49:57Z) - The Logic of Quantum Programs [77.34726150561087]
We present a logical calculus for reasoning about information flow in quantum programs.
In particular we introduce a dynamic logic that is capable of dealing with quantum measurements, unitary evolutions and entanglements in compound quantum systems.
arXiv Detail & Related papers (2021-09-14T16:08:37Z) - The problem of engines in statistical physics [62.997667081978825]
Engines are open systems that can generate work cyclically, at the expense of an external disequilibrium.
Recent advances in the theory of open quantum systems point to a more realistic description of autonomous engines.
We show how the external loading force and the thermal noise may be incorporated into the relevant equations of motion.
arXiv Detail & Related papers (2021-08-17T03:59:09Z) - Machine Learning S-Wave Scattering Phase Shifts Bypassing the Radial
Schr\"odinger Equation [77.34726150561087]
We present a proof of concept machine learning model resting on a convolutional neural network capable to yield accurate scattering s-wave phase shifts.
We discuss how the Hamiltonian can serve as a guiding principle in the construction of a physically-motivated descriptor.
arXiv Detail & Related papers (2021-06-25T17:25:38Z) - Identifying Physical Law of Hamiltonian Systems via Meta-Learning [0.0]
Hamiltonian mechanics is an effective tool to represent many physical processes.
We show that a well meta-trained learner can identify the shared representation of the Hamiltonian.
arXiv Detail & Related papers (2021-02-23T08:16:13Z) - Spherical Motion Dynamics: Learning Dynamics of Neural Network with
Normalization, Weight Decay, and SGD [105.99301967452334]
We show the learning dynamics of neural network with normalization, weight decay (WD), and SGD (with momentum) named as Spherical Motion Dynamics (SMD)
We verify our assumptions and theoretical results on various computer vision tasks including ImageNet and MSCOCO with standard settings.
arXiv Detail & Related papers (2020-06-15T14:16:33Z)
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.