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An Artificial Neural Network-based error compensation method is proposed for improving the accuracy of resolver-based 16-bit encoders by compensating for their respective systematic error profiles. The error compensation procedure, for a…

神经与进化计算 · 计算机科学 2015-05-14 V. K. Dhar , A. K. Tickoo , S. K. Kaul , R. Koul , B. P. Dubey

Physics-Informed Neural Networks (PINNs) encounter accuracy limitations when solving the Allen--Cahn (AC) and Cahn--Hilliard (CH) partial differential equations (PDEs). To overcome this, we employ a novel loss function, Residuals-weighted…

数值分析 · 数学 2026-02-25 Guangtao Zhang , Jiani Lin , Qijia Zhai , Huiyu Yang , Xujun Chen , Ieng Tak Leong , Fang Zhu

Recent works have shown that deep neural networks can be employed to solve partial differential equations, giving rise to the framework of physics informed neural networks. We introduce a generalization for these methods that manifests as a…

数值分析 · 数学 2021-03-25 Remco van der Meer , Cornelis Oosterlee , Anastasia Borovykh

The ATLAS experiment at the Large Hadron Collider explores the use of modern neural networks for a multi-dimensional calibration of its calorimeter signal defined by clusters of topologically connected cells (topo-clusters). The Bayesian…

高能物理 - 实验 · 物理学 2026-02-03 ATLAS Collaboration

We prove that deep neural networks are capable of approximating solutions of semilinear Kolmogorov PDE in the case of gradient-independent, Lipschitz-continuous nonlinearities, while the required number of parameters in the networks grow at…

数值分析 · 数学 2022-05-31 Petru A. Cioica-Licht , Martin Hutzenthaler , P. Tobias Werner

DeepONets have recently been proposed as a framework for learning nonlinear operators mapping between infinite dimensional Banach spaces. We analyze DeepONets and prove estimates on the resulting approximation and generalization errors. In…

数值分析 · 数学 2022-01-14 Samuel Lanthaler , Siddhartha Mishra , George Em Karniadakis

Numerically solving high-dimensional partial differential equations (PDEs) is a major challenge. Conventional methods, such as finite difference methods, are unable to solve high-dimensional PDEs due to the curse-of-dimensionality. A…

数值分析 · 数学 2023-05-11 Deqing Jiang , Justin Sirignano , Samuel N. Cohen

In the upcoming years, artificial intelligence (AI) is going to transform the practice of medicine in most of its specialties. Deep learning can help achieve better and earlier problem detection, while reducing errors on diagnosis. By…

机器学习 · 计算机科学 2023-09-07 Julie Payette , Sylvain G. Cloutier , Fabrice Vaussenat

We propose the first learning scheme for functional differential equations (FDEs). FDEs play a fundamental role in physics, mathematics, and optimal control. However, the numerical analysis of FDEs has faced challenges due to its…

数值分析 · 数学 2024-10-25 Taiki Miyagawa , Takeru Yokota

Physics-informed neural networks (PINNs) were recently proposed in [1] as an alternative way to solve partial differential equations (PDEs). A neural network (NN) represents the solution while a PDE-induced NN is coupled to the solution NN,…

计算物理 · 物理学 2019-10-22 Xiaoli Chen , Jinqiao Duan , George Em Karniadakis

Neural networks are universal approximators and are studied for their use in solving differential equations. However, a major criticism is the lack of error bounds for obtained solutions. This paper proposes a technique to rigorously…

计算工程、金融与科学 · 计算机科学 2023-06-07 Shuheng Liu , Xiyue Huang , Pavlos Protopapas

It is one of the most challenging problems in applied mathematics to approximatively solve high-dimensional partial differential equations (PDEs). In particular, most of the numerical approximation schemes studied in the scientific…

数值分析 · 数学 2019-11-11 Michael B. Giles , Arnulf Jentzen , Timo Welti

The advent of fast sensing technologies allows for real-time model updates in many applications where the model parameters are uncertain. Bayesian algorithms, such as ensemble smoothers, offer a real-time probabilistic inversion accounting…

地球物理 · 物理学 2022-05-26 Muzammil Hussain Rammay , Sergey Alyaev , Ahmed H Elsheikh

New generation large-aperture telescopes, multi-object spectrographs, and large format detectors are making it possible to acquire very large samples of stellar spectra rapidly. In this context, traditional star-by-star spectroscopic…

We propose a new class of Bayesian neural networks (BNNs) that can be trained using noisy data of variable fidelity, and we apply them to learn function approximations as well as to solve inverse problems based on partial differential…

机器学习 · 计算机科学 2021-06-02 Xuhui Meng , Hessam Babaee , George Em Karniadakis

In this study, we introduce a novel approach in quantum field theories to estimate the action using the artificial neural networks (ANNs). The estimation is achieved by learning on system configurations governed by the Boltzmann factor,…

高能物理 - 格点 · 物理学 2024-10-10 Tian Xu , Lingxiao Wang , Lianyi He , Kai Zhou , Yin Jiang

Partial differential equations play a fundamental role in the mathematical modelling of many processes and systems in physical, biological and other sciences. To simulate such processes and systems, the solutions of PDEs often need to be…

This book aims to provide an introduction to the topic of deep learning algorithms. We review essential components of deep learning algorithms in full mathematical detail including different artificial neural network (ANN) architectures…

机器学习 · 计算机科学 2025-07-17 Arnulf Jentzen , Benno Kuckuck , Philippe von Wurstemberger

We introduce a novel approach to automatic unstructured mesh generation using machine learning to predict an optimal finite element mesh for a previously unseen problem. The framework that we have developed is based around training an…

数值分析 · 数学 2020-04-16 Zheyan Zhang , Yongxing Wang , Peter K. Jimack , He Wang

Partial differential equations (PDEs) are instrumental for modeling dynamical systems in science and engineering. The advent of neural networks has initiated a significant shift in tackling these complexities though challenges in accuracy…

机器学习 · 计算机科学 2024-06-07 Zhuo Chen , Jacob McCarran , Esteban Vizcaino , Marin Soljačić , Di Luo