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This chapter provides an overview of state-of-the-art adaptive finite element methods (AFEMs) for the numerical solution of second-order elliptic partial differential equations (PDEs), where the primary focus is on the optimal interplay of…

数值分析 · 数学 2024-04-11 Philipp Bringmann , Ani Miraçi , Dirk Praetorius

Recent years have witnessed a growth in mathematics for deep learning--which seeks a deeper understanding of the concepts of deep learning with mathematics and explores how to make it more robust--and deep learning for mathematics, where…

The use of neural networks to approximate partial differential equations (PDEs) has gained significant attention in recent years. However, the approximation of PDEs with localised phenomena, e.g., sharp gradients and singularities, remains…

数值分析 · 数学 2025-01-30 Santiago Badia , Wei Li , Alberto F. Martín

The measured spatiotemporal response of various physical processes is utilized to infer the governing partial differential equations (PDEs). We propose SimultaNeous Basis Function Approximation and Parameter Estimation (SNAPE), a technique…

机器学习 · 计算机科学 2021-09-17 Sutanu Bhowmick , Satish Nagarajaiah

Adversarial training (AT) is among the most effective techniques to improve model robustness by augmenting training data with adversarial examples. However, most existing AT methods adopt a specific attack to craft adversarial examples,…

机器学习 · 计算机科学 2020-11-20 Yinpeng Dong , Zhijie Deng , Tianyu Pang , Hang Su , Jun Zhu

This paper presents a novel Energy-Equidistributed adaptive sampling framework for multi-dimensional conservative PDEs, introducing both location-based and velocity-based formulations of Energy-Equidistributed moving mesh PDEs (EMMPDEs).…

数值分析 · 数学 2025-08-28 Qinjiao Gao , Longzhe Xu , Dongjiang Wang , Ran Zhang

Physics-Informed Neural Networks (PINNs), which incorporate PDEs as soft constraints, train with a composite loss function that contains multiple training point types: different types of collocation points chosen during training to enforce…

机器学习 · 计算机科学 2024-04-15 Gregory Kang Ruey Lau , Apivich Hemachandra , See-Kiong Ng , Bryan Kian Hsiang Low

In recent years, the researches about solving partial differential equations (PDEs) based on artificial neural network have attracted considerable attention. In these researches, the neural network models are usually designed depend on…

神经与进化计算 · 计算机科学 2024-05-21 Bo Zhang , Chao Yang

Recent advances in Scientific Machine Learning have shown that second-order methods can enhance the training of Physics-Informed Neural Networks (PINNs), making them a suitable alternative to traditional numerical methods for Partial…

机器学习 · 计算机科学 2025-10-27 Andrea Bonfanti , Ismael Medina , Roman List , Björn Staeves , Roberto Santana , Marco Ellero

Task robust adaptation is a long-standing pursuit in sequential decision-making. Some risk-averse strategies, e.g., the conditional value-at-risk principle, are incorporated in domain randomization or meta reinforcement learning to…

机器学习 · 计算机科学 2025-05-16 Yun Qu , Qi Cheems Wang , Yixiu Mao , Yiqin Lv , Xiangyang Ji

Time-dependent partial differential equations (PDEs) often develop sharp fronts, localized peaks, and other moving structures that occupy only a small portion of the space--time domain but dominate the approximation error. This makes fixed…

数值分析 · 数学 2026-05-27 Beining Xu , Bocheng Zhang , Haijun Yu , Zhao Zhang , Jiayu Zhai

Numerical solutions of hyperbolic partial differential equations(PDEs) are ubiquitous in science and engineering. Method of lines is a popular approach to discretize PDEs defined in spacetime, where space and time are discretized…

数学软件 · 计算机科学 2020-11-24 Milinda Fernando , Hari Sundar

Finding accurate solutions to partial differential equations (PDEs) is a crucial task in all scientific and engineering disciplines. It has recently been shown that machine learning methods can improve the solution accuracy by correcting…

计算物理 · 物理学 2021-01-06 Kiwon Um , Robert Brand , Yun , Fei , Philipp Holl , Nils Thuerey

We introduce an adaptive scheduling for adaptive sampling as a novel way of machine learning in the construction of part-of-speech taggers. The goal is to speed up the training on large data sets, without significant loss of performance…

计算与语言 · 计算机科学 2024-02-06 Manuel Vilares Ferro , Victor M. Darriba Bilbao , Jesús Vilares Ferro

Deep learning has been shown to be an effective tool in solving partial differential equations (PDEs) through physics-informed neural networks (PINNs). PINNs embed the PDE residual into the loss function of the neural network, and have been…

机器学习 · 计算机科学 2022-04-06 Jeremy Yu , Lu Lu , Xuhui Meng , George Em Karniadakis

Deep learning has achieved remarkable success in diverse applications; however, its use in solving partial differential equations (PDEs) has emerged only recently. Here, we present an overview of physics-informed neural networks (PINNs),…

机器学习 · 计算机科学 2021-11-03 Lu Lu , Xuhui Meng , Zhiping Mao , George E. Karniadakis

Multiscale and multiphysics problems need novel numerical methods in order for them to be solved correctly and predictively. To that end, we develop a wavelet based technique to solve a coupled system of nonlinear partial differential…

数值分析 · 数学 2023-03-22 Cale Harnish , Luke Dalessandro , Karel Matous , Daniel Livescu

Learning solutions of partial differential equations (PDEs) with Physics-Informed Neural Networks (PINNs) is an attractive alternative approach to traditional solvers due to its flexibility and ease of incorporating observed data. Despite…

机器学习 · 计算机科学 2022-05-13 Wei Peng , Weien Zhou , Xiaoya Zhang , Wen Yao , Zheliang Liu

This paper introduces the Adaptive Learning Path Navigation (ALPN) system, a novel approach for enhancing E-learning platforms by providing highly adaptive learning paths for students. The ALPN system integrates the Attentive Knowledge…

人工智能 · 计算机科学 2023-06-22 Jyun-Yi Chen , Saeed Saeedvand , I-Wei Lai

Learning complex trajectories from demonstrations in robotic tasks has been effectively addressed through the utilization of Dynamical Systems (DS). State-of-the-art DS learning methods ensure stability of the generated trajectories;…

机器人学 · 计算机科学 2024-12-10 Andreas Sochopoulos , Michael Gienger , Sethu Vijayakumar