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Several complex physical systems are governed by multi-scale partial differential equations (PDEs) that exhibit both smooth low-frequency components and localized high-frequency structures. Existing physics-informed neural network (PINN)…

机器学习 · 计算机科学 2026-02-19 Zhenzhen Huang , Haoyu Bian , Jiaquan Zhang , Yibei Liu , Kuien Liu , Caiyan Qin , Guoqing Wang , Yang Yang , Chaoning Zhang

Physics-informed neural networks (PINNs) have recently emerged as a prominent paradigm for solving partial differential equations (PDEs), yet their training strategies remain underexplored. While hard prioritization methods inspired by…

机器学习 · 计算机科学 2025-12-22 Zhaoqian Gao , Min Yanga

Physics-Informed Neural Networks(PINNs) are a powerful and flexible learning framework that has gained significant attention in recent years. It has demonstrated strong performance across a wide range of scientific and engineering problems.…

机器学习 · 计算机科学 2026-03-20 Krishna Murari

We develop a physics-informed neural network (PINN) to significantly augment state-of-the-art experimental data and apply it to stratified flows. The PINN is a fully-connected deep neural network fed with time-resolved, three-component…

流体动力学 · 物理学 2023-09-27 Lu Zhu , Xianyang Jiang , Adrien Lefauve , Rich R. Kerswell , P. F. Linden

Physics-Informed Neural Networks (PINNs) are Neural Network architectures trained to emulate solutions of differential equations without the necessity of solution data. They are currently ubiquitous in the scientific literature due to their…

机器学习 · 计算机科学 2023-08-25 Andrea Bonfanti , Roberto Santana , Marco Ellero , Babak Gholami

This work presents a two-stage adaptive framework for progressively developing deep neural network (DNN) architectures that generalize well for a given training data set. In the first stage, a layerwise training approach is adopted where a…

机器学习 · 计算机科学 2024-09-24 C G Krishnanunni , Tan Bui-Thanh

Neuromorphic computing systems are set to revolutionize energy-constrained robotics by achieving orders-of-magnitude efficiency gains, while enabling native temporal processing. Spiking Neural Networks (SNNs) represent a promising…

人工智能 · 计算机科学 2025-10-29 Korneel Van den Berghe , Stein Stroobants , Vijay Janapa Reddi , G. C. H. E. de Croon

Electron-beam irradiation limits atomic-resolution characterization of beam-sensitive hybrid materials, yet quantitative models that connect \textit{in situ} spectroscopy to dose-dependent degradation remain scarce. Here we use a…

材料科学 · 物理学 2026-05-05 Gabriel T. dos Santos , Roberto dos Reis , Vinayak P. Dravid

Physics-informed neural networks (PINNs) leverage neural-networks to find the solutions of partial differential equation (PDE)-constrained optimization problems with initial conditions and boundary conditions as soft constraints. These soft…

机器学习 · 计算机科学 2022-12-09 Rambod Mojgani , Maciej Balajewicz , Pedram Hassanzadeh

Physics-Informed Neural Networks (PINNs) are a class of deep learning neural networks that learn the response of a physical system without any simulation data, and only by incorporating the governing partial differential equations (PDEs) in…

机器学习 · 计算机科学 2023-12-19 Rini J. Gladstone , Mohammad A. Nabian , N. Sukumar , Ankit Srivastava , Hadi Meidani

Recent studies have determined that the learned token embeddings of large-scale neural language models are degenerated to be anisotropic with a narrow-cone shape. This phenomenon, called the representation degeneration problem, facilitates…

计算与语言 · 计算机科学 2022-06-09 Sangwon Yu , Jongyoon Song , Heeseung Kim , Seong-min Lee , Woo-Jong Ryu , Sungroh Yoon

A novel comparison is presented of the effect of optimiser choice on the accuracy of physics-informed neural networks (PINNs). To give insight into why some optimisers are better, a new approach is proposed that tracks the training…

机器学习 · 计算机科学 2023-03-28 Nayara Fonseca , Veronica Guidetti , Will Trojak

Dimensionality reduction is critical for deploying dense retrieval systems at scale, yet mainstream post-hoc methods face a fundamental trade-off: principal component analysis (PCA) preserves dominant variance but underutilizes…

信息检索 · 计算机科学 2026-04-20 Yongkang Li , Panagiotis Eustratiadis , Evangelos Kanoulas

Optimization-based PDE solvers that minimize scalar loss functions have gained increasing attention in recent years. These methods either define the loss directly over discrete variables, as in Optimizing a Discrete Loss (ODIL), or…

计算工程、金融与科学 · 计算机科学 2025-08-06 Wenbo Cao , Weiwei Zhang

Artificial Spiking Neural Networks (ASNNs) promise greater information processing efficiency because of discrete event-based (i.e., spike) computation. Several Machine Learning (ML) applications use biologically inspired plasticity…

机器学习 · 计算机科学 2022-03-15 Mahima Milinda Alwis Weerasinghe , David Parry , Grace Wang , Jacqueline Whalley

Physics-informed neural networks (PINNs) are a promising approach that combines the power of neural networks with the interpretability of physical modeling. PINNs have shown good practical performance in solving partial differential…

统计理论 · 数学 2026-01-26 Nathan Doumèche , Gérard Biau , Claire Boyer

The numerical modeling of thin shell structures is a challenge, which has been met by a variety of finite element (FE) and other formulations -- many of which give rise to new challenges, from complex implementations to artificial locking.…

计算工程、金融与科学 · 计算机科学 2024-02-02 Jan-Hendrik Bastek , Dennis M. Kochmann

We propose a hybrid solver that fuses the dimensionality-reduction strengths of the Method of Lines (MOL) with the flexibility of Physics-Informed Neural Networks (PINNs). Instead of approximating spatial derivatives with fixed…

计算物理 · 物理学 2025-12-24 Maximilian Cederholm , Siyao Wang , Haochun Wang , Ruichen Xu , Yuefan Deng

Adaptive prompting mechanisms have been proposed to enhance vision-language models by dynamically tailoring prompts to inputs. However, in frozen few-shot prompt learning with CLIP-style backbones, we systematically observe that adaptive…

机器学习 · 计算机科学 2026-05-12 Yunxuan Fang , Ziwei Zhang , Xinhe Wang

Standard Physics-Informed Neural Networks (PINNs) often face challenges when modeling parameterized dynamical systems with sharp regime transitions, such as bifurcations. In these scenarios, the continuous mapping from parameters to…

机器学习 · 计算机科学 2026-03-06 Enzo Nicolas Spotorno , Josafat Ribeiro Leal , Antonio Augusto Frohlich