中文
相关论文

相关论文: Wiener Chaos Expansion based Neural Operator for S…

200 篇论文

Solving nonlinear partial differential equations (PDEs) with multiple solutions using neural networks has found widespread applications in various fields such as physics, biology, and engineering. However, classical neural network methods…

机器学习 · 计算机科学 2024-05-24 Wenrui Hao , Xinliang Liu , Yahong Yang

Operator learning has become a powerful tool for accelerating the solution of parameterized partial differential equations (PDEs), enabling rapid prediction of full spatiotemporal fields for new initial conditions or forcing functions.…

机器学习 · 计算机科学 2025-12-18 Hongjin Mi , Huiqiang Lun , Changhong Mou , Yeyu Zhang

Accurately quantifying long-term risk probabilities in diverse stochastic systems is essential for safety-critical control. However, existing sampling-based and partial differential equation (PDE)-based methods often struggle to handle…

系统与控制 · 电气工程与系统科学 2025-08-29 Zhuoyuan Wang , Raffaele Romagnoli , Kamyar Azizzadenesheli , Yorie Nakahira

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

In scientific and engineering applications, solving partial differential equations (PDEs) across various parameters and domains normally relies on resource-intensive numerical methods. Neural operators based on deep learning offered a…

数值分析 · 数学 2024-06-21 Zhiwei Zhao , Changqing Liu , Yingguang Li , Zhibin Chen , Xu Liu

We prove global well-posedness for a class of dissipative semilinear stochastic evolution equations with singular drift and multiplicative Wiener noise. In particular, the nonlinear term in the drift is the superposition operator associated…

偏微分方程分析 · 数学 2018-10-03 Carlo Marinelli , Luca Scarpa

The inverse Stefan problem, as a typical phase-change problem with moving boundaries, finds extensive applications in science and engineering. Recent years have seen the applications of physics-informed neural networks (PINNs) to solving…

机器学习 · 计算机科学 2025-10-27 Pei-Zhi Zhuang , Ming-Yue Yang , Fei Ren , Hong-Ya Yue , He Yang

We introduce a unified framework -- Quantum Neural Ordinary and Partial Differential Equations (QNODEs and QNPDEs) -- which extends the continuous-time formalism of classical neural ordinary and partial differential equations into quantum…

量子物理 · 物理学 2026-01-13 Yu Cao , Shi Jin , Nana Liu

We consider multiple stochastic integrals with respect to c\`adl\`ag martingales, which approximate a cylindrical Wiener process. We define a chaos expansion, analogous to the case of multiple Wiener stochastic integrals, for these…

概率论 · 数学 2023-07-26 Paolo Grazieschi , Konstantin Matetski , Hendrik Weber

We study parabolic stochastic partial differential equations (SPDEs), driven by two types of operators: one linear closed operator generating a $C_0-$semigroup and one linear bounded operator with Wick-type multiplication, all of them set…

概率论 · 数学 2023-03-16 Tijana Levajkovic , Stevan Pilipovic , Dora Selesi , Milica Zigic

Partial Differential Equation (PDE) problems often exhibit strong local spatial structures, and effectively capturing these structures is critical for approximating their solutions. Recently, the Fourier Neural Operator (FNO) has emerged as…

机器学习 · 计算机科学 2025-06-05 Chaoyu Liu , Davide Murari , Lihao Liu , Yangming Li , Chris Budd , Carola-Bibiane Schönlieb

Recently deep learning surrogates and neural operators have shown promise in solving partial differential equations (PDEs). However, they often require a large amount of training data and are limited to bounded domains. In this work, we…

机器学习 · 计算机科学 2023-08-25 Zhiwei Fang , Sifan Wang , Paris Perdikaris

Learning maps between function spaces with a strong inductive bias is a central challenge in soft computing, especially when training data are scarce and standard deep architectures overfit. We introduce a \emph{neural integral operator}…

机器学习 · 计算机科学 2026-05-26 Emanuele Zappala , Alice Giola , Andreas Kramer , Saugat Acharya , Enrico Greco

Many real-world problems, like modelling environment dynamics, physical processes, time series etc., involve solving Partial Differential Equations (PDEs) parameterised by problem-specific conditions. Recently, a deep learning architecture…

量子物理 · 物理学 2023-06-28 Nishant Jain , Jonas Landman , Natansh Mathur , Iordanis Kerenidis

Coupled partial differential equations (PDEs) are key tasks in modeling the complex dynamics of many physical processes. Recently, neural operators have shown the ability to solve PDEs by learning the integral kernel directly in…

机器学习 · 计算机科学 2025-01-27 Xiongye Xiao , Defu Cao , Ruochen Yang , Gaurav Gupta , Gengshuo Liu , Chenzhong Yin , Radu Balan , Paul Bogdan

This study proposes a self-optimization physics-informed Fourier-features randomized neural network (SO-PIFRNN) framework, which significantly improves the numerical solving accuracy of PDEs through hyperparameter optimization mechanism.…

神经与进化计算 · 计算机科学 2025-08-18 Jiale Linghu , Weifeng Gao , Hao Dong , Yufeng Nie

Phase-space representations based on coherent states (P, Q, Wigner) have been successful in the creation of stochastic differential equations (SDEs) for the efficient stochastic simulation of high dimensional quantum systems. However many…

量子物理 · 物理学 2015-05-14 M. R. Hush , A. R. R. Carvalho , J. J. Hope

Physics-informed neural operators have emerged as a powerful paradigm for solving parametric partial differential equations (PDEs), particularly in the aerospace field, enabling the learning of solution operators that generalize across…

机器学习 · 计算机科学 2025-06-24 Jing Wang , Biao Chen , Hairun Xie , Rui Wang , Yifan Xia , Jifa Zhang , Hui Xu

Deep learning surrogate models have shown promise in solving partial differential equations (PDEs). Among them, the Fourier neural operator (FNO) achieves good accuracy, and is significantly faster compared to numerical solvers, on a…

机器学习 · 计算机科学 2024-05-03 Zongyi Li , Daniel Zhengyu Huang , Burigede Liu , Anima Anandkumar

We proposed a general quantum-computing-based algorithm that harnesses the exponential power of noisy intermediate-scale quantum (NISQ) devices in solving partial differential equations (PDE). This variational quantum eigensolver…

量子物理 · 物理学 2023-11-06 Dingjie Lu , Zhao Wang , Jun Liu , Yangfan Li , Wei-Bin Ewe , Zhuangjian Liu