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Motion planning is a key aspect of robotics. A common approach to address motion planning problems is trajectory optimization. Trajectory optimization can represent the high-level behaviors of robots through mathematical formulations.…

机器人学 · 计算机科学 2024-08-21 Fatemeh Rastgar

Efficient physics simulations are essential for numerous applications, ranging from realistic cloth animations or smoke effects in video games, to analyzing pollutant dispersion in environmental sciences, to calculating vehicle drag…

计算物理 · 物理学 2025-04-22 Nils Wandel , Stefan Schulz , Reinhard Klein

We introduce CODS (Computational Optimization in Design Space), a theoretical model that frames computational design as a constrained optimization problem over a structured, multi-dimensional design space. Unlike existing methods that rely…

人机交互 · 计算机科学 2025-06-24 Nan Cao , Xiaoyu Qi , Chuer Chen , Xiaoke Yan

A promising approach to optimal control of nonlinear systems involves iteratively linearizing the system and solving an optimization problem at each time instant to determine the optimal control input. Since this approach relies on online…

最优化与控制 · 数学 2025-01-30 Anran Li , John P. Swensen , Mehdi Hosseinzadeh

We propose a machine learning framework to accelerate numerical computations of time-dependent ODEs and PDEs. Our method is based on recasting (generalizations of) existing numerical methods as artificial neural networks, with a set of…

数值分析 · 数学 2019-03-08 Siddhartha Mishra

In computational physics, a longstanding challenge lies in finding numerical solutions to partial differential equations (PDEs). Recently, research attention has increasingly focused on Neural Operator methods, which are notable for their…

机器学习 · 计算机科学 2025-09-26 Yichen Song , Yalun Wu , Yunbo Wang , Xiaokang Yang

Existing neural operator architectures face challenges when solving multiphysics problems with coupled partial differential equations (PDEs) due to complex geometries, interactions between physical variables, and the limited amounts of…

Training of neural networks is a computationally intensive task. The significance of understanding and modeling the training dynamics is growing as increasingly larger networks are being trained. We propose in this work a model based on the…

机器学习 · 计算机科学 2022-12-20 Rotem Turjeman , Tom Berkov , Ido Cohen , Guy Gilboa

Neural operators (NOs) provide a new paradigm for efficiently solving partial differential equations (PDEs), but their training depends on costly high-fidelity data from numerical solvers, limiting applications in complex systems. We…

计算物理 · 物理学 2026-05-18 Wen You , Shaoqian Zhou , Xuhui Meng

Whilst the partial differential equations that govern the dynamics of our world have been studied in great depth for centuries, solving them for complex, high-dimensional conditions and domains still presents an incredibly large…

机器学习 · 计算机科学 2023-03-07 Edward Small

Deep learning models form one of the most powerful machine learning models for the extraction of important features. Most of the designs of deep neural models, i.e., the initialization of parameters, are still manually tuned. Hence,…

机器学习 · 计算机科学 2023-05-18 Mrittika Chakraborty , Wreetbhas Pal , Sanghamitra Bandyopadhyay , Ujjwal Maulik

Neural Combinatorial Optimization attempts to learn good heuristics for solving a set of problems using Neural Network models and Reinforcement Learning. Recently, its good performance has encouraged many practitioners to develop neural…

人工智能 · 计算机科学 2022-05-04 Andoni I. Garmendia , Josu Ceberio , Alexander Mendiburu

Neural networks have shown great potential in accelerating the solution of partial differential equations (PDEs). Recently, there has been a growing interest in introducing physics constraints into training neural PDE solvers to reduce the…

机器学习 · 计算机科学 2023-05-30 Xinquan Huang , Wenlei Shi , Qi Meng , Yue Wang , Xiaotian Gao , Jia Zhang , Tie-Yan Liu

Coordinate-based neural representations have shown significant promise as an alternative to discrete, array-based representations for complex low dimensional signals. However, optimizing a coordinate-based network from randomly initialized…

计算机视觉与模式识别 · 计算机科学 2021-03-24 Matthew Tancik , Ben Mildenhall , Terrance Wang , Divi Schmidt , Pratul P. Srinivasan , Jonathan T. Barron , Ren Ng

This paper presents a novel approach for constructing neural networks which model charged particle beam dynamics. In our approach, the Taylor maps arising in the representation of dynamics are mapped onto the weights of a polynomial neural…

神经与进化计算 · 计算机科学 2020-07-08 Andrei Ivanov , Ilya Agapov

Neural network pruning has become increasingly crucial due to the complexity of these models and their widespread use in various fields. Existing pruning algorithms often suffer from limitations such as architecture specificity, excessive…

机器学习 · 计算机科学 2024-06-11 Michele Mastromattei , Fabio Massimo Zanzotto

Neural operators extend data-driven models to map between infinite-dimensional functional spaces. These models have successfully solved continuous dynamical systems represented by differential equations, viz weather forecasting, fluid flow,…

机器学习 · 计算机科学 2023-10-13 Karn Tiwari , N M Anoop Krishnan , Prathosh A P

Training neural ODEs on large datasets has not been tractable due to the necessity of allowing the adaptive numerical ODE solver to refine its step size to very small values. In practice this leads to dynamics equivalent to many hundreds or…

机器学习 · 统计学 2020-06-24 Chris Finlay , Jörn-Henrik Jacobsen , Levon Nurbekyan , Adam M Oberman

We propose a neural network-based meta-learning method to efficiently solve partial differential equation (PDE) problems. The proposed method is designed to meta-learn how to solve a wide variety of PDE problems, and uses the knowledge for…

机器学习 · 统计学 2023-10-23 Tomoharu Iwata , Yusuke Tanaka , Naonori Ueda

We introduce the Neural Preconditioning Operator (NPO), a novel approach designed to accelerate Krylov solvers in solving large, sparse linear systems derived from partial differential equations (PDEs). Unlike classical preconditioners that…

计算工程、金融与科学 · 计算机科学 2025-02-10 Zhihao Li , Di Xiao , Zhilu Lai , Wei Wang
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