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Most machine learning methods are used as a black box for modelling. We may try to extract some knowledge from physics-based training methods, such as neural ODE (ordinary differential equation). Neural ODE has advantages like a possibly…

机器学习 · 计算机科学 2022-06-08 Yakov Golovanev , Alexander Hvatov

The present project aims to use machine learning, specifically neural networks (NN), to learn the trajectories of a set of coupled ordinary differential equations (ODEs) and decrease compute times for obtaining ODE solutions by using this…

机器学习 · 计算机科学 2020-09-18 Camila Faccini de Lima , Juliano Ferrari Gianlupi , John Metzcar , Juliette Zerick

In this paper we introduce a provably stable architecture for Neural Ordinary Differential Equations (ODEs) which achieves non-trivial adversarial robustness under white-box adversarial attacks even when the network is trained naturally.…

机器学习 · 计算机科学 2021-06-03 Yifei Huang , Yaodong Yu , Hongyang Zhang , Yi Ma , Yuan Yao

We propose a new approach to learning the subgrid-scale model when simulating partial differential equations (PDEs) solved by the method of lines and their representation in chaotic ordinary differential equations, based on neural ordinary…

数值分析 · 数学 2023-04-14 Shinhoo Kang , Emil M. Constantinescu

Physics-informed deep learning often faces optimization challenges due to the complexity of solving partial differential equations (PDEs), which involve exploring large solution spaces, require numerous iterations, and can lead to unstable…

Computational imaging has been revolutionized by compressed sensing algorithms, which offer guaranteed uniqueness, convergence, and stability properties. Model-based deep learning methods that combine imaging physics with learned…

计算机视觉与模式识别 · 计算机科学 2023-03-01 Aniket Pramanik , M. Bridget Zimmerman , Mathews Jacob

Image registration plays an important role in medical image analysis. Conventional optimization based methods provide an accurate estimation due to the iterative process at the cost of expensive computation. Deep learning methods such as…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Junshen Xu , Eric Z. Chen , Xiao Chen , Terrence Chen , Shanhui Sun

This work introduces NOVAK, a modular gradient-based optimization algorithm that integrates adaptive moment estimation, rectified learning-rate scheduling, decoupled weight regularization, multiple variants of Nesterov momentum, and…

机器学习 · 计算机科学 2026-01-14 Sergii Kavun

Continual Model Merging (CMM) enables rapid customization of foundation models by sequentially incorporating task-adapted models without repeated retraining. However, existing merging rules usually update the deployed model through fixed…

机器学习 · 计算机科学 2026-05-26 Lihong Lin , Haidong Kang

Backpropagation through (neural) SDE solvers is traditionally approached in two ways: discretise-then-optimise, which offers accurate gradients but incurs prohibitive memory costs; and optimise-then-discretise, which achieves constant…

机器学习 · 计算机科学 2026-05-12 Daniil Shmelev , Luke Thompson , Cristopher Salvi

We propose a new first-order optimization algorithm -- AcceleratedGradient-OptimisticGradient (AG-OG) Descent Ascent -- for separable convex-concave minimax optimization. The main idea of our algorithm is to carefully leverage the structure…

最优化与控制 · 数学 2023-08-16 Chris Junchi Li , Angela Yuan , Gauthier Gidel , Quanquan Gu , Michael I. Jordan

Irregular sampling intervals and missing values in real-world time series data present challenges for conventional methods that assume consistent intervals and complete data. Neural Ordinary Differential Equations (Neural ODEs) offer an…

机器学习 · 计算机科学 2025-01-28 YongKyung Oh , Dong-Young Lim , Sungil Kim

Neural Ordinary Differential Equations (NODEs) use a neural network to model the instantaneous rate of change in the state of a system. However, despite their apparent suitability for dynamics-governed time-series, NODEs present a few…

机器学习 · 计算机科学 2021-08-18 Alexander Norcliffe , Cristian Bodnar , Ben Day , Jacob Moss , Pietro Liò

Exploiting low-precision computations has become a standard strategy in deep learning to address the growing computational costs imposed by ever larger models and datasets. However, naively performing all computations in low precision can…

机器学习 · 计算机科学 2026-05-01 Elena Celledoni , Brynjulf Owren , Lars Ruthotto , Tianjiao Nicole Yang

Neural ODEs (NODEs) are continuous-time neural networks (NNs) that can process data without the limitation of time intervals. They have advantages in learning and understanding the evolution of complex real dynamics. Many previous works…

机器学习 · 计算机科学 2024-11-05 Wenjie Mei , Dongzhe Zheng , Shihua Li

We present a hybrid transformer architecture that replaces discrete middle layers with a continuous-depth Neural Ordinary Differential Equation (ODE) block, enabling inference-time control over generation attributes via a learned steering…

机器学习 · 计算机科学 2026-01-16 Peter Jemley

Foundation models have transformed language, vision, and time series data analysis, yet progress on dynamic predictions for physical systems remains limited. Given the complexity of physical constraints, two challenges stand out. $(i)$…

机器学习 · 计算机科学 2026-02-05 Haoran Li , Chenhan Xiao , Lihao Mai , Yang Weng , Erik Blasch

Neural ordinary differential equations describe how values change in time. This is the reason why they gained importance in modeling sequential data, especially when the observations are made at irregular intervals. In this paper we propose…

机器学习 · 计算机科学 2021-10-26 Marin Biloš , Johanna Sommer , Syama Sundar Rangapuram , Tim Januschowski , Stephan Günnemann

This paper proposes the Nerual Energy Descent (NED) via neural network evolution equations for a wide class of deep learning problems. We show that deep learning can be reformulated as the evolution of network parameters in an evolution…

数值分析 · 数学 2023-02-22 Wenrui Hao , Chunmei Wang , Xingjian Xu , Haizhao Yang

Much recent interest has focused on the design of optimization algorithms from the discretization of an associated optimization flow, i.e., a system of differential equations (ODEs) whose trajectories solve an associated optimization…

最优化与控制 · 数学 2022-02-02 Pedro Cisneros-Velarde , Francesco Bullo