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(Partial) differential equations (PDEs) are fundamental tools for describing natural phenomena, making their solution crucial in science and engineering. While traditional methods, such as the finite element method, provide reliable…

机器学习 · 计算机科学 2025-03-11 Viggo Moro , Luiz F. O. Chamon

Many Krylov subspace methods for shifted linear systems take advantage of the invariance of the Krylov subspace under a shift of the matrix. However, exploiting this fact in the non-Hermitian case introduces restrictions; e.g., initial…

数值分析 · 数学 2016-02-05 Kirk M. Soodhalter

Built upon the decision tree (DT) classification and regression idea, the subspace learning machine (SLM) has been recently proposed to offer higher performance in general classification and regression tasks. Its performance improvement is…

机器学习 · 计算机科学 2022-08-16 Hongyu Fu , Yijing Yang , Yuhuai Liu , Joseph Lin , Ethan Harrison , Vinod K. Mishra , C. -C. Jay Kuo

Block Krylov subspace methods (KSMs) comprise building blocks in many state-of-the-art solvers for large-scale matrix equations as they arise, e.g., from the discretization of partial differential equations. While extended and rational…

数值分析 · 数学 2020-02-06 Daniel Kressner , Kathryn Lund , Stefano Massei , Davide Palitta

The intrinsic dynamics and event-driven nature of spiking neural networks (SNNs) make them excel in processing temporal information by naturally utilizing embedded time sequences as time steps. Recent studies adopting this approach have…

机器学习 · 计算机科学 2024-12-18 Jiaqi Wang , Liutao Yu , Liwei Huang , Chenlin Zhou , Han Zhang , Zhenxi Song , Min Zhang , Zhengyu Ma , Zhiguo Zhang

Tabular data synthesis for supervised learning ('SL') model training is gaining popularity in industries such as healthcare, finance, and retail. Despite the progress made in tabular data generators, models trained with synthetic data often…

机器学习 · 计算机科学 2025-07-15 Tung Sum Thomas Kwok , Zeyong Zhang , Chi-Hua Wang , Guang Cheng

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

While the next-token prediction (NTP) paradigm enables large language models (LLMs) to express their intrinsic knowledge, its sequential nature constrains performance on specialized, non-generative tasks. We attribute this performance…

计算与语言 · 计算机科学 2026-04-28 Mengyu Wang , Xiaoying Zhi , Zhiyi Li , Robin Schmucker , Shay B. Cohen , Tiejun Ma , Fran Silavong

Coded computation techniques provide robustness against straggling workers in distributed computing. However, most of the existing schemes require exact provisioning of the straggling behaviour and ignore the computations carried out by…

信息论 · 计算机科学 2021-12-07 Emre Ozfatura , Sennur Ulukus , Deniz Gunduz

This paper develops a new class of Rosenbrock-type integrators based on a Krylov space solution of the linear systems. The new family, called Rosenbrock-Krylov (Rosenbrock-K), is well suited for solving large scale systems of ODEs or…

数值分析 · 数学 2015-01-30 Paul Tranquilli , Adrian Sandu

In nonlinear imaging problems whose forward model is described by a partial differential equation (PDE), the main computational bottleneck in solving the inverse problem is the need to solve many large-scale discretized PDEs at each step of…

数值分析 · 数学 2016-03-08 Meghan O'Connell , Misha E. Kilmer , Eric de Sturler , Serkan Gugercin

We consider the problem of training a least-squares regression model on a large dataset using gradient descent. The computation is carried out on a distributed system consisting of a master node and multiple worker nodes. Such distributed…

Generative artificial intelligence has transformed the generation of synthetic data, providing innovative solutions to challenges like data scarcity and privacy, which are particularly critical in fields such as medicine. However, the…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Eugenio Lomurno , Matteo Matteucci

Recent years have witnessed the promise of coupling machine learning methods and physical domain-specific insights for solving scientific problems based on partial differential equations (PDEs). However, being data-intensive, these methods…

机器学习 · 计算机科学 2025-06-03 Wuyang Chen , Jialin Song , Pu Ren , Shashank Subramanian , Dmitriy Morozov , Michael W. Mahoney

Eigenvalue problems are among the most important topics in many scientific disciplines. With the recent surge and development of machine learning, neural eigenvalue methods have attracted significant attention as a forward pass of inference…

机器学习 · 计算机科学 2026-04-28 Hong Wang , Jie Wang , Jian Luo , huanshuo dong , Yeqiu Chen , Runmin Jiang , Zhen huang

Semi-supervised learning (SSL) algorithms have had great success in recent years in limited labeled data regimes. However, the current state-of-the-art SSL algorithms are computationally expensive and entail significant compute time and…

机器学习 · 计算机科学 2021-10-29 Krishnateja Killamsetty , Xujiang Zhao , Feng Chen , Rishabh Iyer

The convergence of Krylov-based linear iterative solvers applied to parametric partial differential equations (PDEs) is often highly sensitive to the domain, its discretization, the location/values of the applied Dirichlet/Neumann boundary…

Krylov methods are a key way of solving large sparse linear systems of equations, but suffer from poor strong scalabilty on distributed memory machines. This is due to high synchronization costs from large numbers of collective…

分布式、并行与集群计算 · 计算机科学 2022-03-14 Shelby Lockhart , Amanda Bienz , William Gropp , Luke Olson

We propose a fast algorithm for computing the entire ridge regression regularization path in nearly linear time. Our method constructs a basis on which the solution of ridge regression can be computed instantly for any value of the…

最优化与控制 · 数学 2022-10-25 Yifei Wang , Mert Pilanci

The application of kernel-based Machine Learning (ML) techniques to discrete choice modelling using large datasets often faces challenges due to memory requirements and the considerable number of parameters involved in these models. This…