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We investigate new developments of the combined Reduced-Basis and Empirical Interpolation Methods (RB-EIM) for parametrized nonlinear parabolic problems. In many situations, the cost of the EIM in the offline stage turns out to be…

数值分析 · 数学 2018-04-23 Amina Benaceur , Alexandre Ern , Virginie Ehrlacher , Sébastien Meunier

Subsampling methods aim to select a subsample as a surrogate for the observed sample. As a powerful technique for large-scale data analysis, various subsampling methods are developed for more effective coefficient estimation and model…

统计方法学 · 统计学 2021-05-05 Tao Li , Cheng Meng

The coresets approach, also called subsampling or subset selection, aims to select a subsample as a surrogate for the observed sample and has found extensive applications in large-scale data analysis. Existing coresets methods construct the…

统计计算 · 统计学 2024-09-17 Mengyu Li , Jun Yu , Tao Li , Cheng Meng

Splitting network computations between the edge device and a server enables low edge-compute inference of neural networks but might expose sensitive information about the test query to the server. To address this problem, existing…

This work addresses inverse linear optimization where the goal is to infer the unknown cost vector of a linear program. Specifically, we consider the data-driven setting in which the available data are noisy observations of optimal…

最优化与控制 · 数学 2021-12-07 Rishabh Gupta , Qi Zhang

Subsampling methods have been recently proposed to speed up least squares estimation in large scale settings. However, these algorithms are typically not robust to outliers or corruptions in the observed covariates. The concept of influence…

机器学习 · 统计学 2014-06-20 Brian McWilliams , Gabriel Krummenacher , Mario Lucic , Joachim M. Buhmann

Huge amount of data is the key of the success of deep learning, however, redundant information impairs the generalization ability of the model and increases the burden of calculation. Dataset Distillation (DD) compresses the original…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Hangyang Kong , Wenbo Zhou , Xuxiang He , Xiaotong Tu , Xinghao Ding

This paper is interested in developing reduced order models (ROMs) for repeated simulation of fractional elliptic partial differential equations (PDEs) for multiple values of the parameters (e.g., diffusion coefficients or fractional…

数值分析 · 数学 2023-06-30 Harbir Antil , Arvind K. Saibaba

Recent studies show that, both explicit deep feature matching as well as large-scale and diverse training data can significantly improve the generalization of person re-identification. However, the efficiency of learning deep matchers on…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Shengcai Liao , Ling Shao

We propose a deep supervised learning algorithm based on low-discrepancy sequences as the training set. By a combination of theoretical arguments and extensive numerical experiments we demonstrate that the proposed algorithm significantly…

机器学习 · 计算机科学 2020-05-27 Siddhartha Mishra , T. Konstantin Rusch

In this work, we investigate the performance CutFEM as a high fidelity solver as well as we construct a competent and economical reduced order solver for PDE-constrained optimization problems in parametrized domains that live in a fixed…

数值分析 · 数学 2022-04-11 Georgios Katsouleas , Efthymios N. Karatzas , Fotios Travlopanos

We develop and analyze a new algorithm for empirical risk minimization, which is the key paradigm for training supervised machine learning models. Our method---SAGD---is based on a probabilistic interpolation of SAGA and gradient descent…

最优化与控制 · 数学 2020-04-03 Adel Bibi , Alibek Sailanbayev , Bernard Ghanem , Robert Mansel Gower , Peter Richtárik

This paper proposes and tests the first-ever reduced basis warm-start iterative method for the parametrized linear systems, exemplified by those discretizing the parametric partial differential equations. Traditional iterative methods are…

数值分析 · 数学 2024-01-08 Shijin Hou , Yanlai Chen , Yinhua Xia

While training on samples drawn from independent and identical distribution has been a de facto paradigm for optimizing image classification networks, humans learn new concepts in an easy-to-hard manner and on the selected examples…

计算机视觉与模式识别 · 计算机科学 2020-10-16 Bowen Cheng , Yunchao Wei , Jiahui Yu , Shiyu Chang , Jinjun Xiong , Wen-Mei Hwu , Thomas S. Huang , Humphrey Shi

Deep metric learning maps visually similar images onto nearby locations and visually dissimilar images apart from each other in an embedding manifold. The learning process is mainly based on the supplied image negative and positive training…

计算机视觉与模式识别 · 计算机科学 2020-09-14 Chang-Hui Liang , Wan-Lei Zhao , Run-Qing Chen

Many computer vision systems require low-cost segmentation algorithms based on deep learning, either because of the enormous size of input images or limited computational budget. Common solutions uniformly downsample the input images to…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Chen Jin , Ryutaro Tanno , Thomy Mertzanidou , Eleftheria Panagiotaki , Daniel C. Alexander

A parametric model order reduction (MOR) approach for simulating the high dimensional models arising in financial risk analysis is proposed on the basis of the proper orthogonal decomposition (POD) approach to generate small model…

数值分析 · 数学 2021-10-05 Andreas Binder , Onkar Jadhav , Volker Mehrmann

Dynamic Mode Decomposition (DMD) is a model-order reduction approach, whereby spatial modes of fixed temporal frequencies are extracted from numerical or experimental data sets. The DMD low-rank or reduced operator is typically obtained by…

数值分析 · 数学 2023-01-25 Quincy A. Huhn , Mauricio E. Tano , Jean C. Ragusa , Youngsoo Choi

Online class-incremental learning aims to enable models to continuously adapt to new classes with limited access to past data, while mitigating catastrophic forgetting. Replay-based methods address this by maintaining a small memory buffer…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Mingchuan Ma , Yuhao Zhou , Jindi Lv , Yuxin Tian , Dan Si , Shujian Li , Qing Ye , Jiancheng Lv

We study the problem of sampling and reconstruction of bandlimited graph signals where the objective is to select a node subset of prescribed cardinality that ensures interpolation of the original signal with the lowest reconstruction…

信号处理 · 电气工程与系统科学 2018-07-20 Abolfazl Hashemi , Rasoul Shafipour , Haris Vikalo , Gonzalo Mateos