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3D Gaussian Splatting (3DGS) has emerged as a powerful explicit representation enabling real-time, high-fidelity 3D reconstruction and novel view synthesis. However, its practical use is hindered by the massive memory and computational…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Seokhyun Youn , Soohyun Lee , Geonho Kim , Weeyoung Kwon , Sung-Ho Bae , Jihyong Oh

Projected gradient descent has been proved efficient in many optimization and machine learning problems. The weighted $\ell_1$ ball has been shown effective in sparse system identification and features selection. In this paper we propose…

机器学习 · 计算机科学 2020-09-08 Guillaume Perez , Sebastian Ament , Carla Gomes , Michel Barlaud

Pseudo-spectral method is one of the most accurate techniques for simulating turbulent flows. Fast Fourier transform (FFT) is an integral part of this method. In this paper, we present a new procedure to compute FFT in which we save…

数学软件 · 计算机科学 2014-06-24 A. G. Chatterjee , M. K. Verma , M. Chaudhuri

The method of stable random projections is a tool for efficiently computing the $l_\alpha$ distances using low memory, where $0<\alpha \leq 2$ is a tuning parameter. The method boils down to a statistical estimation task and various…

机器学习 · 计算机科学 2008-12-18 Ping Li

Our objective is to efficiently design a robust projection matrix $\Phi$ for the Compressive Sensing (CS) systems when applied to the signals that are not exactly sparse. The optimal projection matrix is obtained by mainly minimizing the…

机器学习 · 计算机科学 2017-09-07 Tao Hong , Zhihui Zhu

Recent advances in 3D Gaussian Splatting (3DGS) have focused on accelerating optimization while preserving reconstruction quality. However, many proposed methods entangle implementation-level improvements with fundamental algorithmic…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Florian Hahlbohm , Linus Franke , Martin Eisemann , Marcus Magnor

We study the well-known methods of alternating and simultaneous projections when applied to two nonorthogonal linear subspaces of a real Euclidean space. Assuming that both of the methods have a common starting point chosen from either one…

最优化与控制 · 数学 2023-11-15 Simeon Reich , Rafał Zalas

In ghost imaging schemes information about an object is extracted by measuring the correlation between a beam that passed the object and a reference beam. We present a spatial averaging technique that substantially improves the imaging…

量子物理 · 物理学 2009-11-10 M. Bache , E. Brambilla , A. Gatti , L. A. Lugiato

The convergence and numerical analysis of a low memory implementation of the Orthogonal Matching Pursuit greedy strategy, which is termed Self Projected Matching Pursuit, is presented. This approach renders an iterative way of solving the…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Laura Rebollo-Neira , Miroslav Rozloznik , Pradip Sasmal

The dense output projection in multi head attention scales quadratically with model dimension, contributing significantly to parameter count, memory footprint, and inference cost. We propose replacing this projection with a fixed, parameter…

机器学习 · 计算机科学 2026-03-31 Shubham Aggarwal , Lokendra Kumar

Recently, width-based planning methods have been shown to yield state-of-the-art results in the Atari 2600 video games. For this, the states were associated with the (RAM) memory states of the simulator. In this work, we consider the same…

人工智能 · 计算机科学 2018-01-11 Wilmer Bandres , Blai Bonet , Hector Geffner

Optimization algorithms such as projected Newton's method, FISTA, mirror descent, and its variants enjoy near-optimal regret bounds and convergence rates, but suffer from a computational bottleneck of computing ``projections'' in…

机器学习 · 计算机科学 2023-03-13 Jai Moondra , Hassan Mortagy , Swati Gupta

Frank-Wolfe algorithm (FW) and its variants have gained a surge of interests in machine learning community due to its projection-free property. Recently people have reduced the gradient evaluation complexity of FW algorithm to…

机器学习 · 统计学 2018-05-22 Yan Li , Chao Qu , Huan Xu

The discrete prolate spheroidal sequences (DPSS's) provide an efficient representation for discrete signals that are perfectly timelimited and nearly bandlimited. Due to the high computational complexity of projecting onto the DPSS basis -…

数值分析 · 数学 2017-08-14 Santhosh Karnik , Zhihui Zhu , Michael B. Wakin , Justin Romberg , Mark A. Davenport

We propose the complex-plane generalization of a powerful algebraic sequence acceleration algorithm, the Method of Weighted Averages (MWA), to guarantee exponential-cum-algebraic convergence of Fourier and Fourier-Hankel (F-H) integral…

计算物理 · 物理学 2016-02-17 Kamalesh Sainath , Fernando Teixeira , Burkay Donderici

Image computation is a fundamental tool for performance assessment of astronomical instrumentation, usually implemented by Fourier transform techniques. We review the numerical implementation, evaluating a direct implementation of the…

天体物理学 · 物理学 2008-11-26 M. Gai , R. Cancelliere

In this work we study the method of Bregman projections for deterministic and stochastic convex feasibility problems with three types of control sequences for the selection of sets during the algorithmic procedure: greedy, random, and…

最优化与控制 · 数学 2021-01-06 Vladimir Kostic , Saverio Salzo

This paper aims to enhance the use of the Frank-Wolfe (FW) algorithm for training deep neural networks. Similar to any gradient-based optimization algorithm, FW suffers from high computational and memory costs when computing gradients for…

机器学习 · 计算机科学 2024-12-30 M. Rostami , S. S. Kia

Many variants of Optimal Transport (OT) have been developed to address its heavy computation. Among them, notably, Sliced Wasserstein (SW) is widely used for application domains by projecting the OT problem onto one-dimensional lines, and…

机器学习 · 计算机科学 2025-06-10 Viet-Hoang Tran , Trang Pham , Tho Tran , Minh Khoi Nguyen Nhat , Thanh Chu , Tam Le , Tan M. Nguyen

In recent years, there have been several advancements in the task of image super-resolution using the state of the art Deep Learning-based architectures. Many super-resolution-based techniques previously published, require high-end and…

图像与视频处理 · 电气工程与系统科学 2022-04-12 Koushik Sivarama Krishnan , Karthik Sivarama Krishnan