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Matrices are exceptionally useful in various fields of study as they provide a convenient framework to organize and manipulate data in a structured manner. However, modern matrices can involve billions of elements, making their storage and…

机器学习 · 计算机科学 2023-10-18 Rajarshi Saha , Varun Srivastava , Mert Pilanci

Subspace clustering refers to the problem of segmenting a set of data points approximately drawn from a union of multiple linear subspaces. Aiming at the subspace clustering problem, various subspace clustering algorithms have been proposed…

计算机视觉与模式识别 · 计算机科学 2016-10-17 Yu Song , Yiquan Wu

We extend the theory of low-rank matrix recovery and completion to the case when Poisson observations for a linear combination or a subset of the entries of a matrix are available, which arises in various applications with count data. We…

机器学习 · 计算机科学 2016-04-20 Yang Cao , Yao Xie

For the problems of low-rank matrix completion, the efficiency of the widely-used nuclear norm technique may be challenged under many circumstances, especially when certain basis coefficients are fixed, for example, the low-rank correlation…

最优化与控制 · 数学 2015-06-23 Weimin Miao , Shaohua Pan , Defeng Sun

Multiple rotation averaging plays a crucial role in computer vision and robotics domains. The conventional optimization-based methods optimize a nonlinear cost function based on certain noise assumptions, while most previous learning-based…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Shiqi Li , Jihua Zhu , Yifan Xie , Naiwen Hu , Mingchen Zhu , Zhongyu Li , Di Wang

In this paper, we study first-order methods on a large variety of low-rank matrix optimization problems, whose solutions only live in a low dimensional eigenspace. Traditional first-order methods depend on the eigenvalue decomposition at…

最优化与控制 · 数学 2019-04-25 Yongfeng Li , Haoyang Liu , Zaiwen Wen , Yaxiang Yuan

We address the collective matrix completion problem of jointly recovering a collection of matrices with shared structure from partial (and potentially noisy) observations. To ensure well--posedness of the problem, we impose a joint low rank…

机器学习 · 统计学 2015-04-09 Suriya Gunasekar , Makoto Yamada , Dawei Yin , Yi Chang

The Nystrom method is an efficient technique used to speed up large-scale learning applications by generating low-rank approximations. Crucial to the performance of this technique is the assumption that a matrix can be well approximated by…

机器学习 · 计算机科学 2014-08-12 Ameet Talwalkar , Afshin Rostamizadeh

Using the matrix product state (MPS) representation of tensor train decompositions, in this paper we propose a tensor completion algorithm which alternates over the matrices (tensors) in the MPS representation. This development is motivated…

数值分析 · 计算机科学 2016-10-03 Wenqi Wang , Vaneet Aggarwal , Shuchin Aeron

We consider the related tasks of matrix completion and matrix approximation from missing data and propose adaptive sampling procedures for both problems. We show that adaptive sampling allows one to eliminate standard incoherence…

机器学习 · 统计学 2014-07-15 Akshay Krishnamurthy , Aarti Singh

Matrix factorization is a widely used approach for top-N recommendation and collaborative filtering. When implemented on implicit feedback data (such as clicks), a common heuristic is to upweight the observed interactions. This strategy has…

信息检索 · 计算机科学 2025-10-14 Alex Ayoub , Samuel Robertson , Dawen Liang , Harald Steck , Nathan Kallus

We consider the problem of finding weights and biases for a two-layer fully connected neural network to fit a given set of data points as well as possible, also known as EmpiricalRiskMinimization. Our main result is that the associated…

计算复杂性 · 计算机科学 2024-03-25 Daniel Bertschinger , Christoph Hertrich , Paul Jungeblut , Tillmann Miltzow , Simon Weber

Support for arithmetic in multiple precisions and number formats is becoming increasingly common in emerging high-performance architectures. From a computational scientist's perspective, our goal is to determine how and where we can safely…

数值分析 · 数学 2026-02-05 Erin Claire Carson

We give the first algorithm for Matrix Completion whose running time and sample complexity is polynomial in the rank of the unknown target matrix, linear in the dimension of the matrix, and logarithmic in the condition number of the matrix.…

机器学习 · 计算机科学 2014-07-16 Moritz Hardt , Mary Wootters

Low-rank modeling plays a pivotal role in signal processing and machine learning, with applications ranging from collaborative filtering, video surveillance, medical imaging, to dimensionality reduction and adaptive filtering. Many modern…

机器学习 · 统计学 2018-05-04 Yudong Chen , Yuejie Chi

The paper presents complexity results and performance guaranties for a family of approximation algorithms for an optimisation problem arising in software testing and manufacturing. The problem is formulated as a partitioning of a set where…

数据结构与算法 · 计算机科学 2022-12-13 Yakov Zinder , Bertrand M. T. Lin , Joanna Berlińska

In this article, we introduce a novel normalization technique for neural network weight matrices, which we term weight conditioning. This approach aims to narrow the gap between the smallest and largest singular values of the weight…

计算机视觉与模式识别 · 计算机科学 2026-03-16 Hemanth Saratchandran , Thomas X. Wang , Simon Lucey

Minimizing the rank of a matrix subject to constraints is a challenging problem that arises in many applications in control theory, machine learning, and discrete geometry. This class of optimization problems, known as rank minimization, is…

最优化与控制 · 数学 2016-11-17 Benjamin Recht , Weiyu Xu , Babak Hassibi

The process of rank aggregation is intimately intertwined with the structure of skew-symmetric matrices. We apply recent advances in the theory and algorithms of matrix completion to skew-symmetric matrices. This combination of ideas…

数值分析 · 计算机科学 2011-02-24 David F. Gleich , Lek-Heng Lim

Tensor completion is a fundamental tool for incomplete data analysis, where the goal is to predict missing entries from partial observations. However, existing methods often make the explicit or implicit assumption that the observed entries…

机器学习 · 统计学 2022-03-18 Yuning Qiu , Guoxu Zhou , Qibin Zhao , Shengli Xie