中文
相关论文

相关论文: Robust Low-tubal-rank Tensor Completion based on T…

200 篇论文

We consider the problem of learning low-rank tensors from partial observations with structural constraints, and propose a novel factorization of such tensors, which leads to a simpler optimization problem. The resulting problem is an…

机器学习 · 计算机科学 2023-05-16 Jayadev Naram , Tanmay Kumar Sinha , Pawan Kumar

We study low rank matrix and tensor completion and propose novel algorithms that employ adaptive sampling schemes to obtain strong performance guarantees. Our algorithms exploit adaptivity to identify entries that are highly informative for…

机器学习 · 统计学 2013-11-12 Akshay Krishnamurthy , Aarti Singh

The goal of this paper is to find a low-rank approximation for a given tensor. Specifically, we give a computable strategy on calculating the rank of a given tensor, based on approximating the solution to an NP-hard problem. In this paper,…

数值分析 · 数学 2016-10-20 Xiaofei Wang , Carmeliza Navasca

Low-rank tensor recovery problems have been widely studied in many applications of signal processing and machine learning. Tucker decomposition is known as one of the most popular decompositions in the tensor framework. In recent years,…

数值分析 · 数学 2020-07-17 Rachel Grotheer , Shuang Li , Anna Ma , Deanna Needell , Jing Qin

Tensor completion is an important problem in modern data analysis. In this work, we investigate a specific sampling strategy, referred to as tubal sampling. We propose two novel non-convex tensor completion frameworks that are easy to…

机器学习 · 计算机科学 2023-05-31 Zheng Tan , Longxiu Huang , HanQin Cai , Yifei Lou

In this paper we consider the problem of recovering a low-rank Tucker approximation to a massive tensor based solely on structured random compressive measurements. Crucially, the proposed random measurement ensembles are both designed to be…

信息论 · 计算机科学 2023-08-29 Cullen Haselby , Mark A. Iwen , Deanna Needell , Elizaveta Rebrova , William Swartworth

The main challenge with the tensor completion problem is a fundamental tension between computation power and the information-theoretic sample complexity rate. Past approaches either achieve the information-theoretic rate but lack practical…

最优化与控制 · 数学 2024-04-05 Xin Chen , Sukanya Kudva , Yongzheng Dai , Anil Aswani , Chen Chen

Currently, low-rank tensor completion has gained cumulative attention in recovering incomplete visual data whose partial elements are missing. By taking a color image or video as a three-dimensional (3D) tensor, previous studies have…

计算机视觉与模式识别 · 计算机科学 2018-05-29 Shengke Xue , Wenyuan Qiu , Fan Liu , Xinyu Jin

In low-rank tensor completion tasks, due to the underlying multiple large-scale singular value decomposition (SVD) operations and rank selection problem of the traditional methods, they suffer from high computational cost and high…

数值分析 · 计算机科学 2018-05-23 Longhao Yuan , Chao Li , Danilo Mandic , Jianting Cao , Qibin Zhao

Dimension reduction techniques are often used when the high-dimensional tensor has relatively low intrinsic rank compared to the ambient dimension of the tensor. The CANDECOMP/PARAFAC (CP) tensor completion is a widely used approach to find…

数值分析 · 数学 2021-04-01 Jiahua Jiang , Fatoumata Sanogo , Carmeliza Navasca

This paper focus on recovering multi-dimensional data called tensor from randomly corrupted incomplete observation. Inspired by reweighted $l_1$ norm minimization for sparsity enhancement, this paper proposes a reweighted singular value…

计算机视觉与模式识别 · 计算机科学 2017-07-11 Baburaj M. , Sudhish N. George

One of the popular approaches for low-rank tensor completion is to use the latent trace norm regularization. However, most existing works in this direction learn a sparse combination of tensors. In this work, we fill this gap by proposing a…

机器学习 · 计算机科学 2018-11-13 Madhav Nimishakavi , Pratik Jawanpuria , Bamdev Mishra

We propose an adaptive and provably accurate tensor completion approach based on combining matrix completion techniques (see, e.g., arXiv:0805.4471, arXiv:1407.3619, arXiv:1306.2979) for a small number of slices with a modified noise robust…

数值分析 · 数学 2023-07-06 Cullen Haselby , Santhosh Karnik , Mark Iwen

Low-rank tensor sensing is a fundamental problem with broad applications in signal processing and machine learning. Among various tensor models, low-Tucker-rank tensors are particularly attractive for capturing multi-mode subspace…

机器学习 · 计算机科学 2026-01-21 Shuang Li

In this paper we propose efficient randomized fixed-precision techniques for low tubal rank approximation of tensors. The proposed methods are faster and more efficient than the existing fixed-precision algorithms for approximating the…

Effective non-parametric density estimation is a key challenge in high-dimensional multivariate data analysis. In this paper,we propose a novel approach that builds upon tensor factorization tools. Any multivariate density can be…

机器学习 · 统计学 2022-10-19 Magda Amiridi , Nikos Kargas , Nicholas D. Sidiropoulos

Tensor completion is a problem of filling the missing or unobserved entries of partially observed tensors. Due to the multidimensional character of tensors in describing complex datasets, tensor completion algorithms and their applications…

机器学习 · 统计学 2018-05-04 Qingquan Song , Hancheng Ge , James Caverlee , Xia Hu

Robust tensor completion (RTC) aims to recover a low-rank tensor from its incomplete observation with outlier corruption. The recently proposed tensor ring (TR) model has demonstrated superiority in solving the RTC problem. However, the…

机器学习 · 计算机科学 2023-02-16 Zhenhao Huang , Yuning Qiu , Xinqi Chen , Weijun Sun , Guoxu Zhou

Low rank tensor ring model is powerful for image completion which recovers missing entries in data acquisition and transformation. The recently proposed tensor ring (TR) based completion algorithms generally solve the low rank optimization…

机器学习 · 统计学 2021-04-07 Zhen Long , Ce Zhu , Jiani Liu , Yipeng Liu

The linear transform-based tensor nuclear norm (TNN) methods have recently obtained promising results for tensor completion. The main idea of this type of methods is exploiting the low-rank structure of frontal slices of the targeted tensor…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Ben-Zheng Li , Xi-Le Zhao , Teng-Yu Ji , Xiong-Jun Zhang , Ting-Zhu Huang