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Linear systems with a tensor product structure arise naturally when considering the discretization of Laplace type differential equations or, more generally, multidimensional operators with separable coefficients. In this work, we focus on…

数值分析 · 数学 2023-11-03 Stefano Massei , Leonardo Robol

High-dimensional tensors or multi-way data are becoming prevalent in areas such as biomedical imaging, chemometrics, networking and bibliometrics. Traditional approaches to finding lower dimensional representations of tensor data include…

机器学习 · 统计学 2012-02-14 Genevera I. Allen

We provide guarantees for learning latent variable models emphasizing on the overcomplete regime, where the dimensionality of the latent space can exceed the observed dimensionality. In particular, we consider multiview mixtures, spherical…

机器学习 · 计算机科学 2014-12-18 Animashree Anandkumar , Rong Ge , Majid Janzamin

Motivated by the settings where sensing the entire tensor is infeasible, this paper proposes a novel tensor compressed sensing model, where measurements are only obtained from sensing each lateral slice via mutually independent matrices.…

机器学习 · 计算机科学 2024-12-24 Tongle Wu , Ying Sun , Jicong Fan

In this work we propose a nonconvex two-stage \underline{s}tochastic \underline{a}lternating \underline{m}inimizing (SAM) method for sparse phase retrieval. The proposed algorithm is guaranteed to have an exact recovery from $O(s\log n)$…

数值分析 · 数学 2022-11-23 Jian-Feng Cai , Yuling Jiao , Xiliang Lu , Juntao You

The fully-connected tensor network (FCTN) decomposition has gained prominence in the field of tensor completion owing to its powerful capacity to capture the low-rank characteristics of tensors. Nevertheless, the recovery of local details…

数值分析 · 数学 2025-10-28 Wenchao Xie , Qingsong Wang , Chengcheng Yan , Zheng Peng

In this article, we derive a Bayesian model to learning the sparse and low rank PARAFAC decomposition for the observed tensor with missing values via the elastic net, with property to find the true rank and sparse factor matrix which is…

数值分析 · 数学 2017-05-30 Songting Shi , Xiang Li , Arkadiusz Sitek , Quanzheng Li

In this paper we propose a new inexact dual decomposition algorithm for solving separable convex optimization problems. This algorithm is a combination of three techniques: dual Lagrangian decomposition, smoothing and excessive gap. The…

最优化与控制 · 数学 2013-02-11 Quoc Tran Dinh , Ion Necoara , Moritz Diehl

The low multilinear rank approximation, also known as the truncated Tucker decomposition, has been extensively utilized in many applications that involve higher-order tensors. Popular methods for low multilinear rank approximation usually…

数值分析 · 数学 2021-04-05 Chuanfu Xiao , Chao Yang , Min Li

The advancement of sensing technology has driven the widespread application of high-dimensional data. However, issues such as missing entries during acquisition and transmission negatively impact the accuracy of subsequent tasks. Tensor…

图像与视频处理 · 电气工程与系统科学 2025-04-09 Jie Yang , Chang Su , Yuhan Zhang , Jianjun Zhu , Jianli Wang

We analyze the Accelerated Noisy Power Method, an algorithm for Principal Component Analysis in the setting where only inexact matrix-vector products are available, which can arise for instance in decentralized PCA. While previous works…

机器学习 · 统计学 2026-02-04 Pierre Aguié , Mathieu Even , Laurent Massoulié

Multi-relational learning has received lots of attention from researchers in various research communities. Most existing methods either suffer from superlinear per-iteration cost, or are sensitive to the given ranks. To address both issues,…

机器学习 · 计算机科学 2016-01-19 Fanhua Shang , James Cheng , Hong Cheng

Tensor completion is a technique of filling missing elements of the incomplete data tensors. It being actively studied based on the convex optimization scheme such as nuclear-norm minimization. When given data tensors include some noises,…

计算机视觉与模式识别 · 计算机科学 2018-01-11 Tatsuya Yokota , Hidekata Hontani

We study a practical algorithm for sparse principal component analysis (PCA) of incomplete and noisy data. Our algorithm is based on the semidefinite program (SDP) relaxation of the non-convex $l_1$-regularized PCA problem. We provide…

机器学习 · 统计学 2022-09-16 Hanbyul Lee , Qifan Song , Jean Honorio

A new paradigm for large-scale spectrum occupancy learning based on long short-term memory (LSTM) recurrent neural networks is proposed. Studies have shown that spectrum usage is a highly correlated time series. Moreover, there is a…

信号处理 · 电气工程与系统科学 2019-05-14 Mohsen Joneidi , Ismail Alkhouri , Nazanin Rahnavard

Tensor decomposition is a well-known tool for multiway data analysis. This work proposes using stochastic gradients for efficient generalized canonical polyadic (GCP) tensor decomposition of large-scale tensors. GCP tensor decomposition is…

数值分析 · 数学 2020-11-25 Tamara G. Kolda , David Hong

Due to the explosive growth of large-scale data sets, tensors have been a vital tool to analyze and process high-dimensional data. Different from the matrix case, tensor decomposition has been defined in various formats, which can be…

最优化与控制 · 数学 2023-12-27 Rachel Grotheer , Shuang Li , Anna Ma , Deanna Needell , Jing Qin

Compressed sensing extends from the recovery of sparse vectors from undersampled measurements via efficient algorithms to the recovery of matrices of low rank from incomplete information. Here we consider a further extension to the…

数值分析 · 数学 2014-11-04 Holger Rauhut , Reinhold Schneider , Zeljka Stojanac

This work studies the Tensor Robust Principal Component Analysis (TRPCA) problem, which aims to exactly recover the low-rank and sparse components from their sum. Our model is motivated by the recently proposed linear transforms based…

机器学习 · 计算机科学 2019-07-22 Canyi Lu , Pan Zhou

We introduce Noise Recycling, a method that substantially enhances decoding performance of orthogonal channels subject to correlated noise without the need for joint encoding or decoding. The method can be used with any combination of…

信息论 · 计算机科学 2020-06-11 Alejandro Cohen , Amit Solomon , Ken R. Duffy , Muriel Médard
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