Results 11 to 20 of about 2,091,920 (156)

N-matrix completion problem [PDF]

open access: yesLinear Algebra and its Applications, 2003
An \(n \times n\) matrix is called an \(N\)-matrix if all principal minors are negative. The authors prove that a combinatorially symmetric partial \(N\)-matrix has an \(N\)-matrix completion if the graph of its specified entries is a 1-chordal graph.
Araújo, C. Mendes   +2 more
openaire   +4 more sources

Matrix Completion Based on Low-Rank and Local Features Applied to Images Recovery and Recommendation Systems

open access: yesIEEE Access, 2022
Recent advances have shown that the challenging problem of matrix completion arises from real-world applications, such as image recovery, and recommendation systems.
Ying Zhang   +3 more
doaj   +1 more source

Regularization for matrix completion [PDF]

open access: yes2010 IEEE International Symposium on Information Theory, 2010
We consider the problem of reconstructing a low rank matrix from noisy observations of a subset of its entries. This task has applications in statistical learning, computer vision, and signal processing. In these contexts, "noise" generically refers to any contribution to the data that is not captured by the low-rank model.
Raghunandan H. Keshavan   +1 more
openaire   +3 more sources

Deep Matrix Factorization Based on Convolutional Neural Networks for Image Inpainting

open access: yesEntropy, 2022
In this work, we formulate the image in-painting as a matrix completion problem. Traditional matrix completion methods are generally based on linear models, assuming that the matrix is low rank.
Xiaoxuan Ma, Zhiwen Li, Hengyou Wang
doaj   +1 more source

A Novel Hierarchical Deep Matrix Completion Method

open access: yesIEEE Access, 2021
The matrix completion technique based on matrix factorization for recovering missing items is widely used in collaborative filtering, image restoration, and other applications.
Yaru Chen   +7 more
doaj   +1 more source

Causal Matrix Completion

open access: yesCoRR, 2021
Matrix completion is the study of recovering an underlying matrix from a sparse subset of noisy observations. Traditionally, it is assumed that the entries of the matrix are "missing completely at random" (MCAR), i.e., each entry is revealed at random, independent of everything else, with uniform probability.
Anish Agarwal   +3 more
openaire   +3 more sources

Self-Supervised Feature Specific Neural Matrix Completion

open access: yesIEEE Access, 2020
Unsupervised matrix completion algorithms mostly model the data generation process by using linear latent variable models. Recently proposed algorithms introduce non-linearity via multi-layer perceptrons (MLP), and self-supervision by setting separate ...
Mehmet Aktukmak   +2 more
doaj   +1 more source

A Nonconvex Method to Low-Rank Matrix Completion

open access: yesIEEE Access, 2022
In recent years, the problem of recovering a low-rank matrix from partial entries, known as low-rank matrix completion problem, has attracted much attention in many applications.
Haizhen He   +3 more
doaj   +1 more source

Robust Global Motion Estimation with Matrix Completion [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In this paper we address the problem of estimating the attitudes and positions of a set of cameras in an external coordinate system. Starting from a conventional global structure-from-motion pipeline, we present some substantial advances.
F. Arrigoni   +4 more
doaj   +1 more source

Deep Sparse Depth Completion Using Multi-Affinity Matrix

open access: yesIEEE Access, 2023
Image-guided depth completion aims to generate dense depth maps from sparse depth maps guided by their corresponding color (RGB) images. In this paper, we propose deep sparse depth completion using multi-affinity matrix.
Wei Zhao, Cheolkon Jung, Jaekwang Kim
doaj   +1 more source

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