Results 81 to 90 of about 2,091,920 (156)

Matrix Completion With Covariate Information

open access: yesJournal of the American Statistical Association, 2018
This paper investigates the problem of matrix completion from corrupted data, when additional covariates are available. Despite being seldomly considered in the matrix completion literature, these covariates often provide valuable information for completing the unobserved entries of the high-dimensional target matrix A0. Given a covariate matrix X with
Xiaojun Mao   +2 more
openaire   +1 more source

Fast Exact Matrix Completion: A Unified Optimization Framework for Matrix Completion

open access: yes, 2019
We formulate the problem of matrix completion with and without side information as a non-convex optimization problem. We design fastImpute based on non-convex gradient descent and show it converges to a global minimum that is guaranteed to recover closely the underlying matrix while it scales to matrices of sizes beyond $10^5 \times 10^5$.
Bertsimas, D, Li, ML
openaire   +4 more sources

The doubly negative matrix completion problem [PDF]

open access: yes, 2005
An $n\times n$ matrix over the field of real numbers is a doubly negative matrix if it is symmetric, negative definite and entry-wise negative. In this paper, we are interested in the doubly negative matrix completion problem, that is when does a ...
Araújo, C. Mendes   +2 more
core   +1 more source

RW-MC:self-adaptive random walk based matrix completion algorithm

open access: yesTongxin xuebao, 2017
Concerning the continually perceiving performance of virtual access points (VAP) was urgent in software-defined wireless network (SDWN),with the features of VAPs’ measurement data (VMD),a self-adaptive matrix completion algorithm based on random walk was
Xin-heng WANG   +4 more
doaj   +2 more sources

Survey of Matrix Completion Algorithms

open access: yesCoRR, 2022
Matrix completion problem has been investigated under many different conditions since Netflix announced the Netflix Prize problem. Many research work has been done in the field once it has been discovered that many real life dataset could be estimated with a low-rank matrix.
openaire   +2 more sources

The N-matrix completion problem under digraphs assumptions [PDF]

open access: yes, 2004
An $n \times n$ matrix is called an $N$--matrix if all principal minors are negative. In this paper, we are interested in the partial $N$--matrix completion problem, when the partial $N$--matrix is non-combinatorially symmetric. In general, this type
Araújo, C. Mendes   +2 more
core   +1 more source

Doa estimation of array radar via compressive sampling and matrix completion

open access: yes, 2015
With the requirement of high-precision and high-resolution, the huge data greatly increases data transmission and storage load. Compressive sampling and Matrix completion have received considerable attention recently, and has been applied successfully in
Bi X(毕欣)   +2 more
core  

The nonnegative Q−matrix completion problem [PDF]

open access: yes, 2017
In this paper, the nonnegative $Q$-matrix completion problem is studied. A real $n\times n$ matrix is a $Q$-matrix if for $k\in \{1,\ldots, n\}$, the sum of all $k \times k$ principal minors is positive.
Sinha, Kalyan, Sarma, Bhaba Kumar
core  

iMTF-GRN: Integrative Matrix Tri-Factorization for Inference of Gene Regulatory Networks

open access: yesIEEE Access, 2019
Gene Regulatory Network (GRN) inference using computational approaches has been a highly pursued problem in bioinformatics. Various approaches have been developed to infer GRNs from gene expression data including statistical, machine learning and ...
Nisar Wani, Khalid Raza
doaj   +1 more source

A Combined Low-Rank Matrix Completion and CDBN-LSTM Based Classification Model for Lower Limb Motion Function

open access: yesIEEE Access, 2020
Assessment of lower limb motion function is crucial for clinicians to treat patients effectively. However, diagnosis accuracy is still affected by clinical experience.
Yan Zhang   +4 more
doaj   +1 more source

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