Results 11 to 20 of about 870,005 (280)

Optimal CUR Matrix Decompositions [PDF]

open access: yesProceedings of the forty-sixth annual ACM symposium on Theory of computing, 2014
The CUR decomposition of an $m \times n$ matrix $A$ finds an $m \times c$ matrix $C$ with a subset of $c < n$ columns of $A,$ together with an $r \times n$ matrix $R$ with a subset of $r < m$ rows of $A,$ as well as a $c \times r$ low-rank matrix $U ...
Boutsidis C.   +4 more
core   +3 more sources

Singular-Value-Decomposition-Based Matrix Surgery

open access: yesEntropy
This paper is motivated by the need to stabilise the impact of deep learning (DL) training for medical image analysis on the conditioning of convolution filters in relation to model overfitting and robustness.
Jehan Ghafuri, Sabah Jassim
doaj   +4 more sources

Randomized Matrix Decompositions Using R [PDF]

open access: yesJournal of Statistical Software, 2019
Matrix decompositions are fundamental tools in the area of applied mathematics, statistical computing, and machine learning. In particular, low-rank matrix decompositions are vital, and widely used for data analysis, dimensionality reduction, and data ...
N. Benjamin Erichson   +3 more
doaj   +4 more sources

Mueller matrix differential decomposition [PDF]

open access: yesOptics Letters, 2011
We present a Mueller matrix decomposition based on the differential formulation of the Mueller calculus. The differential Mueller matrix is obtained from the macroscopic matrix through an eigenanalysis. It is subsequently resolved into the complete set of 16 differential matrices that correspond to the basic types of optical behavior for depolarizing ...
Ortega-Quijano, Noé   +1 more
openaire   +3 more sources

Probability Matrix Decomposition Models [PDF]

open access: yesPsychometrika, 1996
In this paper, we consider a class of models for two-way matrices with binary entries of 0 and 1. First, we consider Boolean matrix decomposition, conceptualize it as a latent response model (LRM) and, by making use of this conceptualization, generalize it to a larger class of matrix decomposition models.
Maris, E., DeBoeck, P., Mechelen, I. van
openaire   +1 more source

Two New Matrix Classes Related to the CMP Inverse: CMP and Co-CMP Matrices

open access: yesMathematics, 2023
This paper focuses on two new matrix classes related to the CMP inverse of a square matrix, called the CMP and co-CMP matrices. Some of their characterizations are identified based on the core-EP decomposition and subspace operations.
Yinlan Chen, Jiale Gao, Kezheng Zuo
doaj   +1 more source

A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

open access: yesIEEE Access, 2022
In this paper, in order to improve the reliability of Multi-User Multiple-Input Multiple-Output Visible Light Communication (MU-MIMO-VLC) system, we propose a precoding scheme that based on Singular Value Decomposition (SVD) and Geometric Mean ...
Wenduo Qiu, Yan Feng, You Zhang
doaj   +1 more source

Rank-Sparsity Incoherence for Matrix Decomposition [PDF]

open access: yes, 2009
Suppose we are given a matrix that is formed by adding an unknown sparse matrix to an unknown low-rank matrix. Our goal is to decompose the given matrix into its sparse and low-rank components.
Chandrasekaran, Venkat   +3 more
core   +7 more sources

Mean-field density matrix decompositions [PDF]

open access: yesThe Journal of Chemical Physics, 2020
We introduce new and robust decompositions of mean-field Hartree–Fock and Kohn–Sham density functional theory relying on the use of localized molecular orbitals and physically sound charge population protocols. The new lossless property decompositions, which allow for partitioning one-electron reduced density matrices into either bond-wise or atomic ...
openaire   +3 more sources

Constructive quantum scaling of unitary matrices [PDF]

open access: yes, 2016
In this work we present a method of decomposition of arbitrary unitary matrix $U\in\mathbf U(2^k)$ into a product of single-qubit negator and controlled-$\sqrt{\mbox{NOT}}$ gates.
Glos, Adam, Sadowski, Przemysław
core   +2 more sources

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