Results 1 to 10 of about 143,398 (311)

Optimal CUR Matrix Decompositions [PDF]

open access: greenProceedings 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 $U$ such that the matrix $C U R$ approximates the matrix $A,$ that is, $ || A - CUR ||_F^2 \le (1+ε) |
Christos Boutsidis, David P. Woodruff
openalex   +4 more sources

Empirical Bayes Linked Matrix Decomposition. [PDF]

open access: yesMach Learn
Data for several applications in diverse fields can be represented as multiple matrices that are linked across rows or columns. This is particularly common in molecular biomedical research, in which multiple molecular "omics" technologies may capture different feature sets (e.g., corresponding to rows in a matrix) and/or different sample populations ...
Lock EF.
europepmc   +4 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

Kronecker product decomposition of Boolean matrix with application to topological structure analysis of Boolean networks

open access: yesMathematical Modelling and Control, 2023
This paper investigated the Kronecker product (KP) decomposition of the Boolean matrix and analyzed the topological structure of Kronecker product Boolean networks (KPBNs).
Xiaomeng Wei, Haitao Li, Guodong Zhao
doaj   +1 more source

Singular Value Decomposition of Spatial Matrices

open access: yesСовременные информационные технологии и IT-образование, 2022
Singular value decomposition is a basic building block which is used in solution of many different problems. In cases when dimensionality of a problem exceeds two, a generalization of a singular value decomposition – tensor decompositions – are used ...
Pavel Iljin, Tatiana Samoilova
doaj   +1 more source

Energy-Based Adaptive CUR Matrix Decomposition

open access: yesIEEE Access, 2023
CUR decompositions are interpretable data analysis tools that express a data matrix in terms of a small number of actual columns and/or actual rows of the data matrix.
Liwen Xu, Xuejiao Zhao, Yongxia Zhang
doaj   +1 more source

Prime decomposition of quadratic matrix polynomials

open access: yesAIMS Mathematics, 2021
We study the prime decomposition of a quadratic monic matrix polynomial. From the prime decomposition of a quadratic matrix polynomial, we obtain a formula of the general solution to the corresponding second-order differential equation.
Yunbo Tian, Sheng Chen
doaj   +1 more source

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