Results 21 to 30 of about 23,208,688 (165)

Randomized Matrix Decompositions Using R

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   +1 more source

Investigating the feature extraction capabilities of non-negative matrix factorisation algorithms for black-and-white images [PDF]

open access: yesITM Web of Conferences
Nonnegative matrix factorisation (NMF) is a class of matrix factorisation methods to approximate a nonnegative matrix as a product of two nonnegative matrices.
Liew How Hui   +2 more
doaj   +1 more source

Diagonal Loading Beamforming Based on Aquila Optimizer

open access: yesIEEE Access, 2023
Traditional beamforming algorithms are only applicable to ideal environments. When the array antenna receives data under circumstances of small snapshots or large signal-to-noise ratio(SNR), noise eigenvalues of classic sample matrix inversion(SMI) and ...
Chao Liu, Jiaqi Zhen
doaj   +1 more source

A New Parallel Matrix Multiplication Method Adapted on Fibonacci Hypercube Structure [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2010
The objective of this study was to develop a new optimal parallel algorithm for matrix multiplication which could run on a Fibonacci Hypercube structure. Most of the popular algorithms for parallel matrix multiplication can not run on Fibonacci Hypercube
L Jokar
doaj  

M-Decomposed Least Squares and Recursive Least Squares Identification Algorithms for Large-Scale Systems

open access: yesIEEE Access, 2021
Two M-decomposed based identification algorithms are proposed for large-scale systems in this study. Since the least squares algorithms involve matrix inversion calculation, they can be inefficient for large-scale systems whose information matrices are ...
Yuejiang Ji, Lixin Lv
doaj   +1 more source

Non-negative Matrix Factorization for Dimensionality Reduction [PDF]

open access: yesITM Web of Conferences, 2022
—What matrix factorization methods do is reduce the dimensionality of the data without losing any important information. In this work, we present the Non-negative Matrix Factorization (NMF) method, focusing on its advantages concerning other methods of ...
Olaya Jbari, Otman Chakkor
doaj   +1 more source

A new Approach for the Modulus-Based Matrix Splitting Algorithms

open access: yesIEEE Access, 2019
We investigate the modulus-based matrix splitting iteration algorithms for solving the linear complementarity problems (LCPs) and propose a new model to solve it.
Wenpeng Wang   +3 more
doaj   +1 more source

Biased Deep Distance Factorization Algorithm for Top-N Recommendation [PDF]

open access: yesJisuanji kexue, 2021
Since traditional matrix factorization algorithms are mostly based on shallow linear models,it is difficult to learn latent factors of users and items at a deep level.When the dataset is sparse,it is inclined to overfitting.To deal with the problem,this ...
QIAN Meng-wei , GUO Yi
doaj   +1 more source

Sequential and Adaptive Learning Algorithms for M-Estimation

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
The M-estimate of a linear observation model has many important engineering applications such as identifying a linear system under non-Gaussian noise.
Guang Deng
doaj   +1 more source

A Multi-Dimensional Matrix Product—A Natural Tool for Parameterized Graph Algorithms [Elektronisk resurs]

open access: yes, 2022
We introduce the concept of a k-dimensional matrix product D of k matrices (Formula presented.) of sizes (Formula presented.) respectively, where (Formula presented.) is equal to (Formula presented.).
Lingas, Andrzej,   +2 more
core   +1 more source

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