Results 71 to 80 of about 82,948 (222)

A Review on Initialization Methods for Nonnegative Matrix Factorization: Towards Omics Data Experiments

open access: yesMathematics, 2021
Nonnegative Matrix Factorization (NMF) has acquired a relevant role in the panorama of knowledge extraction, thanks to the peculiarity that non-negativity applies to both bases and weights, which allows meaningful interpretations and is consistent with ...
Flavia Esposito
semanticscholar   +1 more source

Probabilistic Non-Negative Matrix Factorization with Binary Components

open access: yesMathematics, 2021
Non-negative matrix factorization is used to find a basic matrix and a weight matrix to approximate the non-negative matrix. It has proven to be a powerful low-rank decomposition technique for non-negative multivariate data.
Xindi Ma   +4 more
doaj   +1 more source

Fairer non-negative matrix factorization

open access: yesFrontiers in Big Data
There has been a recent critical need to study fairness and bias in machine learning (ML) algorithms. Since there is clearly no one-size-fits-all solution to fairness, ML methods should be developed alongside bias mitigation strategies that are practical
Lara Kassab   +5 more
doaj   +1 more source

Boosting Nonnegative Matrix Factorization Based Community Detection With Graph Attention Auto-Encoder

open access: yesIEEE Transactions on Big Data, 2021
Community detection is of great help to understand the structures and functions of complex networks. It has become one of popular research topics in the field of complex networks analysis.
Chaobo He   +5 more
semanticscholar   +1 more source

Partial Identifiability for Nonnegative Matrix Factorization

open access: yesSIAM Journal on Matrix Analysis and Applications, 2023
27 pages, 8 figures, 7 examples. This third version makes minor modifications. Paper accepted in SIAM J.
Nicolas Gillis, Róbert Rajkó
openaire   +2 more sources

Enhancing Hyperspectral Unmixing With Two-Stage Multiplicative Update Nonnegative Matrix Factorization

open access: yesIEEE Access, 2019
Nonnegative matrix factorization (NMF) is a powerful tool for hyperspectral unmixing (HU). This method factorizes a hyperspectral cube into constituent endmembers and their fractional abundances.
Li Sun   +3 more
doaj   +1 more source

Latent Multi-View Semi-Nonnegative Matrix Factorization with Block Diagonal Constraint

open access: yesAxioms, 2022
Multi-view clustering algorithms based on matrix factorization have gained enormous development in recent years. Although these algorithms have gained impressive results, they typically neglect the spatial structures that the latent data representation ...
Lin Yuan   +3 more
doaj   +1 more source

Dual-Graph-Regularization Constrained Nonnegative Matrix Factorization with Label Discrimination for Data Clustering

open access: yesMathematics, 2023
NONNEGATIVE matrix factorization (NMF) is an effective technique for dimensionality reduction of high-dimensional data for tasks such as machine learning and data visualization.
Jie Li, Yaotang Li, Chaoqian Li
doaj   +1 more source

A new Approach for Building Recommender System Using Non-Negative Matrix Factorization Method

open access: yesپژوهش‌های ریاضی, 2021
Nonnegative Matrix Factorization is a new approach to reduce data dimensions. In this method, by applying the nonnegativity of the matrix data, the matrix is ​​decomposed into components that are more interrelated and divide the data into sections where ...
nushin shahrokhi, somayeh arabi narie
doaj  

Heuristics for exact nonnegative matrix factorization [PDF]

open access: yesJournal of Global Optimization, 2015
32 pages, 2 figures, 16 ...
Arnaud Vandaele   +3 more
openaire   +5 more sources

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