Results 21 to 30 of about 53,454 (335)

Discriminant projective non-negative matrix factorization. [PDF]

open access: yesPLoS ONE, 2013
Projective non-negative matrix factorization (PNMF) projects high-dimensional non-negative examples X onto a lower-dimensional subspace spanned by a non-negative basis W and considers W(T) X as their coefficients, i.e., X≈WW(T) X.
Naiyang Guan   +4 more
doaj   +3 more sources

In-memory analog computing for non-negative matrix factorization [PDF]

open access: yesNature Communications
Non-negative matrix factorization (NMF) is a powerful technique for extracting latent structures from high-dimensional data, with applications spanning recommender systems, bioinformatics, and image processing.
Shiqing Wang   +6 more
doaj   +2 more sources

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   +2 more sources

Graph regularized non-negative matrix factorization with $$L_{2,1}$$ L 2 , 1 norm regularization terms for drug–target interactions prediction [PDF]

open access: yesBMC Bioinformatics, 2023
Background Identifying drug–target interactions (DTIs) plays a key role in drug development. Traditional wet experiments to identify DTIs are costly and time consuming. Effective computational methods to predict DTIs are useful to speed up the process of
Junjun Zhang, Minzhu Xie
doaj   +2 more sources

JGR-NMF: joint graph-regularized non-negative matrix factorization for spatial domain identification [PDF]

open access: yesPeerJ
The spatial transcriptomics technique provides an unprecedented perspective for analyzing the distribution patterns of cells within tissues and their functional tissue structures.
Juan Liang   +4 more
doaj   +3 more sources

Non-negative Matrix Factorization for Binary Data [PDF]

open access: yesProceedings of the 7th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, 2015
We propose the Logistic Non-negative Matrix Factorization for decomposition of binary data. Binary data are frequently generated in e.g. text analysis, sensory data, market basket data etc. A common method for analysing non-negative data is the Non-negative Matrix Factorization, though this is in theory not appropriate for binary data, and thus we ...
Jacob Søgaard Larsen   +1 more
openaire   +3 more sources

Bayesian multi-study non-negative matrix factorization for mutational signatures [PDF]

open access: yesGenome Biology
Mutational signatures are typically identified from tumor genome sequencing data using non-negative matrix factorization (NMF). However, existing NMF techniques only decompose a single dataset, limiting rigorous comparisons of signatures across ...
Isabella N. Grabski   +2 more
doaj   +2 more sources

Autoencoder-like Sparse Non-Negative Matrix Factorization with Structure Relationship Preservation [PDF]

open access: yesEntropy
Clustering algorithms based on non-negative matrix factorization (NMF) have garnered significant attention in data mining due to their strong interpretability and computational simplicity.
Ling Zhong, Haiyan Gao
doaj   +2 more sources

Non‐negative Matrix Factorization

open access: yes, 2023
International audience ; Solving a source separation problem when the data are explained by a linear mixing of non-negative sources with non-negative mixing coefficients reduces to performing a non-negative factorization (NMF) of the data matrix. This chapter addresses the concept of NMF, discusses some of its geometrical aspects, presents the model ...
Brie, David   +2 more
openaire   +2 more sources

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