Results 1 to 10 of about 138,910 (273)

Randomized Nonnegative Matrix Factorization [PDF]

open access: yesPattern Recognition Letters, 2018
Nonnegative matrix factorization (NMF) is a powerful tool for data mining. However, the emergence of `big data' has severely challenged our ability to compute this fundamental decomposition using deterministic algorithms. This paper presents a randomized
Erichson, N. Benjamin   +3 more
core   +2 more sources

Generalized Separable Nonnegative Matrix Factorization [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2019
Nonnegative matrix factorization (NMF) is a linear dimensionality technique for nonnegative data with applications such as image analysis, text mining, audio source separation and hyperspectral unmixing.
Gillis, Nicolas, Pan, Junjun
core   +3 more sources

Sparse Deep Nonnegative Matrix Factorization [PDF]

open access: yesBig Data Mining and Analytics, 2020
Nonnegative Matrix Factorization (NMF) is a powerful technique to perform dimension reduction and pattern recognition through single-layer data representation learning. However, deep learning networks, with their carefully designed hierarchical structure,
Zhenxing Guo, Shihua Zhang
doaj   +3 more sources

Computing a Nonnegative Matrix Factorization -- Provably [PDF]

open access: yesSIAM Journal on Computing, 2011
In the Nonnegative Matrix Factorization (NMF) problem we are given an $n \times m$ nonnegative matrix $M$ and an integer $r > 0$. Our goal is to express $M$ as $A W$ where $A$ and $W$ are nonnegative matrices of size $n \times r$ and $r \times m ...
Arora, Sanjeev   +3 more
core   +4 more sources

Predicting epileptic seizures using nonnegative matrix factorization. [PDF]

open access: yesPLoS ONE, 2020
This paper presents a procedure for the patient-specific prediction of epileptic seizures. To this end, a combination of nonnegative matrix factorization (NMF) and smooth basis functions with robust regression is applied to power spectra of intracranial ...
Olivera Stojanović   +2 more
doaj   +2 more sources

Monotonicity of the number of positive entries in nonnegative matrix powers [PDF]

open access: yesJournal of Inequalities and Applications, 2018
Let A be a nonnegative matrix of order n and f(A) $f(A)$ denote the number of positive entries in A. We prove that if f(A)≤3 $f(A)\leq3$ or f(A)≥n2−2n+2 $f(A)\geq n^{2}-2n+2$, then the sequence {f(Ak)}k=1∞ $\{f(A^{k})\}_{k=1}^{\infty}$ is monotonic for ...
Qimiao Xie
doaj   +2 more sources

Descent methods for Nonnegative Matrix Factorization [PDF]

open access: yes, 2008
In this paper, we present several descent methods that can be applied to nonnegative matrix factorization and we analyze a recently developped fast block coordinate method called Rank-one Residue Iteration (RRI).
Blondel, Vincent D.   +2 more
core   +5 more sources

Image Clustering Algorithm Based on Hypergraph Regularized Nonnegative Tucker Decomposition [PDF]

open access: yesJisuanji gongcheng, 2022
The internal geometry structure of high-dimensional data is ignored when nonnegative tensor decomposition is applied to image clustering.To solve this problem, we propose a Hypergraph regularized Nonnegative Tucker Decomposition(HGNTD) model by adding a ...
CHEN Luyao, LIU Qilong, XU Yunxia, CHEN Zhen
doaj   +1 more source

Coseparable Nonnegative Matrix Factorization

open access: yesSIAM Journal on Matrix Analysis and Applications, 2023
Nonnegative matrix factorization (NMF) is a popular model in the field of pattern recognition. It aims to find a low rank approximation for nonnegative data M by a product of two nonnegative matrices W and H. In general, NMF is NP-hard to solve while it can be solved efficiently under separability assumption, which requires the columns of factor matrix
Junjun Pan, Michael K. Ng
openaire   +3 more sources

Nonnegative low rank matrix approximation for nonnegative matrices [PDF]

open access: yesApplied Mathematics Letters, 2020
25 pages 13 ...
Guang-Jing Song, Michael K. Ng
openaire   +2 more sources

Home - About - Disclaimer - Privacy