Results 91 to 100 of about 1,628,183 (185)

Nonnegative Matrix Factorization of time frequency representation of vibration signal for local damage detection – comparison of algorithms

E3S Web of Conferences, 2018
Local damage detection in rotating machine elements is very important problem widely researched in the literature. One of the most common approaches is the vibration signal analysis.
Wodecki Jacek
doaj   +1 more source

Novel methods for spatial risks analysis and quantitative source apportionment of heavy metals pollution in agricultural soils

Journal of Agriculture and Food Research
Precision pollution control relies on accurate spatial interpolation and quantitative source apportionment. This study addresses key methodological gaps by developing two novel tools: a non-negative constrained biharmonic spline interpolation algorithm ...
Qinqin Yu, Jinying Li, Jiahao Li, Tong Liu, Fangyuan Chen, Yao Liu, Haoming Wang, Shaoyang Tao, Min Zhou, Haobo Hou   +9 more
doaj   +1 more source

Quantized Nonnegative Matrix Factorization [PDF]

, 2014
Even though Nonnegative Matrix Factorization (NMF) in its original form performs rank reduction and signal compaction implicitly, it does not explicitly consider storage or transmission constraints.
de Fréin, Ruairí, de Fréin, Ruairí,, Ruairi de Frein   +2 more
core   +1 more source

Robust Non-negative Matrix Factorization Clustering Algorithm with Dual-Graph Regularization [PDF]

Jisuanji kexue yu tansuo
Non-negative matrix factorization (NMF), as an effective approach for data representation and dimensionality reduction, has been extensively utilized in domains such as image processing and text clustering.
GAO Haiyan, LIU Mengshu, ZHOU Gaigai, ZHONG Ling
doaj   +1 more source

A Hybrid Algorithm for Estimating Origin-Destination Flows

IEEE Access, 2018
With the development of intelligent transportation systems, the estimation of traffic flow in urban areas has attracted a great attention of researchers.
Xianghua Li, Jurgen Kurths, Chao Gao, Junwei Zhang, Zhen Wang, Zili Zhang   +5 more
doaj   +1 more source

Multichannel high resolution NMF for modelling convolutive mixtures of non-stationary signals in the time-frequency domain [PDF]

, 2013
Badeau, Roland, Plumbley, Mark
core   +4 more sources

Note Onset Detection via Nonnegative Factorization of Magnitude Spectrum

EURASIP Journal on Advances in Signal Processing, 2008
A novel approach for onset detection of musical notes from audio signals is presented. In contrast to most commonly used conventional approaches, the proposed method features new detection functions constructed from the linear temporal bases that are ...
Saeid Sanei, Jonathon A. Chambers, Yuhui Luo, Wenwu Wang   +3 more
doaj   +1 more source

On the geometric interpretation of the nonnegative rank [PDF]

The nonnegative rank of a nonnegative matrix is the minimum number of nonnegative rank-one factors needed to reconstruct it exactly. The problem of determining this rank and computing the corresponding nonnegative factors is difficult; however it has ...
GILLIS, Nicolas, GLINEUR, François
core  

Robust Structure Preserving Nonnegative Matrix Factorization for Dimensionality Reduction

, 2016
As a linear dimensionality reduction method, nonnegative matrix factorization (NMF) has been widely used in many fields, such as machine learning and data mining.
Li BF(李冰锋), Han Z(韩志), Tang YD(唐延东)   +2 more
core  

Nonnegative Matrix Factorization Problem

, 2020
The Nonnegative Matrix Factorization (NMF) problem has been widely used to analyze high-dimensional nonnegative data and extract important features. In this paper, I review major concepts regarding NMF, some NMF algorithms and related problems including ...
An, Junda
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