Results 41 to 50 of about 17,677 (287)

Nonconvex Nonseparable Sparse Nonnegative Matrix Factorization for Hyperspectral Unmixing

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Hyperspectral unmixing is an important step to learn the material categories and corresponding distributions in a scene. Over the past decade, nonnegative matrix factorization (NMF) has been utilized for this task, thanks to its good physical ...
Fengchao Xiong   +3 more
doaj   +1 more source

NMF-based stimulus decoding of simulated data.

open access: yes, 2016
(A) Patterns for spike train generation are plotted with the same conventions as in Fig 2A. Overlap of the patterns is increasing from left to right (overlap 0 to 3).
Jian K. Liu (371544)   +5 more
core   +1 more source

Underwater acoustic target signal enhancement algorithm optimized by feature preservation and noise update [PDF]

open access: yesZhihui kongzhi yu fangzhen
The enhancement effect of the classic Nonnegative Matrix Factorization (NMF) applied to underwater acoustic target signal is unsatisfactory for the feature overlap of underwater acoustic target signal and the variability of ocean underwater acoustic ...
XIAO Haixia, CUI Shuangyue, LI Dawei, SUN Mingming, LIU Xianzhong, YANG Zhenxin
doaj   +1 more source

Robust Semi-Supervised Non-Negative Matrix Factorization With Structured Normalization

open access: yesIEEE Access, 2019
Non-negative matrix factorization (NMF) approximates a non-negative data matrix with the product of two low-rank non-negative matrices by minimizing the cost of such approximation.
Liujing Wang   +4 more
doaj   +1 more source

Hessian Regularization Based Factorization Algorithm Combining Multi-view and Non-negative Matrix [PDF]

open access: yesJisuanji gongcheng, 2017
Non-negative matrix does not consider the manifold of data when represents multi-view data,which results in the ineffective express of the data internal expression.In this paper,Hessian regularized Non-negative Matrix Factorization(NMF) is proposed.By ...
WANG Chaofeng,SHI Jun,WU Jinjie,ZHU Jie
doaj   +1 more source

LS-NMF: A modified non-negative matrix factorization algorithm utilizing uncertainty estimates-2

open access: yes, 2011
Copyright information:Taken from "LS-NMF: A modified non-negative matrix factorization algorithm utilizing uncertainty estimates"BMC Bioinformatics 2006;7():175-175.Published online 28 Mar 2006PMCID:PMC1450309.Copyright © 2006 Wang et al; licensee BioMed
Andrew V Kossenkov (73124)   +2 more
core   +1 more source

Knowledge Discovery Through Topic Modeling on GoPartner User Reviews Using BERTopic, LDA, and NMF

open access: yesJournal of Applied Informatics and Computing
Transportation and food delivery services are one of the driving sectors of the digital economy in Indonesia. The e-Conomy SEA 2023 report shows that the transportation and food delivery services sector experienced a decrease in GMV in 2023 by 8% from ...
Metti Detricia Pratiwi, Ken Ditha Tania
doaj   +1 more source

Assessment of nonnegative matrix factorization algorithms for electroencephalography spectral analysis

open access: yesBioMedical Engineering OnLine, 2020
Background Nonnegative matrix factorization (NMF) has been successfully used for electroencephalography (EEG) spectral analysis. Since NMF was proposed in the 1990s, many adaptive algorithms have been developed.
Guoqiang Hu   +6 more
doaj   +1 more source

ENDMEMBER EXTRACTION OF HIGHLY MIXED DATA USING L1 SPARSITY-CONSTRAINED MULTILAYER NONNEGATIVE MATRIX FACTORIZATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Due to the limited spatial resolution of remote hyperspectral sensors, pixels are usually highly mixed in the hyperspectral images. Endmember extraction refers to the process identifying the pure endmember signatures from the mixture, which is an ...
H. Fang   +6 more
doaj   +1 more source

LS-NMF: A modified non-negative matrix factorization algorithm utilizing uncertainty estimates-3

open access: yes, 2011
Copyright information:Taken from "LS-NMF: A modified non-negative matrix factorization algorithm utilizing uncertainty estimates"BMC Bioinformatics 2006;7():175-175.Published online 28 Mar 2006PMCID:PMC1450309.Copyright © 2006 Wang et al; licensee BioMed
Andrew V Kossenkov (73124)   +2 more
core   +1 more source

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