Results 31 to 40 of about 55,457 (295)
Investigating the feature extraction capabilities of non-negative matrix factorisation algorithms for black-and-white images [PDF]
ITM Web of ConferencesNonnegative matrix factorisation (NMF) is a class of matrix factorisation methods to approximate a nonnegative matrix as a product of two nonnegative matrices.
Liew How Hui +2 more
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Applying supervised classifiers based on non-negative matrix factorization to musical instrument classification [PDF]
, 2006 In this paper, a new approach for automatic audio classification using non-negative matrix factorization (NMF) is presented. Training is performed onto each audio class individually, whilst during the test phase each test recording is projected onto the ...
Benetos, E., Kotropoulos, C., Kotti, M.
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Procedings of the British Machine Vision Conference 2011, 2011 In this paper, we propose a maximum-margin framework for classification using Non-negative Matrix Factorization. In contrast to previous approaches where the classification and matrix factorization are separated, we incorporate the maximum margin constraints within the NMF formuation i.e.
Vijay B.G. Kumar +2 more
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A robust semi-supervised NMF model for single cell RNA-seq data
PeerJ, 2020 Background Single-cell RNA-sequencing (scRNA-seq) technology is a powerful tool to study organism from a single cell perspective and explore the heterogeneity between cells. Clustering is a fundamental step in scRNA-seq data analysis and it is the key to
Peng Wu +5 more
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LS-NMF: A modified non-negative matrix factorization algorithm utilizing uncertainty estimates
BMC Bioinformatics, 2006 Background Non-negative matrix factorisation (NMF), a machine learning algorithm, has been applied to the analysis of microarray data. A key feature of NMF is the ability to identify patterns that together explain the data as a linear combination of ...
Kossenkov Andrew V +2 more
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Platelet-Related Molecular Subtype to Predict Prognosis in Hepatocellular Carcinoma
Journal of Hepatocellular Carcinoma, 2022 Genhao Zhang Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of ChinaCorrespondence: Genhao Zhang, Email wangshuya617@bjmu.edu.cnPurpose: Complex crosstalk between tumor cells and ...
Zhang G
doaj
Applied Sciences, 2020 In this paper, methods to estimate the number of basis vectors of the nonnegative matrix factorization (NMF) of automatic music transcription (AMT) systems are proposed.
Seokjin Lee
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IEEE Access, 2021 We analyzed muscle excitation estimation systematically by Non-negative matrix factorization (NMF) from surface electromyograms (EMG) during dynamic contractions of biceps brachii (BB) muscles.
Martin Savc, Ales Holobar
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Multichannel high resolution NMF for modelling convolutive mixtures of non-stationary signals in the time-frequency domain [PDF]
, 2013 Several probabilistic models involving latent components have been proposed for modeling time-frequency (TF) representations of audio signals such as spectrograms, notably in the nonnegative matrix factorization (NMF) literature.
Badeau, Roland, Plumbley, Mark
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Clays and Clay Minerals, 1993 AbstractBulk and size-fractionated kaolinites from seven localities in Australia as well as the Clay Minerals Society Source Clays Georgia KGa-1 and KGa-2 have been studied by X-ray diffraction (XRD), laser scattering, and electron microscopy in order to understand the variation of particle characteristics across a range of environments and to ...
Uwins, P.J.R. +3 more
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