Results 21 to 30 of about 7,807 (178)

Single channel speech music separation using nonnegative matrix factorization and spectral masks [PDF]

open access: yes, 2011
A single channel speech-music separation algorithm based on nonnegative matrix factorization (NMF) with spectral masks is proposed in this work. The proposed algorithm uses training data of speech and music signals with nonnegative matrix factorization ...
Erdogan, Hakan   +2 more
core   +1 more source

Hybrid Clustering of Single-Cell Gene Expression and Spatial Information via Integrated NMF and K-Means

open access: yesFrontiers in Genetics, 2021
Advances in single cell transcriptomics have allowed us to study the identity of single cells. This has led to the discovery of new cell types and high resolution tissue maps of them.
Sooyoun Oh, Haesun Park, Xiuwei Zhang
doaj   +1 more source

Joint Linear Regression and Nonnegative Matrix Factorization Based on Self-Organized Graph for Image Clustering and Classification

open access: yesIEEE Access, 2018
Nonnegative matrix factorization (NMF) technique has been developed successfully to represent the intuitively meaningful feature of data. A suitable representation can faithfully preserve the intrinsic structure of data.
Wenjie Zhu, Yunhui Yan
doaj   +1 more source

Discriminative and Graph Regularized Nonnegative Matrix Factorization with Kernel Method

open access: yesJisuanji kexue yu tansuo, 2020
Nonnegative matrix factorization (NMF) is a popular technique for dimension reduction,which has been extensively applied in image clustering and other fields.However,NMF is an unsupervised approach,which does not take the label information of the data ...
LI Xiangli, ZHANG Ying
doaj   +1 more source

Sparse Dual Graph-Regularized Deep Nonnegative Matrix Factorization for Image Clustering

open access: yesIEEE Access, 2021
Deep nonnegative matrix factorization (Deep NMF) as an emerging technique for image clustering has attracted more and more attention. This is because it can effectively reduce high-dimensional data and reveal the latent hierarchical information of the ...
Weiyu Guo
doaj   +1 more source

Nonnegative Matrix Factorization With Data-Guided Constraints For Hyperspectral Unmixing

open access: yesRemote Sensing, 2017
Hyperspectral unmixing aims to estimate a set of endmembers and corresponding abundances in pixels. Nonnegative matrix factorization (NMF) and its extensions with various constraints have been widely applied to hyperspectral unmixing.
Risheng Huang, Xiaorun Li, Liaoying Zhao
doaj   +1 more source

Group Sparsity and Graph Regularized Semi-Nonnegative Matrix Factorization with Discriminability for Data Representation

open access: yesEntropy, 2017
Semi-Nonnegative Matrix Factorization (Semi-NMF), as a variant of NMF, inherits the merit of parts-based representation of NMF and possesses the ability to process mixed sign data, which has attracted extensive attention. However, standard Semi-NMF still
Peng Luo, Jinye Peng
doaj   +1 more source

Nonnegative matrix factorization requires irrationality [PDF]

open access: yes, 2017
Nonnegative matrix factorization (NMF) is the problem of decomposing a given nonnegative n × m matrix M into a product of a nonnegative n × d matrix W and a nonnegative d × m matrix H. A longstanding open question, posed by Cohen and Rothblum in 1993, is
Chistikov, Dmitry   +4 more
core   +2 more sources

Robust Graph Regularized Nonnegative Matrix Factorization

open access: yesIEEE Access, 2022
Nonnegative Matrix Factorization (NMF) has become a popular technique for dimensionality reduction, and been widely used in machine learning, computer vision, and data mining. Existing unsupervised NMF methods impose the intrinsic geometric constraint on
Qi Huang   +3 more
doaj   +1 more source

Community Detection Algorithm Based on Nonnegative Matrix Factorization and Improved Density Peak Clustering

open access: yesIEEE Access, 2020
Community detection is a critical issue in the field of complex networks. Recently, the nonnegative matrix factorization (NMF) method has successfully uncovered the community structure in the complex networks.
Hong Lu   +3 more
doaj   +1 more source

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