Results 21 to 30 of about 2,137 (155)

Adaptive Kernel Graph Nonnegative Matrix Factorization

open access: yesInformation, 2023
Nonnegative matrix factorization (NMF) is an efficient method for feature learning in the field of machine learning and data mining. To investigate the nonlinear characteristics of datasets, kernel-method-based NMF (KNMF) and its graph-regularized ...
Rui-Yu Li, Yu Guo, Bin Zhang
doaj   +1 more source

Enhancing Hyperspectral Unmixing With Two-Stage Multiplicative Update Nonnegative Matrix Factorization

open access: yesIEEE Access, 2019
Nonnegative matrix factorization (NMF) is a powerful tool for hyperspectral unmixing (HU). This method factorizes a hyperspectral cube into constituent endmembers and their fractional abundances.
Li Sun   +3 more
doaj   +1 more source

Deep Nonnegative Dictionary Factorization for Hyperspectral Unmixing

open access: yesRemote Sensing, 2020
As a powerful blind source separation tool, Nonnegative Matrix Factorization (NMF) with effective regularizations has shown significant superiority in spectral unmixing of hyperspectral remote sensing images (HSIs) owing to its good physical ...
Wenhong Wang, Hongfu Liu
doaj   +1 more source

Nonnegative Matrix Factorization with Joint Regularization of Manifold Learning and Pairwise Constraints

open access: yesJisuanji kexue yu tansuo, 2020
In order to handle semi-supervised clustering scenarios where only part of the pairwise constraint information is available in the target dataset, on the basis of nonnegative matrix factorization (NMF) architecture, this paper proposes a nonnegative ...
CAO Jiawei, QIAN Pengjiang
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

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

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

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