Results 1 to 10 of about 2,052,954 (190)

Robust self supervised symmetric nonnegative matrix factorization to the graph clustering [PDF]

open access: yesScientific Reports
Graph clustering is a fundamental task in network analysis, aimed at uncovering meaningful groups of nodes based on structural and attribute-based similarities.
Yi Ru, Michael Gruninger, YangLiu Dou
doaj   +4 more sources

MHSNMF: multi-view hessian regularization based symmetric nonnegative matrix factorization for microbiome data analysis [PDF]

open access: yesBMC Bioinformatics, 2020
Background With the rapid development of high-throughput technique, multiple heterogeneous omics data have been accumulated vastly (e.g., genomics, proteomics and metabolomics data).
Yuanyuan Ma, Junmin Zhao, Yingjun Ma
doaj   +2 more sources

Block Sparse Symmetric Nonnegative Matrix Factorization Based on Constrained Graph Regularization [PDF]

open access: yesJisuanji kexue, 2023
The existing algorithms based on symmetric nonnegative matrix factorization(SymNMF) are mostly rely on initial data to construct affinity matrices,and neglect the limited pairwise constraints,so these methods are unable to effectively distinguish similar
LIU Wei, DENG Xiuqin, LIU Dongdong, LIU Yulan
doaj   +2 more sources

An improved multi-view spectral clustering based on tissue-like P systems [PDF]

open access: yesScientific Reports, 2022
Multi-view spectral clustering is one of the multi-view clustering methods widely studied by numerous scholars. The first step of multi-view spectral clustering is to construct the similarity matrix of each view.
Huijian Chen, Xiyu Liu
doaj   +2 more sources

Nonnegative matrix factorization with Wasserstein metric-based regularization for enhanced text embedding. [PDF]

open access: yesPLoS ONE
Text embedding plays a crucial role in natural language processing (NLP). Among various approaches, nonnegative matrix factorization (NMF) is an effective method for this purpose.
Mingming Li   +3 more
doaj   +2 more sources

Similarity Learning-Induced Symmetric Nonnegative Matrix Factorization for Image Clustering [PDF]

open access: yesIEEE Access, 2019
As a typical variation of nonnegative matrix factorization (NMF), symmetric NMF (SNMF) is capable of exploiting information of the cluster embedded in the matrix of similarity.
Wei Yan   +3 more
doaj   +3 more sources

Microbiome Data Analysis by Symmetric Non-negative Matrix Factorization With Local and Global Regularization

open access: yesFrontiers in Molecular Biosciences, 2021
A network is an efficient tool to organize complicated data. The Laplacian graph has attracted more and more attention for its good properties and has been applied to many tasks including clustering, feature selection, and so on.
Junmin Zhao, Yuanyuan Ma, Lifang Liu
doaj   +1 more source

Symmetric Nonnegative Matrix Factorization Based on Box-Constrained Half-Quadratic Optimization

open access: yesIEEE Access, 2020
Nonnegative Matrix Factorization (NMF) based on half-quadratic (HQ) functions was proven effective and robust when dealing with data contaminated by continuous occlusion according to the half-quadratic optimization theory.
Bo-Wei Chen
doaj   +1 more source

Robust Community Detection in Graphs

open access: yesIEEE Access, 2021
Community detection in network-type data provides a powerful tool in analyzing and understanding real-world systems. In fact, community detection approaches aim to reduce the network’s dimensionality and partition it into a set of disjoint ...
Esraa M. Al-Sharoa   +2 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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