Results 21 to 30 of about 13,782,934 (217)

Detecting time-evolving phenotypic components of adverse reactions against BNT162b2 SARS-CoV-2 vaccine via non-negative tensor factorization

open access: yesiScience, 2022
Summary: Symptoms of adverse reactions to vaccines evolve over time, but traditional studies have focused only on the frequency and intensity of symptoms.
Kei Ikeda   +16 more
doaj   +1 more source

Alzheimer’s Disease Recognition Applying Non-Negative Matrix Factorization Characteristics from Brain Magnetic Resonance Images (MRI) [PDF]

open access: yesE3S Web of Conferences, 2023
To more accurately depict Alzheimer’s disease (AD) and projecting clinical outcomes while taking into account advancements in clinical imaging and substantial learning, several experts are gradually using ConvNet (CNNs) to remove deep intensity features ...
Reddy G. Vijendar   +4 more
doaj   +1 more source

Image Clustering Algorithm Based on Hypergraph Regularized Nonnegative Tucker Decomposition [PDF]

open access: yesJisuanji gongcheng, 2022
The internal geometry structure of high-dimensional data is ignored when nonnegative tensor decomposition is applied to image clustering.To solve this problem, we propose a Hypergraph regularized Nonnegative Tucker Decomposition(HGNTD) model by adding a ...
CHEN Luyao, LIU Qilong, XU Yunxia, CHEN Zhen
doaj   +1 more source

Hyperspectral and Multispectral Image Fusion Using Coupled Non-Negative Tucker Tensor Decomposition

open access: yesRemote Sensing, 2021
Fusing a low spatial resolution hyperspectral image (HSI) with a high spatial resolution multispectral image (MSI), aiming to produce a super-resolution hyperspectral image, has recently attracted increasing research interest.
Marzieh Zare   +3 more
doaj   +1 more source

Sparse Constrained Low Tensor Rank Representation Framework for Hyperspectral Unmixing

open access: yesRemote Sensing, 2021
Recently, non-negative tensor factorization (NTF) as a very powerful tool has attracted the attention of researchers. It is used in the unmixing of hyperspectral images (HSI) due to its excellent expression ability without any information loss when ...
Le Dong, Yuan Yuan
doaj   +1 more source

Research on Dynamic Topic Recognition Based on the Change of Word Co-Occurrence Frequency

open access: yesZhishi guanli luntan, 2022
[Purpose/Significance] The research on topic recognition is very important to clarify the knowledge structure and research hotspots in the field. Dynamic identification of domain topics can help researchers understand and master the development trend and
Xi Chongjun, Liu Wenbin, Ding Kai
doaj   +1 more source

Non-negative Tensor Factorization for Speech Enhancement [PDF]

open access: yesProceedings of the 2016 International Conference on Artificial Intelligence: Technologies and Applications, 2016
This paper proposes an algorithm for speech enhancement by non-negative tensor factorisation. We group adjacent time-frequency matrices in the spectrograms together to form a tensor as a basic input in our algorithm. The non-negative tensor factorisation is followed to perform sound source separation between speeches and noises.
Mengnan Shi, Weiqiang Zhang, Liang He
openaire   +1 more source

Non-negative mixtures [PDF]

open access: yes, 2010
This is the author's accepted pre-print of the article, first published as M. D. Plumbley, A. Cichocki and R. Bro. Non-negative mixtures. In P. Comon and C. Jutten (Ed), Handbook of Blind Source Separation: Independent Component Analysis and Applications.
M. D. Plumbley   +9 more
core   +2 more sources

Simultaneous non-negative matrix factorization for multiple large scale gene expression datasets in toxiciology [PDF]

open access: yes, 2012
Non-negative matrix factorization is a useful tool for reducing the dimension of large datasets. This work considers simultaneous non-negative matrix factorization of multiple sources of data.
Mudaliar, Manikhandan A. V.   +7 more
core   +2 more sources

Weighted Group Sparsity-Constrained Tensor Factorization for Hyperspectral Unmixing

open access: yesRemote Sensing, 2022
Recently, unmixing methods based on nonnegative tensor factorization have played an important role in the decomposition of hyperspectral mixed pixels.
Xinxi Feng, Le Han, Le Dong
doaj   +1 more source

Home - About - Disclaimer - Privacy