Results 31 to 40 of about 36,142 (194)

A new S-type upper bound for the largest singular value of nonnegative rectangular tensors

open access: yesJournal of Inequalities and Applications, 2017
By breaking N = { 1 , 2 , … , n } $N=\{1,2,\ldots,n\}$ into disjoint subsets S and its complement, a new S-type upper bound for the largest singular value of nonnegative rectangular tensors is given and proved to be better than some existing ones ...
Jianxing Zhao, Caili Sang
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

Nonnegative Structured Kruskal Tensor Regression

open access: yes2023 IEEE 9th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2023
Peer ...
Ollila Esa, Vorobyov Sergiy, Wang Xinjue
openaire   +2 more sources

Nonnegative Tensor Completion via Low-Rank Tucker Decomposition: Model and Algorithm

open access: yesIEEE Access, 2019
We consider the problem of low-rank tensor decomposition of incomplete tensors that has applications in many data analysis problems, such as recommender systems, signal processing, machine learning, and image inpainting.
Bilian Chen   +4 more
doaj   +1 more source

Non-negative tensor factorization workflow for time series biomedical data

open access: yesSTAR Protocols, 2023
Summary: Non-negative tensor factorization (NTF) enables the extraction of a small number of latent components from high-dimensional biomedical data. However, NTF requires many steps, which is a hurdle to implementation.
Koki Tsuyuzaki   +4 more
doaj   +1 more source

Auditory Sparse Representation for Robust Speaker Recognition Based on Tensor Structure

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2008
This paper investigates the problem of speaker recognition in noisy conditions. A new approach called nonnegative tensor principal component analysis (NTPCA) with sparse constraint is proposed for speech feature extraction.
Liqing Zhang, Qiang Wu
doaj   +2 more sources

Application of Nonnegative Tensor Factorization for neutron-gamma discrimination of Monte Carlo simulated fission chamber’s output signals

open access: yesResults in Physics, 2017
For efficient exploitation of research reactors, it is important to discern neutron flux distribution inside the reactor with the best possible precision. For this reason, fission and ionization chambers are used to measure the neutron field.
Mounia Laassiri   +2 more
doaj   +1 more source

A sharp upper bound on the spectral radius of a nonnegative k-uniform tensor and its applications to (directed) hypergraphs

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we obtain a sharp upper bound on the spectral radius of a nonnegative k-uniform tensor and characterize when this bound is achieved. Furthermore, this result deduces the main result in [X. Duan and B.
Chuang Lv, Lihua You, Xiao-Dong Zhang
doaj   +1 more source

Fast Decomposition of Large Nonnegative Tensors [PDF]

open access: yes, 2015
International audienceIn Signal processing, tensor decompositions have gained in popularity this last decade. In the meantime, the volume of data to be processed has drastically increased. This calls for novel methods to handle Big Data tensors.
Cabral Farias, Rodrigo   +2 more
core   +3 more sources

Discriminant Nonnegative Tensor Factorization Algorithms [PDF]

open access: yesIEEE Transactions on Neural Networks, 2009
Nonnegative matrix factorization (NMF) has proven to be very successful for image analysis, especially for object representation and recognition. NMF requires the object tensor (with valence more than one) to be vectorized. This procedure may result in information loss since the local object structure is lost due to vectorization. Recently, in order to
openaire   +2 more sources

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