Results 21 to 30 of about 2,237,660 (304)

Factorisation Path Based Refactorisation for High-Performance LU Decomposition in Real-Time Power System Simulation

open access: yesEnergies, 2021
The integration of renewable energy sources into modern power systems requires simulations with smaller step sizes, larger network models and the incorporation of complex nonlinear component models.
Jan Dinkelbach   +4 more
doaj   +1 more source

Jordan Matrix Decomposition [PDF]

open access: yesFormalized Mathematics, 2008
We follow the rules: i, j, m, n, k denote natural numbers, K denotes a field, and a, λ denote elements of K. Let us consider K, λ, n. The Jordan block of λ and n yields a matrix over K and is defined by the conditions (Def. 1). (Def. 1)(i) len (the Jordan block of λ and n) = n, (ii) width (the Jordan block of λ and n) = n, and (iii) for all i, j such ...
openaire   +1 more source

Low-Rank Based Image Analyses for Pathological MR Image Segmentation and Recovery

open access: yesFrontiers in Neuroscience, 2019
The presence of pathologies in magnetic resonance (MR) brain images causes challenges in various image analysis areas, such as registration, atlas construction and atlas-based segmentation.
Chuanlu Lin   +3 more
doaj   +1 more source

The General Linear Model and the Generalized Singular Value Decomposition; Some Examples [PDF]

open access: yes, 2009
The general linear model with correlated error variables can be transformed by means of the generalized singular value decomposition to a very simple model (canonical form) where the least squares solution is obvious.
Knüsel, Leo
core   +1 more source

Fast Superpixel Based Subspace Low Rank Learning Method for Hyperspectral Denoising

open access: yesIEEE Access, 2018
Sequential data, such as video frames and event data, have been widely applied in the realworld. As a special kind of sequential data, hyperspectral images (HSIs) can be regarded as a sequence of 2-D images in the spectral dimension, which can be ...
Le Sun   +5 more
doaj   +1 more source

Weighted Sparseness-Based Anomaly Detection for Hyperspectral Imagery

open access: yesSensors, 2023
Anomaly detection of hyperspectral remote sensing data has recently become more attractive in hyperspectral image processing. The low-rank and sparse matrix decomposition-based anomaly detection algorithm (LRaSMD) exhibits poor detection performance in ...
Xing Lian   +6 more
doaj   +1 more source

A Transmission Prediction Mechanism Exploiting Comprehensive Node Forwarding Capability in Opportunistic Networks

open access: yesIEEE Access, 2019
Opportunistic network enables users to form an instant network for data sharing, which is a type of Ad-hoc network in nature, thus depends on cooperation between nodes to complete message transmission.
Peng Zheng   +3 more
doaj   +1 more source

Multi-model deep learning approach for collaborative filtering recommendation system

open access: yesCAAI Transactions on Intelligence Technology, 2020
As a result of a huge volume of implicit feedback such as browsing and clicks, many researchers are involving in designing recommender systems (RSs) based on implicit feedback.
Mohammed Fadhel Aljunid   +1 more
doaj   +1 more source

CS Decomposition Based Bayesian Subspace Estimation [PDF]

open access: yes, 2012
In numerous applications, it is required to estimate the principal subspace of the data, possibly from a very limited number of samples. Additionally, it often occurs that some rough knowledge about this subspace is available and could be used to improve
Besson, Olivier   +2 more
core   +1 more source

The Roles of Majorization and Generalized Triangular Decomposition in Communication and Signal Processing [PDF]

open access: yes, 2011
Signal processing is an art that deals with the representation, transformation, and manipulation of the signals and the information they contain based on their specific features.
Weng, Ching-Chih
core   +1 more source

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