Results 11 to 20 of about 6,413,007 (222)

N-Dimensional Principal Component Analysis [PDF]

open access: yes, 2010
In this paper, we first briefly introduce the multidimensional Principal Component Analysis (PCA) techniques, and then amend our previous N-dimensional PCA (ND-PCA) scheme by introducing multidirectional decomposition into ND-PCA implementation.
Yu, Hongchuan
core   +9 more sources

A resource aware distributed LSI algorithm for scalable information retrieval [PDF]

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Latent Semantic Indexing (LSI) is one of the popular techniques in the information retrieval fields.
Liu, Yang
core   +7 more sources

Research on a Denoising Method of Vibration Signals Based on IMRSVD and Effective Component Selection

open access: yesEnergies, 2022
This paper proposes a denoising method of vibration signal based on improved multiresolution singular value decomposition (IMRSVD) and effective component selection.
Xihui Chen   +3 more
doaj   +1 more source

A Novel Watermarking Method using Hadamard Matrix Quantization

open access: yesJournal of ICT Research and Applications, 2020
One of the most used watermarking algorithms is Singular Value Decomposition (SVD), which has a balanced level of imperceptibility and robustness. However, SVD uses a singular matrix for embedding and two orthogonal matrices for reconstruction, which is ...
Prajanto Wahyu Adi, Pramudi Arsiwi
doaj   +1 more source

The General Linear Model and the Generalized Singular Value Decomposition [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

SVD Aided Joint Transmitter and Receiver Design for the Uplink of Multiuser Detection Assisted MIMO Systems,

open access: yes, 2008
A novel singular value decomposition (SVD) aided uplink (UL) multiuser MIMO system is proposed. In contrast to the traditional minimum mean square error (MMSE) or zeroforcing (ZF) multiuser detection (MUD) technique, the proposed method exploits the ...
W. Liu   +5 more
core   +2 more sources

A Star Sensor On-Orbit Calibration Method Based on Singular Value Decomposition

open access: yesSensors, 2019
The navigation accuracy of a star sensor depends on the estimation accuracy of its optical parameters, and so, the parameters should be updated in real time to obtain the best performance. Current on-orbit calibration methods for star sensors mainly rely
Liang Wu   +5 more
doaj   +1 more source

Utilizing SVD and VMD for Denoising Non-Stationary Signals of Roller Bearings

open access: yesSensors, 2021
In view of the fact that vibration signals of rolling bearings are much contaminated by noise in the early failure period, this paper presents a new denoising SVD-VMD method by combining singular value decomposition (SVD) and variational mode ...
Qinghua Wang   +4 more
doaj   +1 more source

An Improved Unscented Kalman Filter Algorithm for Radar Azimuth Mutation

open access: yesInternational Journal of Aerospace Engineering, 2020
An improved UKF (Unscented Kalman Filter) algorithm is proposed to solve the problem of radar azimuth mutation. Since the radar azimuth angle will restart to count after each revolution of the radar, and when the aircraft just passes the abrupt angle ...
Dazhang You   +5 more
doaj   +1 more source

A Novel Wheelset Bearing Fault Diagnosis Method Integrated CEEMDAN, Periodic Segment Matrix, and SVD

open access: yesShock and Vibration, 2018
A novel fault diagnosis method, named CPS, is proposed based on the combination of CEEMDAN (complete ensemble empirical mode decomposition with adaptive noise), PSM (periodic segment matrix), and SVD (singular value decomposition). Firstly, the collected
Chenguang Huang   +3 more
doaj   +1 more source

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