Results 21 to 30 of about 25,782,438 (282)

Principal Component Analysis in ECG Signal Processing

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper reviews the current status of principal component analysis in the area of ECG signal processing. The fundamentals of PCA are briefly described and the relationship between PCA and Karhunen-Loève transform is explained.
Roig José Millet   +4 more
doaj   +2 more sources

Color face recognition using quaternion PCA [PDF]

open access: yes, 2011
Recently, biometric systems have attracted the attention of both academic and industrial communities. Advances in hardware and software technologies have paved the way to such growing interest.
Jaha, Emad Sami, Lahouari, Ghouti
core   +2 more sources

Fault Diagnosis of Industrial Process Based on FDKICA-PCA

open access: yesJournal of Harbin University of Science and Technology, 2018
Because the dynamic characteristics of autocorrelation and lag correlation in production process are neglected in fault diagnosis,Kernel Independent Component AnalysisPrincipal Component Analysis (KICAPCA) is very poor in detecting small and gradual ...
ZHANG Jing   +3 more
doaj   +1 more source

Multivariate classification of provinces of Vietnam according to the level of sustainable development

open access: yesBulletin of Geography. Socio-Economic Series, 2021
The research aims to classify the level of sustainability of 63 provinces in Vietnam upon 24 indicators reflecting three main dimensions of sustainable development by using multivariate classification method for the year 2014–2016.
Truong Van Canh
doaj   +1 more source

Improved Algorithms for the Classification of Rough Rice Using a Bionic Electronic Nose Based on PCA and the Wilks Distribution

open access: yesSensors, 2014
Principal Component Analysis (PCA) is one of the main methods used for electronic nose pattern recognition. However, poor classification performance is common in classification and recognition when using regular PCA.
Sai Xu   +4 more
doaj   +1 more source

PCA of PCA: principal component analysis of partial covering absorption in NGC 1365 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
We analyse 400 ks of XMM-Newton data on the active galactic nucleus NGC 1365 using principal component analysis (PCA) to identify model independent spectral components. We find two significant components and demonstrate that they are qualitatively different from those found in MCG?6-30-15 using the same method.
Parker, M. L.   +3 more
openaire   +4 more sources

Urban water quality evaluation using multivariate analysis [PDF]

open access: yesActa Montanistica Slovaca, 2007
A data set, obtained for the sake of drinking water quality monitoring, was analysed by multivariate methods. Principal component analysis (PCA) reduced the data dimensionality from 18 original physico-chemical and microbiological parameters determined ...
Petr Praus
doaj  

Principal component and factor analysis to study variations in the aging lumbar spine [PDF]

open access: yes, 2015
Human spine is a multifunctional structure of human body consisting of bones, joints, ligaments and muscles which all undergo a process of change with the age. A sudden change in these features either naturally or thorough injury can lead to some serious
Shah, Akeel A.   +4 more
core   +1 more source

The importance of selecting the optimal number of principal components for fault detection using principal component analysis [PDF]

open access: yes, 2012
Includes summary.Includes bibliographical references.Fault detection and isolation are the two fundamental building blocks of process monitoring. Accurate and efficient process monitoring increases plant availability and utilization.
Khwambala, Patricia Helen
core   +1 more source

Coal and gas outburst prediction model based on principal component analysis and improved support vector machine

open access: yesGeohazard Mechanics, 2023
In order to predict the coal outburst risk quickly and accurately, a PCA-FA-SVM based coal and gas outburst risk prediction model was designed. Principal component analysis (PCA) was used to pre-process the original data samples, extract the principal ...
Chaojun Fan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy