Results 31 to 40 of about 184,536 (160)

Community awareness about disaster preparedness: Principal component analysis (PCA)

open access: yesMajmaah Journal of Health Sciences, 2021
Background and Aim: Responsibility for disaster preparedness is not limit- ed to healthcare institutions and healthcare providers; communities must also be involved. Knowledge of community members’ awareness of disaster preparedness will enhance and strengthen a community’s resilience to disaster.
Abdullelah Thobaity, Modi Moteri
openaire   +1 more source

Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil

open access: yesApplied Surface Science Advances, 2023
Principal component analysis (PCA), as applied to the processing of the complex X-ray photoelectron spectroscopy (XPS) lineshapes, is discussed. PCA analysis example is provided of complex native iron oxide films on Fe foil XPS spectra further modified ...
Neal Fairley   +3 more
doaj   +1 more source

A Corrected Criterion for Selecting the Optimum Number of Principal Components

open access: yesAustrian Journal of Statistics, 2016
Determining the optimum number of components to be retained is a key problem in principal component analysis (PCA). Besides the rule of thumb estimates there exist several sophisticated methods for automatically selecting the dimensionality of the data ...
Hannes Kazianka, Jürgen Pilz
doaj   +1 more source

A Single Classifier Using Principal Components Vs Multi-Classifier System: In Landuse-LandCover Classification of WorldView-2 Sensor Data [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In remote sensing community, Principal Component Analysis (PCA) is widely utilized for dimensionality reduction in order to deal with high spectral-dimension data. However, dimensionality reduction through PCA results in loss of some spectral information.
L .N. Eeti   +2 more
doaj   +1 more source

Face Detection using Principal Component Analysis (PCA)

open access: yesInternational Journal of Computer Applications, 2014
Face Detection makes it possible to use the facial images of a person to authenticate him into secure system, for criminal identification, for passport verification etc. It is done by Principal Component Analysis (PCA).Face images are projected onto a face space that encodes best variation among known face images.
Tarun Metta, Jatin Agarwal, Pushpak Dave
openaire   +1 more source

The Use of High-Resolution Satellite Imagery to Determine the Status of a Large-Scale Outbreak of Southern Pine Beetle

open access: yesRemote Sensing
Timely detection of insect infestation (or other disturbance) in a forest is vital for an adequate response plan to be developed. To determine the status of an active infestation of southern pine beetle (Dendroctonus frontalis) in the Bienville National ...
Michael K. Crosby   +6 more
doaj   +1 more source

Exploring functional data analysis and wavelet principal component analysis on ecstasy (MDMA) wastewater data

open access: yesBMC Medical Research Methodology, 2016
Background Wastewater-based epidemiology (WBE) is a novel approach in drug use epidemiology which aims to monitor the extent of use of various drugs in a community.
Stefania Salvatore   +2 more
doaj   +1 more source

randPedPCA: rapid approximation of principal components from large pedigrees

open access: yesGenetics Selection Evolution
Background Pedigrees continue to be extremely important in agriculture and conservation genetics, with the pedigrees of modern breeding programmes easily comprising millions of records.
Hanbin Lee   +3 more
doaj   +1 more source

Biplots for compositional data derived from generalized joint diagonalization methods

open access: yesApplied Computing and Geosciences, 2020
Biplots constructed from principal components of a compositional data set are an established means to explore its features. Principal Component Analysis (PCA) is also used to transform a set of spatial variables into spatially decorrelated factors ...
U. Mueller   +3 more
doaj   +1 more source

PEMBUATAN PERANGKAT LUNAK PENGENALAN WAJAH MENGGUNAKAN PRINCIPAL COMPONENTS ANALYSIS

open access: yesJurnal Informatika, 2001
Face recognition is one of many important researches, and today, many applications have implemented it. Through development of techniques like Principal Components Analysis (PCA), computers can now outperform human in many face recognition tasks ...
Kartika Gunadi   +1 more
doaj  

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