Results 31 to 40 of about 560,645 (271)

The richness of diversity in a core collection of bread wheat (Triticum aestivum L.)

open access: yesElectronic Journal of Plant Breeding, 2018
Diversity evaluation provides opportunity to assess genetically important distinct traits that will effectively contribute to improvement of genotypes. Assessing genetic diversity in a core collection is key to find out the ways to efficient utilization
Vivek Sharma   +4 more
doaj   +1 more source

Principal Component Regression Modelling with Variational Bayesian Approach to Overcome Multicollinearity at Various Levels of Missing Data Proportion

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
This study aims to model Principal Component Regression (PCR) using Variational Bayesian Principal Component Analysis (VBPCA) with Ordinary Least Square (OLS) as a method of estimating regression parameters to overcome multicollinearity at various levels
Nabila Azarin Balqis   +2 more
doaj   +1 more source

Optimized Principal Component Analysis on Coronagraphic Images of the Fomalhaut System [PDF]

open access: yes, 2013
We present the results of a study to optimize the principal component analysis (PCA) algorithm for planet detection, a new algorithm complementing ADI and LOCI for increasing the contrast achievable next to a bright star.
Amara, A.   +3 more
core   +3 more sources

Deteksi Kavitasi Berbasis Getaran Pada Pompa Sentrifugal Menggunakan Principal Component Analysis (PCA)

open access: yesSemesta Teknika, 2018
A centrifugal pump is one type of pumps that widely used in industries. Its mechanism which creates pressure changes may cause cavitation. Cavitation phenomenon that is not properly maintained may results fatal breakdown leading to high economic losses ...
Berli Paripurna Kamiel   +1 more
doaj   +1 more source

Fault diagnosis of WOA-SVM high voltage circuit breaker based on PCA Principal Component Analysis

open access: yesEnergy Reports, 2023
High voltage circuit breakers (HVCB) are significant protection and control devices for electric systems, and its operating state directly influences the stability and reliability of electric systems. In order to solve the problem of low precision of the
Liyuan Yang   +3 more
doaj   +1 more source

Multiscale principal component analysis

open access: yes, 2013
Principal component analysis (PCA) is an important tool in exploring data. The conventional approach to PCA leads to a solution which favours the structures with large variances.
Akinduko, A. A., Gorban, A. N.
core   +1 more source

PENGENALAN POLA SENYUM MENGGUNAKAN BACKPROPAGATION BERBASIS EKSTRAKSI FITUR PRINCIPAL COMPONENT ANALYSIS (PCA)

open access: yesRekayasa, 2011
Pada penelitian ini dilakukan pengenalan pola senyum menggunakan backpropagation berbasis ekstraksi fitur Principal Component Analysis (PCA). Penelitian ini bertujuan untuk mengembangkan penelitian tentang pengenalan ekspresi wajah, yaitu pola senyum ...
Rima Tri Wahyuningrum
doaj   +1 more source

FINGERPRINT ANALYSIS OF Stevia rebaudiana USING HIERACHIAL CLUSTER ANALYSIS (HCA) AND PRINCIPAL COMPONENT ANALYSIS (PCA)

open access: yesMajalah Obat Tradisional, 2016
Bioactivity herbal plant is influenced by its active compounds and consistency. Stevia rebaudiana contains bioactive compounds, diterpene glycosides which have antidiabetes activity.
Yohanes Martono   +3 more
doaj   +1 more source

Dynamic gesture recognition using PCA with multi-scale theory and HMM [PDF]

open access: yes, 2001
In this paper, a dynamic gesture recognition system is presented which requires no special hardware other than a Webcam. The system is based on a novel method combining Principal Component Analysis (PCA) with hierarchical multi-scale theory and Discrete ...
Sutherland, Alistair, Wu, Hai
core   +1 more source

Data mining of particulate matter (PM2.5) using Principal Component Analysis (PCA) in Isfahan [PDF]

open access: yesاکولوژی انسانی
Elevated concentrations of particulate matter (PMs), particularly PM2.5, are significantly influenced by various anthropogenic activities, including industrial processes, population growth, and fossil fuel combustion, especially during peak urban hours ...
Sohrab Hasheminejad   +2 more
doaj   +1 more source

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