Results 31 to 40 of about 614,012 (260)

GrIP-PCA: Grassmann Iterative P-Norm Principal Component Analysis

open access: yesIEEE Open Journal of Signal Processing, 2020
Principal component analysis is one of the most commonly used methods for dimensionality reduction in signal processing. However, the most commonly used PCA formulation is based on the L2-norm, which can be highly influenced by outlier data.
Breton Minnehan   +2 more
doaj   +1 more source

Ensemble Principal Component Analysis

open access: yesIEEE Access
Efficient representations of data are essential for processing, exploration, and human understanding, and Principal Component Analysis (PCA) is one of the most common dimensionality reduction techniques used for the analysis of large, multivariate ...
Olga Dorabiala   +2 more
doaj   +1 more source

Automatic Image Alignment Using Principal Component Analysis

open access: yesIEEE Access, 2018
We present an automatic technique for image alignment using a principal component analysis (PCA) that broadly consists of two steps. The first step is the segmentation of the region of interest by thresholding.
Hafiz Zia Ur Rehman, Sungon Lee
doaj   +1 more source

Comparison of Statistical Underlying Systematic Risk Factors and Betas Driving Returns on Equities

open access: yesRevista Mexicana de Economía y Finanzas Nueva Época REMEF, 2021
The objective of this paper is to compare four dimension reduction techniques used for extracting the underlying systematic risk factors driving returns on equities of the Mexican Market.
Rogelio Ladrón de Guevara Cortés   +2 more
doaj   +1 more source

Principal Component Analysis In Radar Polarimetry [PDF]

open access: yesAdvances in Radio Science, 2005
Second order moments of multivariate (often Gaussian) joint probability density functions can be described by the covariance or normalised correlation matrices or by the Kennaugh matrix (Kronecker matrix).
A. Danklmayer, M. Chandra, E. Lüneburg
doaj  

Interpretable Functional Principal Component Analysis

open access: yesBiometrics, 2015
SummaryFunctional principal component analysis (FPCA) is a popular approach to explore major sources of variation in a sample of random curves. These major sources of variation are represented by functional principal components (FPCs). The intervals where the values of FPCs are significant are interpreted as where sample curves have major variations ...
Lin, Zhenhua   +2 more
openaire   +2 more sources

Parametric Functional Principal Component Analysis

open access: yesBiometrics, 2017
Summary Functional principal component analysis (FPCA) is a popular approach in functional data analysis to explore major sources of variation in a sample of random curves. These major sources of variation are represented by functional principal components (FPCs).
Sang, Peijun   +2 more
openaire   +3 more sources

Stable Analysis of Compressive Principal Component Pursuit

open access: yesAlgorithms, 2017
Compressive principal component pursuit (CPCP) recovers a target matrix that is a superposition of low-complexity structures from a small set of linear measurements. Pervious works mainly focus on the analysis of the existence and uniqueness.
Qingshan You, Qun Wan
doaj   +1 more source

Principal component analysis applied to remote sensing

open access: yesModelling in Science Education and Learning, 2013
The main objective of this article was to show an application of principal component analysis (PCA) which is used in two science degrees. Particularly, PCA analysis was used to obtain information of the land cover from satellite images.
Javier Estornell   +3 more
doaj   +1 more source

Effects of Cancer Treatment on Somatosensory and Nociceptive Processing in Children and Adolescents: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Chemotherapy‐induced peripheral neuropathy remains a major complication in pediatric cancer, with disrupted somatosensory and nociceptive processing being a key aspect. This review synthesizes empirical studies on alterations in somatosensory and nociceptive processing in children and adolescents with cancer.
Julia Schweiger   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy