Results 31 to 40 of about 26,519,848 (254)
Principal component analysis [PDF]
Principal component analysis is one of the most important and powerful methods in chemometrics as well as in a wealth of other areas. This paper provides a description of how to understand, use, and interpret principal component analysis.
Bro, Rasmus +4 more
core +2 more sources
Ensemble Principal Component Analysis
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
Principal Component Analysis In Radar Polarimetry [PDF]
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
Craniofacial similarity analysis through sparse principal component analysis.
The computer-aided craniofacial reconstruction (CFR) technique has been widely used in the fields of criminal investigation, archaeology, anthropology and cosmetic surgery.
Junli Zhao +7 more
doaj +1 more source
GrIP-PCA: Grassmann Iterative P-Norm Principal Component Analysis
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
Facial feature extraction and principal component analysis for face detection in color images [PDF]
A hybrid technique based on facial feature extraction and Principal Component Analysis (PCA) is presented for frontal face detection in color images. Facial features such as eyes and mouth are automatically detected based on properties of the associated ...
O'Connor, Noel E. +8 more
core +2 more sources
Automatic Image Alignment Using Principal Component Analysis
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
The importance of selecting the optimal number of principal components for fault detection using principal component analysis [PDF]
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
Comparison of Statistical Underlying Systematic Risk Factors and Betas Driving Returns on Equities
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
Wind forecasting using Principal Component Analysis [PDF]
We present a new statistical wind forecasting tool based on Principal Component Analysis (PCA), which is trained on past data to predict the wind speed using an ensemble of dynamically similar past events.
Fruh, Wolf-Gerrit; id_orcid +3 more
core +1 more source

