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Robust principal components for hyperspectral data analysis
(Springer, 2009-07)
Remote sensing data present peculiar features and characteristics that may make their statistical processing and analysis a difficult task. Among them, it can be mentioned the volume of data involved, the redundancy, the ...
Consistent Principal Component Modes from Molecular Dynamics Simulations of Proteins
(American Chemical Society, 2017-04)
Principal component analysis is a technique widely used for studying the movements of proteins using data collected from molecular dynamics simulations. In spite of its extensive use, the technique has a serious drawback: ...
Scores and principal components: the relationship between components due to subjects and to variables
(Universidad Complutense de Madrid. Facultad de Psicología, 2000-05)
The main purpose of this article is: given a score matrix called S, find out the joint proportional contribution of factors due to persons (conditions, situations, and so forth) and factors due to variables, for any sij ...
A new principal component analysis-based approach for testing "similarity" of drug dissolution profiles
(Elsevier Science, 2008-05)
A new approach for testing batch "similarity" through comparison of drug dissolution profiles, based on principal component analysis with the establishment of a confidence region (PCA-CR), is presented. The dissolution ...
Gdpc: An R package for generalized dynamic principal components
(Journal Statistical Software, 2020-02-23)
Gdpc is an R package for the computation of the generalized dynamic principal components proposed in Peña and Yohai (2016). In this paper, we briefly introduce the problem of dynamical principal components, propose a ...
Robust nonlinear principal components
(Springer, 2015-03)
All known approaches to nonlinear principal components are based on minimizing a quadratic loss, which makes them sensitive to data contamination. A predictive approach in which a spline curve is fit minimizing a residual ...
Stratosphere/troposphere joint variability in southern South America as estimated from a principal components analysis
(Springer Wien, 2017-06)
To understand how the tropopause annual evolution relates to the troposphere and lower stratosphere over southern South America, the study analyzes the joint behavior of single and double thermal tropopauses with the 500 ...
Retaining principal components for discrete variablesRetención de componentes principales para variables discretas
(Universidad de Barcelona, 2012-01)
El presente estudio trata sobre diferentes criterios para la retención de componentes en el análisis de componentes principales (PCA) aplicado a escalas tipo Likert, que son comunes en los cuestionarios psicológicos. El ...
Feature selection for functional data
(Elsevier Inc, 2016-04)
We herein introduce a general procedure to capture the relevant information from a functional data set in relation to a statistical method used to analyze the data, such as, classification, regression or principal components. ...