Results 31 to 40 of about 597,726 (265)

ANOVA bootstrapped principal components analysis for logistic regression

open access: yesCroatian Review of Economic, Business and Social Statistics, 2022
Principal components analysis (PCA) is often used as a dimensionality reduction technique. A small number of principal components is selected to be used in a classification or a regression model to boost accuracy.
Toleva Borislava
doaj   +1 more source

The Modified Principal Component Analysis Feature Extraction Method for the Task of Diagnosing Chronic Lymphocytic Leukemia Type B-CLL [PDF]

open access: yesJournal of Universal Computer Science, 2020
The vast majority of medical problems are characterised by the relatively high spatial dimensionality of the task, which becomes problematic for many classic pattern recognition algorithms due to the well-known phenomenon of the curse of dimensionality ...
Mariusz Topolski
doaj   +3 more sources

Principal Component Regression by Principal Component Selection

open access: yesCommunications for Statistical Applications and Methods, 2015
Abstract We propose a selection procedure of principal components in principal component regression. Our methodselects principal components using variable selection procedures instead of a small subset of major principalcomponents in principal component regression. Our procedure consists of two steps to improve estimation andprediction.
Hosung Lee, Yun Mi Park, Seokho Lee
openaire   +2 more sources

Principal Component Classification

open access: yesCoRR, 2022
We propose to directly compute classification estimates by learning features encoded with their class scores using PCA. Our resulting model has a encoder-decoder structure suitable for supervised learning, it is computationally efficient and performs well for classification on several datasets.
openaire   +2 more sources

Spatial variability of soil erodibility in pastures and forest areas in the municipality of Porto Velho, Rondônia

open access: yesRevista Ambiente & Água, 2021
“Erodibility” is a characteristic of the soil that represents the susceptibility with which its particles from the most superficial layer are taken and transported to lower places by erosive agents, causing environmental and economic damages.
Lucivânia Izidoro da Silva   +6 more
doaj   +1 more source

Euler Principal Component Analysis [PDF]

open access: yesInternational Journal of Computer Vision, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stephan Liwicki   +3 more
openaire   +4 more sources

Principal Components Analysis Utility in the Livestock Field

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies, 2016
Principal Component Analysis is a method factor - factor analysis - and is used to reduce data complexity by replacingmassive data sets by smaller sets.
Ancuta Simona Rotaru   +3 more
doaj   +1 more source

Dynamic Functional Principal Components [PDF]

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 2014
SummaryWe address the problem of dimension reduction for time series of functional data (Xt:t∈Z). Such functional time series frequently arise, for example, when a continuous time process is segmented into some smaller natural units, such as days. Then each X  t represents one intraday curve.
Hörmann, Siegfried   +2 more
openaire   +5 more sources

Cup‐Like Nuclei Is a Hallmark of DUX4/ERG Acute Lymphoblastic Leukemia and Reveals Cytoplasmic Mitochondria Accumulation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Cup‐like nuclei are a distinctive morphological feature observed in certain cases of acute lymphoblastic leukemia (ALL). We provide evidence that they characterize DUX4/ERG ALL independently of IKZF1 deletion and reveal marked mitochondrial accumulation in this ALL subset.
Chloé Arfeuille   +9 more
wiley   +1 more source

Linear Dimensionality Reduction: What Is Better?

open access: yesData
This research paper focuses on dimensionality reduction, which is a major subproblem in any data processing operation. Dimensionality reduction based on principal components is the most used methodology. Our paper examines three heuristics, namely Kaiser’
Mohit Baliyan, Evgeny M. Mirkes
doaj   +1 more source

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