Results 1 to 10 of about 2,689,032 (208)

Principal Component Analysis [PDF]

open access: yesTransfusion, 2018
Principal component analysis (PCA) is often applied for analyzing data in the most diverse areas. This work reports, in an accessible and integrated manner, several theoretical and practical aspects of PCA.
Felipe L. Gewers   +6 more
semanticscholar   +9 more sources

Robust principal component analysis? [PDF]

open access: yesJournal of the ACM, 2009
This article is about a curious phenomenon. Suppose we have a data matrix, which is the superposition of a low-rank component and a sparse component. Can we recover each component individually?
E. Candès   +3 more
semanticscholar   +4 more sources

Principal Component Analysis [PDF]

open access: yesEncyclopedia of Machine Learning, 2012
Among linear DR methods, principal component analysis (PCA) perhaps is the most important one. In linear DR, the dissimilarity of two points in a data set is defined by the Euclidean distance between them, and correspondingly, the similarity is described by their inner product.
I. Jolliffe
semanticscholar   +4 more sources

Principal Component Analysis versus Factor Analysis [PDF]

open access: yesZeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki, 2021
The article discusses selected problems related to both principal component analysis (PCA) and factor analysis (FA). In particular, both types of analysis were compared. A vector interpretation for both PCA and FA has also been proposed.
Zenon Gniazdowski
doaj   +1 more source

Online Tensor Robust Principal Component Analysis

open access: yesIEEE Access, 2022
Online robust principal component analysis (RPCA) algorithms recursively decompose incoming data into low-rank and sparse components. However, they operate on data vectors and cannot directly be applied to higher-order data arrays (e.g. video frames). In
Mohammad M. Salut, David V. Anderson
doaj   +1 more source

JEDi: java essential dynamics inspector — a molecular trajectory analysis toolkit

open access: yesBMC Bioinformatics, 2021
Background Principal component analysis (PCA) is commonly applied to the atomic trajectories of biopolymers to extract essential dynamics that describe biologically relevant motions. Although application of PCA is straightforward, specialized software to
Charles C. David   +2 more
doaj   +1 more source

Robust Bilinear Probabilistic Principal Component Analysis

open access: yesAlgorithms, 2021
Principal component analysis (PCA) is one of the most popular tools in multivariate exploratory data analysis. Its probabilistic version (PPCA) based on the maximum likelihood procedure provides a probabilistic manner to implement dimension reduction ...
Yaohang Lu, Zhongming Teng
doaj   +1 more source

Principal Component Analysis Based Wavelet Transform [PDF]

open access: yesEngineering and Technology Journal, 2012
The principal component analysis (PCA) is a valuable statistical means, implemented in time domain that has found application in many fields such as face recognition and image compression, and is a common technique for finding patterns in data of high ...
Hana M. Salman
doaj   +1 more source

A principal component analysis in concrete design

open access: yesBudownictwo o Zoptymalizowanym Potencjale Energetycznym, 2022
Over the last 200 years, ordinary concrete has evolved from four basic ingredient materials (gravel, sand, cement, and water) to multicomponent complex composites. The number and variety of the additives, admixtures, non-conventional aggregates, fillers,
Janusz Kobaka, Jacek Katzer
doaj   +1 more source

Comparison Between The Method of Principal Component Analysis And Principal Component Analysis Kernel For Imaging Dimensionality Reduction [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2019
This paper tackles with two methods to dimensionality reduction, namely principal component analysis (PCA )    in the case of linear combinations and kernel principal component  analysis method  in the case of nonlinear combinations to digital image ...
Assel Muslim Essa, Asmaa Ghalib Alrawi
doaj   +1 more source

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