Results 1 to 10 of about 1,104,935 (364)

Tutorial on PCA and approximate PCA and approximate kernel PCA

open access: yesArtificial Intelligence Review, 2022
AbstractPrincipal Component Analysis (PCA) is one of the most widely used data analysis methods in machine learning and AI. This manuscript focuses on the mathematical foundation of classical PCA and its application to a small-sample-size scenario and a large dataset in a high-dimensional space scenario.
S. Marukatat
openaire   +2 more sources

Singular Learning of Deep Multilayer Perceptrons for EEG-Based Emotion Recognition

open access: yesFrontiers in Computer Science, 2021
Human emotion recognition is an important issue in human–computer interactions, and electroencephalograph (EEG) has been widely applied to emotion recognition due to its high reliability.
Weili Guo   +6 more
doaj   +1 more source

PCA Rerandomization

open access: yesCanadian Journal of Statistics, 2023
AbstractMahalanobis distance of covariate means between treatment and control groups is often adopted as a balance criterion when implementing a rerandomization strategy. However, this criterion may not work well for high‐dimensional cases because it balances all orthogonalized covariates equally.
Hengtao Zhang   +2 more
openaire   +3 more sources

Principal Component Analyses (PCA)-based findings in population genetic studies are highly biased and must be reevaluated

open access: yesScientific Reports, 2022
Principal Component Analysis (PCA) is a multivariate analysis that reduces the complexity of datasets while preserving data covariance. The outcome can be visualized on colorful scatterplots, ideally with only a minimal loss of information.
E. Elhaik
semanticscholar   +1 more source

DWT-PCA based Video Watermarking

open access: yesJournal of Electronics,Computer Networking and Applied Mathematics, 2022
Progressed watermarking video may be a methodology for embedding additional data another to video salute. Embedded data is utilized for proprietor copyright or recognizable affirmation. It added up to approach for watermarking is shown in this System, by
Swapnil Takale, Dr. Altaaf Mulani
semanticscholar   +1 more source

Effectiveness of UV-Visible Spectroscopy (with Multi-Mode Plate Reader) and ATR-FTIR for the Discrimination of Black Marker Inks

open access: yesArab Journal of Forensic Sciences & Forensic Medicine, 2023
In the ambit of Forensic examination of the questioned documents, writing instruments often serve as an essential tool in disclosing the legitimacy of a document.
Pawan Gupta   +3 more
doaj   +1 more source

Fusion of PCA and Segmented-PCA Domain Multiscale 2-D-SSA for Effective Spectral-Spatial Feature Extraction and Data Classification in Hyperspectral Imagery

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2022
As hyperspectral imagery (HSI) contains rich spectral and spatial information, a novel principal component analysis (PCA) and segmented-PCA (SPCA)-based multiscale 2-D-singular spectrum analysis (2-D-SSA) fusion method is proposed for joint spectral ...
Hang Fu   +4 more
semanticscholar   +1 more source

PCA Meets RG [PDF]

open access: yesJournal of Statistical Physics, 2017
A system with many degrees of freedom can be characterized by a covariance matrix; principal components analysis (PCA) focuses on the eigenvalues of this matrix, hoping to find a lower dimensional description. But when the spectrum is nearly continuous, any distinction between components that we keep and those that we ignore becomes arbitrary; it then ...
Bradde, Serena, Bialek, William
openaire   +3 more sources

Hybrid modeling and prediction of oyster norovirus outbreaks

open access: yesJournal of Water and Health, 2021
This paper presents a hybrid model for predicting oyster norovirus outbreaks by combining the Artificial Neural Networks (ANNs) and Principal Component Analysis (PCA) methods and using the Moderate Resolution Imaging Spectroradiometer (MODIS) satellite ...
Shima Shamkhali Chenar, Zhiqiang Deng
doaj   +1 more source

Principal component analysis of a canning determinate tomato collection in the IPGR, Sadovo - Bulgaria [PDF]

open access: yesAgroznanje, 2012
The success of a tomato breeding programme largely depends on the study of initial material and symptoms studied as well as manifestations of dependence between them. The study was conducted during the period 2008-2011 in the IPGR, Bulgaria.
Krasteva Liliya   +2 more
doaj   +1 more source

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