Results 11 to 20 of about 192,804 (181)

Adaptive Process Monitoring of Online Reduced Kernel Principal Component Analysis

open access: yesShanghai Jiaotong Daxue xuebao, 2022
In the case of dynamic systems, the traditional kernel principal component analysis (KPCA) method does not perform well. The moving window kernel principal component analysis method can adapt to the normal parameter drift of dynamic systems, but it needs
GUO Jinyu, LI Wentao, LI Yuan
doaj   +1 more source

Thyristor State Evaluation Method Based on Kernel Principal Component Analysis

open access: yesIEEE Access, 2022
The reliability of the thyristor is directly related to the safe operation of the DC transmission system. A method for evaluating the state of thyristors based on kernel principal component analysis (KPCA) is proposed, which firstly considers the ...
Zhaoyu Lei   +6 more
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

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

Hyperspectral image classification based on spectral-spatial kernel principal component analysis network [PDF]

open access: yesE3S Web of Conferences, 2020
Hyperspectral imagery contains both spectral information and spatial relationships among pixels. How to combine spatial information with spectral information effectively has always been a research hotspot of hyperspectral image classification.
Fan Yanguo, Hou Shizhe, Yu Dingfeng
doaj   +1 more source

Robust Kernel Principal Component Analysis With ℓ2,1-Regularized Loss Minimization

open access: yesIEEE Access, 2020
Principal component analysis (PCA) is a widely used unsupervised method for dimensionality reduction. The kernelized version is called kernel principal component analysis (KPCA), which can capture the nonlinear data structure.
Duo Wang, Toshihisa Tanaka
doaj   +1 more source

Comprehensive evaluation of robotic global performance based on modified principal component analysis

open access: yesInternational Journal of Advanced Robotic Systems, 2020
The multivariate statistical method such as principal component analysis based on linear dimension reduction and kernel principal component analysis based on nonlinear dimension reduction as the modified principal component analysis method are commonly ...
Liming Li   +3 more
doaj   +1 more source

Research on Rolling Bearing Fault Diagnosis Based on Volterra Kernel Identification and KPCA

open access: yesShock and Vibration, 2023
A rolling bearing fault diagnosis method based on the Volterra series and kernel principal component analysis (KPCA) is proposed. In the proposed method, first, the improved genetic algorithm (IGA) is used to identify the Volterra series model of the ...
Yahui Wang   +3 more
doaj   +1 more source

Statistical properties of kernel principal component analysis [PDF]

open access: yesMachine Learning, 2004
The properties of the eigenvalues of Gram matrices are studied in a non-asymptotic setting. Using local Rademacher averages, we provide data-dependent and tight bounds for their convergence towards eigenvalues of the corresponding kernel operator. We perform these computations in a functional analytic framework which allows to deal implicitly with ...
Blanchard, Gilles   +2 more
openaire   +6 more sources

Kernel principal component analysis (KPCA) for the de-noising of communication signals [PDF]

open access: yes, 2002
This paper is concerned with the problem of de-noising for non-linear signals. Principal Component Analysis (PCA) cannot be applied to non-linear signals however it is known that using kernel functions, a non-linear signal can be transformed into a ...
Koutsogiannis, G., Soraghan, J.J.
core   +2 more sources

Home - About - Disclaimer - Privacy