Results 51 to 60 of about 513,547 (285)

Class-Specific Sparse Principal Component Analysis for Visual Classification

open access: yesIEEE Access, 2020
Extensive research has demonstrated that dictionary learning is active in improving the performance of the representation based classification. However, dictionary learning suffers from lacking an effective dictionary structure that can well tradeoff the
Fei Pan   +3 more
doaj   +1 more source

SUPER-RESOLUTION OF HYPERSPECTRAL IMAGES USING COMPRESSIVE SENSING BASED APPROACH [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Over the past decade hyper spectral (HS) image analysis has turned into one of the most powerful and growing technologies in the field of remote sensing.
R. C. Patel, M. V. Joshi
doaj   +1 more source

Sparse Kernel PCA for Outlier Detection

open access: yes2018 17th IEEE International Conference on Machine Learning and Applications (ICMLA), 2018
Accepted at IEEE ICMLA 2018 for Oral ...
Rudrajit Das   +2 more
openaire   +3 more sources

A sparse PCA for nonlinear fault diagnosis and robust feature discovery of industrial processes

open access: yes, 2016
Pearson’s correlation measure is only able to model linear dependence between random variables. Hence, conventional principal component analysis (PCA) based on Pearson’s correlation measure is not suitable for application to modern industrial processes ...
Yu, Hongyang   +5 more
core   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou   +6 more
wiley   +1 more source

Incremental Sparse Adaptive PCA for Streaming Industrial Sensor Data

open access: yesTelecom
Industrial Internet of Things (IIoT) systems generate high-dimensional, non-stationary sensor streams under strict memory and computational constraints, limiting the applicability of classical batch dimensionality reduction methods. While incremental PCA
Rebin Saleh, Balázs Villányi
doaj   +1 more source

Bayesian Orthogonal Component Analysis for Sparse Representation [PDF]

open access: yes, 2010
This paper addresses the problem of identifying a lower dimensional space where observed data can be sparsely represented. This undercomplete dictionary learning task can be formulated as a blind separation problem of sparse sources linearly mixed with ...
Nicolas Dobigeon   +3 more
core   +1 more source

A Retinal Matrix Stiffening Model Reveals FAK‐Dependent Mechanotransduction in Pericytes Underlies Vascular Destabilization

open access: yesAdvanced Materials, EarlyView.
In this study, we show that retinal matrix stiffness is increased in diabetic mice. Using engineered human vascular models with controlled matrix stiffness, we demonstrate that stiffening activates focal adhesion kinase (FAK) signaling in pericytes, suppresses Notch signaling, and disrupts vascular morphology.
Emily Warren   +6 more
wiley   +1 more source

Exact and Approximation Algorithms for Sparse PCA

open access: yesCoRR, 2020
49 pages, 1 ...
Yongchun Li, Weijun Xie 0001
openaire   +2 more sources

Sparse PCA for High-Dimensional Data With Outliers [PDF]

open access: yesTechnometrics, 2016
A new sparse PCA algorithm is presented, which is robust against outliers. The approach is based on the ROBPCA algorithm that generates robust but nonsparse loadings. The construction of the new ROSPCA method is detailed, as well as a selection criterion for the sparsity parameter.
Hubert, Mia   +3 more
openaire   +1 more source

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