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Non-Greedy L21-Norm Maximization for Principal Component Analysis [PDF]

open access: greenIEEE Transactions on Image Processing, 2016
Principal Component Analysis (PCA) is one of the most important unsupervised methods to handle high-dimensional data. However, due to the high computational complexity of its eigen-decomposition solution, it is hard to apply PCA to the large-scale data with high dimensionality, e.g., millions of data points with millions of variables.
Feiping Nie, Heng Huang
  +7 more sources

Robust Flexible Feature Selection via Exclusive L21 Regularization [PDF]

open access: goldProceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence, 2019
Recently, exclusive lasso has demonstrated its promising results in selecting discriminative features for each class. The sparsity is enforced on each feature across all the classes via L12-norm. However, the exclusive sparsity of L12-norm could not screen out a large amount of irrelevant and redundant noise features in high-dimensional data space ...
Di Ming, Chris Ding
openalex   +2 more sources

Ductility deterioration induced by L21 phase in ferritic alloy through Ti addition

open access: goldJournal of Materials Research and Technology, 2023
Ductility deterioration induced by L21-Ni2AlTi precipitates in the aged ferritic alloys was examined systematically by using a combination of scanning transmission electron microscope (STEM), mechanical tests and first-principles thermodynamic ...
Xu Chen   +7 more
doaj   +2 more sources

Dimensionality reduction by LPP‐L21

open access: yesIET Computer Vision, 2018
Locality preserving projection (LPP) is one of the most representative linear manifold learning methods and well exploits intrinsic structure of data. However, the performance of LPP remarkably degenerate in the presence of outliers.
Shujian Wang   +3 more
doaj   +2 more sources

171 Scandium-based full Heusler compounds: A comprehensive study of competition between XA and L21 atomic ordering

open access: goldResults in Physics, 2019
The site-preference rule (SPR), which is widely used to design and study the properties of full-Heusler alloys X2YZ, is applied to determine the positions of different transition-metal elements with various numbers of valence electrons in Heusler alloys.
Yilin Han   +5 more
doaj   +2 more sources

Molecular cloning and characterization of porcine ribosomal protein L21

open access: goldJournal of Veterinary Science, 2017
Ribosomal protein L21 (RPL21) is a structural component of the 60S subunit of the eukaryotic ribosome. This protein has an important role in protein synthesis and the occurrence of hereditary diseases. Pig is a common laboratory model, however, to the best of our knowledge, its RPL21 gene has not been cloned to date.
Wu-Sheng Sun   +8 more
openalex   +3 more sources

Strain-induced magnetocrystalline anisotropy in L21 Co2FeSi: first-principles study [PDF]

open access: gold
Abstract The Co2FeSi/Fe/Pb(Mg1/3Nb2/3)O3-PbTiO3 interface exhibits the strong magnetoelectric coupling attributed from the magnetocrystalline anisotropy (MCA) of Co2FeSi. To enable the design of the MCA based on crystal structures and plane orientations, we examined the relationship between the atomic configurations and the MCA of Co2FeSi under
Ryota Watarai, Yoshihiro Gohda
  +5 more sources

High L21-atomic ordering and spin-polarization in Co2MnZ (Z = Ge, Sn) Heusler thin films with low-temperature annealing process

open access: yesAPL Materials, 2022
Although an enhanced magnetoresistance (MR) has been observed in many Co2-based Heusler alloys by promoting their structural ordering from B2 to L21 by post-annealing at higher temperatures (Tann > 500 °C), it is desirable to search for other Heusler ...
Varun Kumar Kushwaha   +7 more
doaj   +1 more source

Quality Policy in Creating Organizational Maturity in a Medical Tourism Enterprise

open access: yesMarketing of Scientific and Research Organizations, 2022
This article examines the concept of organizational maturity, with particular emphasis on the importance that it can play in medical tourism. First, the concept of organization is subjected to an interdisciplinary interpretation in the light of the ...
Kordasiewicz Joanna
doaj   +1 more source

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