Results 51 to 60 of about 156,827 (214)

Projection pursuit for exploratory supervised classification [PDF]

, 2005
In high-dimensional data, one often seeks a few interesting low-dimensional projections that reveal important features of the data. Projection pursuit is a procedure for searching high-dimensional data for interesting low-dimensional projections via the ...
Cook, Dianne, Klinke, Sigbert, Lee, Eun-Kyung, Lumley, Thomas   +3 more
core   +1 more source

Optimization of the illumination and projection system for a multiparametric acousto-optic sensor

Revista Elektrón
In previous works we presented a novel multiparametric sensor to simultaneously measure the refractive index and the speed of sound in a liquid by means of the acousto-optic effect.
Patricia María Elena Vázquez, Germán Eduardo Caro   +1 more
doaj   +1 more source

Grating-based phase-contrast and dark-field computed tomography: a single-shot method

Scientific Reports, 2017
Grating-based X-ray interferometry offers vast potential for imaging materials and tissues that are not easily visualised using conventional X-ray imaging.
Maximilian von Teuffenbach, Thomas Koehler, Andreas Fehringer, Manuel Viermetz, Bernhard Brendel, Julia Herzen, Roland Proksa, Ernst J. Rummeny, Franz Pfeiffer, Peter B. Noël   +9 more
doaj   +1 more source

Evaluation of Glymphatic System Using Diffusion MR Technique in T2DM Cases

Frontiers in Human Neuroscience, 2020
Objective: We aimed to evaluate the activity of the human glymphatic system in type 2 diabetes mellitus (T2DM) using diffusion tensor image analysis along with the perivascular space (DTI-ALPS).Methods: Diffusion tensor images were acquired to calculate ...
Guangwei Yang, Nan Deng, Yi Liu, Yingjiang Gu, Xiang Yao   +4 more
doaj   +1 more source

New method for calculating the windward area of irregular fragments

Scientific Reports
Average windward area is an important index for calculating the trajectory, velocity attenuation and terminal effect of explosive fragments. In order to solve the problems that existing theoretical method cannot calculate windward area of irregular ...
Xing-yu Liu, Di-hua Ouyang, Jia-ying Wang, Zhi-yong Guo, Chun-hai Yang   +4 more
doaj   +1 more source

Projection Pursuit for Exploratory Supervised Classification [PDF]

In high-dimensional data, one often seeks a few interesting low-dimensional projections that reveal important features of the data. Projection pursuit is a procedure for searching high-dimensional data for interesting low-dimensional projections via the ...
Thomas Lumley, Dianne Cook, Sigbert Klinke, Eun-Kyung Lee   +3 more
core  

Data-driven identification of swell potential of clayey soils for engineering surveying using genetic projection pursuit

Frontiers in Earth Science
Accurately classifying swell potential grades of clayey soils remains a significant challenge in geotechnical engineering, primarily due to the complex interplay of multiple factors that govern swelling-shrinkage behavior.
Kangming Lou, Kangming Lou, Kangming Lou, Zhu Liang, Zhu Liang, Zhu Liang, Jianhui Tan, Jianhui Tan, Jianhui Tan, Jiaming Huang, Jiaming Huang, Jiaming Huang, Zhiyuan Zhou, Zhiyuan Zhou, Zhiyuan Zhou   +14 more
doaj   +1 more source

StatVis: A visual analytics framework for statistical cluster validation in high dimensions

Array
High-dimensional datasets are common across scientific and industrial domains, yet interpreting their clustering outcomes remains a complex challenge due to projection distortions and metric ambiguities.
Donia Y. Badawood
doaj   +1 more source

Projection Pursuit with Applications to scRNA Sequencing Data [PDF]

, 2022
In this paper, we explore the limitations of PCA as a dimension reduction technique and study its extension, projection pursuit (PP), which is a broad class of linear dimension reduction methods.
Zhou, Heather, Cui, Elvis Han
core   +1 more source

On Projective Umbilics: a Geometric Invariant and an Index [PDF]

Journal of Singularities, 2018
13 pages, 7 ...
openaire   +4 more sources