Results 41 to 50 of about 493,672 (330)

IMMERSIVE VISUALIZATION OF THE QUALITY OF DIMENSIONALITY REDUCTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Dimensionality reduction is the most widely used approach for extracting the most informative low-dimensional features from highdimensional ones. During the last two decades, different techniques (linear and nonlinear) have been proposed by researchers ...
M. Babaee, M. Datcu, G. Rigoll
doaj   +1 more source

NNNPE: non-neighbourhood and neighbourhood preserving embedding

open access: yesConnection Science, 2022
Manifold learning is an important class of methods for nonlinear dimensionality reduction. Among them, the LLE optimisation goal is to maintain the relationship between local neighbourhoods in the original embedding manifold to reduce dimensionality, and
Kaizhi Chen   +4 more
doaj   +1 more source

Analyzing Grid-Based Direct Quantum Molecular Dynamics Using Non-Linear Dimensionality Reduction

open access: yesMolecules, 2021
Grid-based schemes for simulating quantum dynamics, such as the multi-configuration time-dependent Hartree (MCTDH) method, provide highly accurate predictions of the coupled nuclear and electronic dynamics in molecular systems.
Gareth W. Richings, Scott Habershon
doaj   +1 more source

Dimensionality reduction for visualizing single-cell data using UMAP

open access: yesNature Biotechnology, 2018
Advances in single-cell technologies have enabled high-resolution dissection of tissue composition. Several tools for dimensionality reduction are available to analyze the large number of parameters generated in single-cell studies. Recently, a nonlinear
E. Becht   +7 more
semanticscholar   +1 more source

IXVC: An interactive pipeline for explaining visual clusters in dimensionality reduction visualizations with decision trees

open access: yesArray, 2021
High-dimensional data with many features are usually challenging to represent with standard visualization techniques. Usually, one has to resort to dimensionality reduction techniques such as PCA, MDS or t-SNE to represent such data.
Adrien Bibal   +3 more
doaj   +1 more source

Nonlinear Dimensionality Reduction Based on HSIC Maximization

open access: yesIEEE Access, 2018
Hilbert-Schmidt independence criterion (HSIC) is typically used to measure the statistical dependence between two sets of data. HSIC first transforms these two sets of data into two reproducing Kernel Hilbert spaces (RKHS), respectively, and then ...
Zhengming Ma   +3 more
doaj   +1 more source

Improving Dimensionality Reduction Projections for Data Visualization

open access: yesApplied Sciences, 2023
In data science and visualization, dimensionality reduction techniques have been extensively employed for exploring large datasets. These techniques involve the transformation of high-dimensional data into reduced versions, typically in 2D, with the aim ...
Bardia Rafieian   +2 more
doaj   +1 more source

Simultaneous Learning of Nonlinear Manifold and Dynamical Models for High-dimensional Time Series [PDF]

open access: yes, 2007
The goal of this work is to learn a parsimonious and informative representation for high-dimensional time series. Conceptually, this comprises two distinct yet tightly coupled tasks: learning a low-dimensional manifold and modeling the dynamical process.
Li, Rui, Sclaroff, Stan, Tian, Tai-Peng
core   +3 more sources

Nonlinear Dimensionality Reduction for Discriminative Analytics of Multiple Datasets [PDF]

open access: yesIEEE Transactions on Signal Processing, 2018
Principal component analysis (PCA) is widely used for feature extraction and dimensionality reduction, with documented merits in diverse tasks involving high-dimensional data.
Jia Chen, G. Wang, G. Giannakis
semanticscholar   +1 more source

Generating low-dimensional denoised representations of nonlinear data with superparamagnetic agents [PDF]

open access: yes, 2014
Copyright ©2016 IEICEVisualisation of high-dimensional data by means of a low-dimensional embedding plays a key role in explorative data analysis.
Christen, Markus   +2 more
core   +1 more source

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