Results 21 to 30 of about 392,357 (290)

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   +1 more source

Uniform Manifold Approximation and Projection (UMAP) Reveals Composite Patterns and Resolves Visualization Artifacts in Microbiome Data

open access: yesmSystems, 2021
Microbiome data are sparse and high dimensional, so effective visualization of these data requires dimensionality reduction. To date, the most commonly used method for dimensionality reduction in the microbiome is calculation of between-sample microbial ...
George Armstrong   +6 more
doaj   +1 more source

Research on Dimensionality Reduction in Network Traffic Anomaly Detection [PDF]

open access: yesJisuanji gongcheng, 2020
To implement anomaly detection for a high dimensional network with mass flow data,data dimensionality should be reduced to relieve transmission and storage burdens from the system.This paper introduces network traffic anomaly detection process and ...
CHEN Liangchen, GAO Shu, LIU Baoxu, TAO Mingfeng
doaj   +1 more source

Manifold Elastic Net: A Unified Framework for Sparse Dimension Reduction [PDF]

open access: yes, 2010
It is difficult to find the optimal sparse solution of a manifold learning based dimensionality reduction algorithm. The lasso or the elastic net penalized manifold learning based dimensionality reduction is not directly a lasso penalized least square ...
A D’aspremont   +40 more
core   +1 more source

Neighbors-Based Graph Construction for Dimensionality Reduction

open access: yesIEEE Access, 2019
Dimensionality reduction is a fundamental task in the field of data mining and machine learning. In many scenes, examples in high-dimensional space usually lie on low-dimensional manifolds; thus, learning the low-dimensional embedding is important.
Hui Tian   +3 more
doaj   +1 more source

Binary Whale Optimization Algorithm for Dimensionality Reduction

open access: yesMathematics, 2020
Feature selection (FS) was regarded as a global combinatorial optimization problem. FS is used to simplify and enhance the quality of high-dimensional datasets by selecting prominent features and removing irrelevant and redundant data to provide good ...
Abdelazim G. Hussien   +4 more
doaj   +1 more source

Cortical spatio-temporal dimensionality reduction for visual grouping [PDF]

open access: yes, 2014
The visual systems of many mammals, including humans, is able to integrate the geometric information of visual stimuli and to perform cognitive tasks already at the first stages of the cortical processing.
Barbieri, Davide   +3 more
core   +2 more sources

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

Non-Redundant Spectral Dimensionality Reduction

open access: yes, 2017
Spectral dimensionality reduction algorithms are widely used in numerous domains, including for recognition, segmentation, tracking and visualization.
A Brun   +26 more
core   +1 more source

Non-negative Dimensionality Reduction for Mammogram Classification [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2009
Directly classifying high dimensional datamay exhibit the ``curse of dimensionality'' issue thatwould negatively influence the classificationperformance with an increase in the computationalload, depending also on the classifier structure.
I. Buciu, A. Gacsadi
doaj  

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