Results 41 to 50 of about 8,013,557 (321)

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

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

Considerably Improving Clustering Algorithms Using UMAP Dimensionality Reduction Technique: A Comparative Study

open access: yesInternational Conference on Image and Signal Processing, 2020
Dimensionality reduction is widely used in machine learning and big data analytics since it helps to analyze and to visualize large, high-dimensional datasets.
M. Allaoui, M. L. Kherfi, A. Cheriet
semanticscholar   +1 more source

The Effect of Different Dimensionality Reduction Techniques on Machine Learning Overfitting Problem

open access: yes, 2021
In most conditions, it is a problematic mission for a machine-learning model with a data record, which has various attributes, to be trained. There is always a proportional relationship between the increase of model features and the arrival to the ...
M. A. Salam   +3 more
semanticscholar   +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

A comparative dimensionality reduction study in telecom customer segmentation using deep learning and PCA

open access: yesJournal of Big Data, 2020
Telecom Companies logs customer’s actions which generate a huge amount of data that can bring important findings related to customer’s behavior and needs.
Maha Alkhayrat   +2 more
semanticscholar   +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  

Regional-scale groundwater analysis with dimensionality reduction [PDF]

open access: yesNatural Hazards and Earth System Sciences
Given the importance of groundwater for freshwater provision and groundwater-dependent ecosystems, understanding climate effects on groundwater changes at a regional scale is essential.
M. Somogyvári   +9 more
doaj   +1 more source

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