Results 41 to 50 of about 5,853,511 (292)

Adaptive Safe Semi-Supervised Extreme Machine Learning

open access: yesIEEE Access, 2019
Semi-supervised learning (SSL) based on manifold regularization (MR) is an excellent learning framework. However, the performance of SSL heavily depends on the construction of manifold graph and the safety degrees of unlabeled samples.
Jun Ma, Chao Yuan
doaj   +1 more source

Robust Beamforming for RIS-Aided Communications: Gradient-Based Manifold Meta Learning [PDF]

open access: yesIEEE Transactions on Wireless Communications
Reconfigurable intelligent surface (RIS) has become a promising technology to realize the programmable wireless environment via steering the incident signal in fully customizable ways.
Fenghao Zhu   +8 more
semanticscholar   +1 more source

A Neural Network Based on SPD Manifold Learning for Skeleton-Based Hand Gesture Recognition [PDF]

open access: yesComputer Vision and Pattern Recognition, 2019
This paper proposes a new neural network based on SPD manifold learning for skeleton-based hand gesture recognition. Given the stream of hand’s joint positions, our approach combines two aggregation processes on respectively spatial and temporal domains.
X. Nguyen   +3 more
semanticscholar   +1 more source

Manifold Learning via Manifold Deflation

open access: yes, 2020
Nonlinear dimensionality reduction methods provide a valuable means to visualize and interpret high-dimensional data. However, many popular methods can fail dramatically, even on simple two-dimensional manifolds, due to problems such as vulnerability to noise, repeated eigendirections, holes in convex bodies, and boundary bias.
Ting, Daniel, Jordan, Michael I.
openaire   +2 more sources

A Comparative Review of Manifold Learning Techniques for Hyperspectral and Polarimetric SAR Image Fusion

open access: yesRemote Sensing, 2019
In remote sensing, hyperspectral and polarimetric synthetic aperture radar (PolSAR) images are the two most versatile data sources for a wide range of applications such as land use land cover classification.
Jingliang Hu   +3 more
doaj   +1 more source

Multi-objective genetic programming for manifold learning: balancing quality and dimensionality [PDF]

open access: yesGenetic Programming and Evolvable Machines, 2020
Manifold learning techniques have become increasingly valuable as data continues to grow in size. By discovering a lower-dimensional representation (embedding) of the structure of a dataset, manifold learning algorithms can substantially reduce the ...
Andrew Lensen, Mengjie Zhang, Bing Xue
semanticscholar   +1 more source

Curvature-aware manifold learning [PDF]

open access: yesPattern Recognition, 2018
Traditional manifold learning algorithms assumed that the embedded manifold is globally or locally isometric to Euclidean space. Under this assumption, they divided manifold into a set of overlapping local patches which are locally isometric to linear subsets of Euclidean space. By analyzing the global or local isometry assumptions it can be shown that
openaire   +2 more sources

Graph Regularized Variational Ladder Networks for Semi-Supervised Learning

open access: yesIEEE Access, 2020
To tackle the problem of semi-supervised learning (SSL), we propose a new autoencoder-based deep model. Ladder networks (LN) is an autoencoder-based method for representation learning which has been successfully applied on unsupervised learning and semi ...
Cong Hu, Xiao-Ning Song
doaj   +1 more source

Learning on manifolds without manifold learning

open access: yesNeural Networks
Function approximation based on data drawn randomly from an unknown distribution is an important problem in machine learning. The manifold hypothesis assumes that the data is sampled from an unknown submanifold of a high dimensional Euclidean space.
H.N. Mhaskar, Ryan O’Dowd
openaire   +3 more sources

Joint Characterization of Sentinel-2 Reflectance: Insights from Manifold Learning

open access: yesRemote Sensing, 2022
Most applications of multispectral imaging are explicitly or implicitly dependent on the dimensionality and topology of the spectral mixing space. Mixing space characterization refers to the identification of salient properties of the set of pixel ...
Daniel Sousa, Christopher Small
doaj   +1 more source

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