Results 31 to 40 of about 201,485 (174)

Tangent space estimation for smooth embeddings of Riemannian manifolds [PDF]

open access: yes, 2012
Numerous dimensionality reduction problems in data analysis involve the recovery of low-dimensional models or the learning of manifolds underlying sets of data. Many manifold learning methods require the estimation of the tangent space of the manifold at
Frossard, Pascal   +2 more
core   +6 more sources

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

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

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

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

A Nonparametric Model for Multi-Manifold Clustering with Mixture of Gaussians and Graph Consistency

open access: yesEntropy, 2018
Multi-manifold clustering is among the most fundamental tasks in signal processing and machine learning. Although the existing multi-manifold clustering methods are quite powerful, learning the cluster number automatically from data is still a challenge.
Xulun Ye, Jieyu Zhao, Yu Chen
doaj   +1 more source

Manifold Learning by Graduated Optimization [PDF]

open access: yesIEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics), 2011
We present an algorithm for manifold learning called manifold sculpting , which utilizes graduated optimization to seek an accurate manifold embedding. An empirical analysis across a wide range of manifold problems indicates that manifold sculpting yields more accurate results than a number of existing algorithms, including Isomap, locally linear ...
M, Gashler, D, Ventura, T, Martinez
openaire   +2 more sources

Manifold for machine learning assurance [PDF]

open access: yesProceedings of the ACM/IEEE 42nd International Conference on Software Engineering: New Ideas and Emerging Results, 2020
The increasing use of machine-learning (ML) enabled systems in critical tasks fuels the quest for novel verification and validation techniques yet grounded in accepted system assurance principles. In traditional system development, model-based techniques have been widely adopted, where the central premise is that abstract models of the required system ...
Byun, Taejoon, Rayadurgam, Sanjai
openaire   +2 more sources

Learning Generative Models across Incomparable Spaces

open access: yes, 2019
Generative Adversarial Networks have shown remarkable success in learning a distribution that faithfully recovers a reference distribution in its entirety.
Alvarez-Melis, David   +3 more
core   +1 more source

Functorial Manifold Learning

open access: yesElectronic Proceedings in Theoretical Computer Science, 2022
In Proceedings ACT 2021, arXiv:2211 ...
openaire   +2 more sources

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