Fletta eftir efnisorði "Dimensionality reduction"

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Design-Oriented Two-Stage Surrogate Modeling of Miniaturized Microstrip Circuits With Dimensionality Reduction

Koziel, Slawomir; Pietrenko-Dabrowska, Anna; Al-Hasan, Mu'ath (Institute of Electrical and Electronics Engineers (IEEE), 2020)

Contemporary microwave design heavily relies on full-wave electromagnetic (EM) simulation tools. This is especially the case for miniaturized devices where EM cross-coupling effects cannot be adequately accounted for using equivalent network models. ...
Spectral transformation based on nonlinear principal component analysis for dimensionality reduction of hyperspectral images

Licciardi, Giorgio; Chanussot, Jocelyn (Informa UK Limited, 2018-01)

Managing transmission and storage of hyperspectral (HS) images can be extremely difficult. Thus, the dimensionality reduction of HS data becomes necessary. Among several dimensionality reduction techniques, transform-based have found to be effective ...
Unsupervised and Supervised Feature Extraction Methods for Hyperspectral Images Based on Mixtures of Factor Analyzers

Zhao, Bin; Ulfarsson, Magnus; Sveinsson, Jóhannes Rúnar; Chanussot, Jocelyn (MDPI AG, 2020-04-07)

This paper proposes three feature extraction (FE) methods based on density estimation for hyperspectral images (HSIs). The methods are a mixture of factor analyzers (MFA), deep MFA (DMFA), and supervised MFA (SMFA). The MFA extends the Gaussian mixture ...

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