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Nonlinear estimators from ICA mixture models
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DOI：10.1016/j.sigpro.2018.10.003.png)
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Independent Component Analyzers Mixture Models (ICAMM) are versatile and general models for a large variety of probability density functions. In this paper we assume ICAMM to derive new MAP and LMSE estimators. The first one (MAP-ICAMM) is obtained by an iterative gradient algorithm, while the second (LMSE-ICAMM) admits a closed-form solution. Both estimators can be combined by using LMSE-ICAMM to initialize the iterative computation of MAP-ICAMM .The new estimators are applied to the reconstruction of missed channels in EEG multichannel analysis. The experiments demonstrate the superiority of the new estimators with respect to: Spherical Splines, Hermite, Partial Least Squares, Support Vector Regression, and Random Forest Regression. (C) 2018 Elsevier B.V. All rights reserved.
Keyword:
ICA
Nonlinear estimators
LMSE
MAP
EEG reconstruction
non-Gaussian mixtures
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3.6
论文数:
10.0K
被引数:
1.7W
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