Accelerated Nonlinear Gaussianization for Feature Extraction

Alexandru Paul Condurache; Alfred Mertins

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Paper

Accelerated Nonlinear Gaussianization for Feature Extraction

Topics: Classification; Density Estimation; Feature Selection and Extraction; Gaussian Processes

In Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods ICPRAM - Volume 1, 121-126, 2013 , Barcelona, Spain

Authors: Alexandru Paul Condurache and Alfred Mertins

Affiliation: University of Luebeck, Germany

Keyword(s): Feature Extraction, Elastic Transform, Gaussianization.

Related Ontology Subjects/Areas/Topics: Classification ; Density Estimation ; Feature Selection and Extraction ; Gaussian Processes ; Pattern Recognition ; Theory and Methods

Abstract: In a multi-class classification setup, the Gaussianization represents a nonlinear feature extraction transform with the purpose of achieving Gaussian class-conditional densities in the transformed space. The computational complexity of such a transformation increases with the dimension of the processed feature space in such a way that only relatively small dimensions can be processed. In this contribution we describe how to reduce the computational burden with the help of an adaptive grid. Thus, the Gaussianization transform is able to also handle feature spaces of higher dimensionality, improving upon its practical usability. On both artificially generated and real-application data, we demonstrate a decrease in computation complexity in comparison to the standard Gaussianization, while maintaining the effectiveness.

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Paper citation in several formats:

Paul Condurache, A. and Mertins, A. (2013). Accelerated Nonlinear Gaussianization for Feature Extraction. In Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods - ICPRAM; ISBN 978-989-8565-41-9; ISSN 2184-4313, SciTePress, pages 121-126. DOI: 10.5220/0004204701210126

@conference{icpram13,
author={Alexandru {Paul Condurache}. and Alfred Mertins.},
title={Accelerated Nonlinear Gaussianization for Feature Extraction},
booktitle={Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods - ICPRAM},
year={2013},
pages={121-126},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004204701210126},
isbn={978-989-8565-41-9},
issn={2184-4313},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods - ICPRAM
TI - Accelerated Nonlinear Gaussianization for Feature Extraction
SN - 978-989-8565-41-9
IS - 2184-4313
AU - Paul Condurache, A.
AU - Mertins, A.
PY - 2013
SP - 121
EP - 126
DO - 10.5220/0004204701210126
PB - SciTePress