Gaussian fitting based FDA for chemometrics
Tuomas Karna and Amaury Lendasse
In: 9th InternationalWork-Conference on Artificial Neural Networks Lecture Notes in Computer Science , 4507/2007 . (2007) Springer-Verlag , Berlin Heidelberg , pp. 186-193. ISBN 978-3-540-73006-4

Abstract

In Functional Data Analysis (FDA) multivariate data are considered as sampled functions. We propose a non-supervised method for finding a good function basis that is built on the data set. The basis consists of a set of Gaussian kernels that are optimized for an accurate fitting. The proposed methodology is experimented with two spectrometric data sets. The obtained weights are further scaled using a Delta Test (DT) to improve the prediction performance. Least Squares Support Vector Machine (LS-SVM) model is used for estimation.

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