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Support vector regression for functional data in multivariate calibration problems
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DOI：10.1016/j.aca.2008.10.063.png)
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Quantitative analyses involving instrumental signals, such as chromatograms, NIR, and MIR spectra have successfully applied nowadays for the solution of important chemical tasks. Multivariate calibration is very useful for such purposes and the commonly used methods in chemometrics consider each sample spectrum as a sequence of discrete data points. An alternative way to analyze spectral data is to consider each sample as a function, in which a functional data is obtained. Concerning regression, some linear and nonparametric regression methods have been generalized to functional data. This paper proposes the use of the recently introduced method, support vector regression for functional data (FDA-SVR) for the solution of linear and nonlinear multivariate calibration problems. Three different spectral datasets were analyzed and a comparative study was carried out to test its performance with respect to some traditional calibration methods used in chemometrics such as PLS, SVR and LS-SVR. The satisfactory results obtained with FDA-SVR suggest that it can be an effective and promising toot for multivariate calibration tasks. (C) 2008 Elsevier B.V. All rights reserved.
Keyword:
Support vector regression
Functional Data Analysis
Multivariate calibration
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IF:
6
论文数:
3.3W
被引数:
6.1W
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