期刊
ANALYTICA CHIMICA ACTA
卷 705, 期 1-2, 页码 30-34出版社
ELSEVIER
DOI: 10.1016/j.aca.2011.03.023
关键词
NIR; Feed; Chemometrics; PLS; ANN; LS-SVM
In the present study, different multivariate regression techniques have been applied to two large near-infrared data sets of feed and feed ingredients in order to fulfil the regulations and laws that exist about the chemical composition of these products. The aim of this paper was to compare the performances of different linear and nonlinear multivariate calibration techniques: PLS, ANN and LS-SVM. The results obtained show that ANN and LS-SVM are very powerful methods for non-linearity but LS-SVM can also perform quite well in the case of linear models. Using LS-SVM an improvement of the RMS for independent test sets of 10% is obtained in average compared to ANN and of 24% compared to PLS. (C) 2011 Elsevier B.V. All rights reserved.
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