Modeling excitation-emission fluorescence matrices with pattern recognition algorithms for classification of Argentine white wines according grape variety
| Autor: | Héctor C. Goicoechea, Silvana Mariela Azcarate, José Manuel Camiña, Adriano de Araújo Gomes, Mirta Raquel Alcaraz, Mário César Ugulino de Araújo |
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| Rok vydání: | 2014 |
| Předmět: |
N-PLS-DA
Wine SIMCA Fluorescence Analytical Chemistry Set (abstract data type) WHITE WINE Discriminative model Vitis Mathematics Excitation emission matrix Principal Component Analysis business.industry Otras Ciencias Químicas Ciencias Químicas Discriminant Analysis Pattern recognition General Medicine U-PLS-DA SPA-LDA Test set Pattern recognition (psychology) Principal component analysis Artificial intelligence Variety (universal algebra) business Factor Analysis Statistical Algorithm EXCITATION-EMISSION MATRICES CIENCIAS NATURALES Y EXACTAS Algorithms Food Science |
| Zdroj: | Food chemistry. 184 |
| ISSN: | 1873-7072 |
| Popis: | This paper reports the modeling of excitation-emission matrices for classification of Argentinean white wines according to the grape variety employing chemometric tools for pattern recognition. The discriminative power of the data was first investigated using Principal Component Analysis (PCA) and Parallel Factor Analysis (PARAFAC). The score plots showed strong overlapping between classes. A forty-one samples set was partitioned into training and test sets by the Kennard-Stone algorithm. The algorithms evaluated were SIMCA, N- and U-PLS-DA and SPA-LDA. The fit of the implemented models was assessed by mean of accuracy, sensitivity and specificity. These models were then used to assign the type of grape of the wines corresponding to the twenty samples test set. The best results were obtained for U-PLS-DA and SPA-LDA with 76% and 80% accuracy. Fil: Azcarate, Silvana Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: de Araújo Gomes, Adriano. Universidade Federal da Paraíba; Brasil Fil: Alcaraz, Mirta Raquel. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: Ugulino de Araújo, Mário C.. Universidade Federal da Paraíba; Brasil Fil: Camiña, José Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: Goicoechea, Hector Casimiro. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina |
| Databáze: | OpenAIRE |
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