The use of data mining to classify Carmenere and Merlot wines from Chile

Autor(es)

da Costa, Nattane Luiza ^[1] ; Garcia Llobodanin, Laura Andrea ^[2] ; Castro, Inar Alves ^[2] ; Barbosa, Rommel ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Goias, Inst Informat, Goiania, Go - Brazil

^[2] Univ Sao Paulo, Fac Pharmaceut Sci, Dept Food & Expt Nutr, LADAF, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: EXPERT SYSTEMS; v. 36, n. 2 APR 5 2019.
• Citações Web of Science: 0

Resumo

The identity of the Carmenere variety was lost in Chile and regarded as a Merlot grape. This grape disappeared in Bordeaux, France, the country of origin of the grape, because of the phylloxera plague. In the present paper, a study on the classification of Chilean Carmenere and Merlot wine samples based on chemical parameters was carried out. A total of 64 samples were analysed, and 20 chemical parameters were determined. Forty-five samples were labelled as Carmenere and 19 samples as Merlot according to the wine label. The samples were preprocessed with sampling algorithms to double the number of Merlot samples to 38 and reduce the Carmenere samples to 38. The dataset was analysed with the data mining techniques support vector machines and correlation-based feature selection. The capability of classifying the samples with all 20 chemical parameters was 86.8% accurate, and when using only the variables a{*}, total anthocyanins, cyan-3-glu, malv-3-acetylglu, peon-3-acetylglu, and vitisin A, which were selected through correlation-based feature selection, accuracy increased to 93.4%. Therefore, wine anthocyanins and the parameter a{*} of wine colour proved useful to discriminate the wines. (AU)

• Processo FAPESP: 10/19845-2 - Efeito da safra nas características químicas e sensoriais e na atividade antioxidante de vinhos jovens sul americanos classificados de acordo com a varietal e a região
• Beneficiário: Inar Castro Erger
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/18765-5 - Efeito da safra nas características químicas e sensoriais e na atividade antioxidante de vinhos jovens Sul Americanos classificados de acordo com a varietal e a região.
• Beneficiário: Laura Andrea García Llobodanin
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado