The use of decision support systems by the wine industry is mainly focused
on the wine production phase. Despite the potential of DM techniques to
predict wine quality based on physicochemical data, their use is rather scarce and mostly considers small datasets. For example, in 1991 the “Wine” dataset
was donated into the UCI repository. The data contain 178 examples with
measurements of 13 chemical constituents (e.g. alcohol, Mg) and the goal is
to classify three cultivars from Italy. This dataset is very easy to discriminate
and has been mainly used as a benchmark for new DM classifiers. In 1997,
a NN fed with 15 input variables (e.g. Zn and Mg levels) was used to predict
six geographic wine origins. The data included 170 samples from Germany
and a 100% predictive rate was reported. In 2001 [30], NNs were used to
classify three sensory attributes (e.g. sweetness) of Californian wine, based
on grape maturity levels and chemical analysis (e.g. titrable acidity). Only
36 examples were used and a 6% error was achieved. Several physicochemical
parameters (e.g. alcohol, density) were used in [20] to characterize 56 samples
of Italian wine. Yet, the authors argued that mapping these parameters with a
sensory taste panel is a very difficult task and instead they used a NN fed with
data taken from an electronic tongue. More recently, mineral characterization
(e.g. Zn and Mg) was used to discriminate 54 samples into two red wine
classes. A probabilistic NN was adopted, attaining 95% accuracy. As a
powerful learning tool, SVM has outperformed NN in several applications,
such as predicting meat preferences. Yet, in the field of wine quality only
one application has been reported, where spectral measurements from 147
bottles were successfully used to predict 3 categories of rice wine age.
The use of decision support systems by the wine industry is mainly focusedon the wine production phase. Despite the potential of DM techniques topredict wine quality based on physicochemical data, their use is rather scarce and mostly considers small datasets. For example, in 1991 the “Wine” datasetwas donated into the UCI repository. The data contain 178 examples withmeasurements of 13 chemical constituents (e.g. alcohol, Mg) and the goal isto classify three cultivars from Italy. This dataset is very easy to discriminateand has been mainly used as a benchmark for new DM classifiers. In 1997,a NN fed with 15 input variables (e.g. Zn and Mg levels) was used to predictsix geographic wine origins. The data included 170 samples from Germanyand a 100% predictive rate was reported. In 2001 [30], NNs were used toclassify three sensory attributes (e.g. sweetness) of Californian wine, basedon grape maturity levels and chemical analysis (e.g. titrable acidity). Only36 examples were used and a 6% error was achieved. Several physicochemicalparameters (e.g. alcohol, density) were used in [20] to characterize 56 samplesof Italian wine. Yet, the authors argued that mapping these parameters with asensory taste panel is a very difficult task and instead they used a NN fed withdata taken from an electronic tongue. More recently, mineral characterization(e.g. Zn and Mg) was used to discriminate 54 samples into two red wineclasses. A probabilistic NN was adopted, attaining 95% accuracy. As apowerful learning tool, SVM has outperformed NN in several applications,such as predicting meat preferences. Yet, in the field of wine quality onlyone application has been reported, where spectral measurements from 147bottles were successfully used to predict 3 categories of rice wine age.
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