Cortez et al. (2009) studied the relation of various chemical properties, such as acidity, on perceived quality of Porteguese vinho verde wines as evaluated by a panel of experts.
The datasets are (../code/white_wine.mat) and (../code/red_wine.mat). Each dataset contains a 1-by-12 cell variable headers which indicates the meaning of the columns of N-by-12 data matrix data, where N is the number data points.
| Variable number | Variable info |
|---|---|
| 1 | fixed acidity |
| 2 | volatile acidity |
| 3 | citric acid |
| 4 | residual sugar |
| 5 | chlorides |
| 6 | free sulfur dioxide |
| 7 | total sulfur dioxide |
| 8 | density |
| 9 | pH |
| 10 | sulphates |
| 11 | alcohol |
| 12 | quality (score between 0 and 10) |
Further information may be found at https://archive.ics.uci.edu/ml/datasets/wine+quality
Multi layer perceptron is used. As a comparison, linear regression is used.