Dataset was taken from https://archive.ics.uci.edu/ml/datasets/wine+quality, originally used in «Modeling wine preferences by data mining from physicochemical properties» by Paulo Cortez a, António Cerdeira , Fernando Almeida , Telmo Matos , José Reis. (https://www.sciencedirect.com/science/article/abs/pii/S0167923609001377?via%3Dihub)