White Wine Quality (Imbalanced: 9 vs 4) data set 1: Description. An imbalanced version of the White Wine Quality data set, where the possitive examples belong to the class 9 and the negative examples belong to the class 4. 2: Type. Imbalanced 3: Origin. Laboratory 4: Instances. 168 5: Features. 11 6: Classes. 2 7: Missing values. No 8: IR: 32,6 9: Header. @relation winequality-white-9_vs_4 @attribute FixedAcidity real [3.8, 14.2] @attribute VolatileAcidity real [0.08, 1.1] @attribute CitricAcid real [0.0, 1.66] @attribute ResidualSugar real [0.6, 65.8] @attribute Chlorides real [0.009, 0.346] @attribute FreeSulfurDioxide real [2.0, 289.0] @attribute TotalSulfurDioxide real [9.0, 440.0] @attribute Density real [0.98711, 1.03898] @attribute PH real [2.72, 3.82] @attribute Sulphates real [0.22, 1.08] @attribute Alcohol real [8.0, 14.2] @attribute Class {positive, negative} @inputs FixedAcidity, VolatileAcidity, CitricAcid, ResidualSugar, Chlorides, FreeSulfurDioxide, TotalSulfurDioxide, Density, PH, Sulphates, Alcohol @outputs Class