Glass Identification Multi-class Imbalanced data set 1: Description. An imbalanced version of the Glass Identification data set, where there are some classes with a small number of examples while other classes have a large number of examples. 2: Type. Imbalanced 3: Origin. Real world 4: Instances. 214 5: Features. 9 6: Classes. 7 7: Missing values. No 8: IR: 8.44 9: Header. @relation Glass_Identification_Database @attribute RI real [1.51115, 1.53393] @attribute Na real [10.73, 17.38] @attribute Mg real [0.0, 4.49] @attribute Al real [0.29, 3.5] @attribute Si real [69.81, 75.41] @attribute K real [0.0, 6.21] @attribute Ca real [5.43, 16.19] @attribute Ba real [0.0, 3.15] @attribute Fe real [0.0, 0.51] @attribute typeGlass {1, 2, 3, 4, 5, 6, 7} @inputs RI, Na, Mg, Al, Si, K, Ca, Ba, Fe @outputs typeGlass