Minority Class with Shape as Clover (examples = 800, disturbance ratio = 50%, IR = 7) data set 1: Description. This is an artificial data set with 2 classes (the minority and the majority class) and 800 examples randomly and uniformly distributed in the two-dimensional space (both attributes were real-valued). The minority class resembles a flower with elliptic petals. The borders of sub-regions in the minority class are disturbed increasing the ratio of borderline examples from the minority class subregions (the disturbance ratio) in 50%. 2: Type. Imbalanced 3: Origin. Laboratory 4: Instances. 800 5: Features. 2 6: Classes. 2 7: Missing values. No 8: IR: 7 9: Header. @relation 04clover5z-800-7-50-BI @attribute dim1 real [-573.0, 533.0] @attribute dim2 real [-413.0, 413.0] @attribute class {0, 1} @inputs dim1, dim2 @outputs class