Hybrid Gradient Descent Grey Wolf Optimizer for Optimal Feature Selection

Figure 26

Box plots of the number of features.

(a) Box plot of feature subset 1: Breast Cancer Wisconsin (Diagnostic)

(b) Box plot of feature subset 2: Breast Cancer Wisconsin (Original)

(c) Box plot of feature subset 3: Statlog (Heart)

(d) Box plot of feature subset 4: SPECT Heart

(e) Box plot of feature subset 5: Heart Disease (Coronary Artery Disease)

(f) Box plot of feature subset 6: Lymphography