Multiclass Classification of Cardiac Arrhythmia Using Improved Feature Selection and SVM Invariants

Table 3

Performance comparison of feature selection methods.

Feature selection method	Number of selected features	Accuracy (%)	Kappa statistics	RMSE
PCA	79	76.67	0.67	0.18
IGFS	23	68.89	0.55	0.20
Correlation based selection	91	60.00	0.45	0.22
Wrapper method	94	81.11	0.72	0.17