Table 6. Standard deviation and weighted average recall of the SI experiment results without FS.

	SVM	RF	KNN	MLP	DT
RAVDESS	75.34 ± 2.58	65.78 ± 2.32	69.12 ± 2.20	71.01 ± 2.84	67.41 ± 2.37
SAVEE	63.02 ± 3.21	59.66 ± 3.79	71.81 ± 3.81	65.18 ± 2.05	59.55 ± 2.23
Emo-DB	87.65± 2.56	79. 45± 2.11	75.30 ± 2.19	88.32 ± 2.67	76.27 ± 2.35
IEMODB	61.85 ± 3.20	60.11 ± 4.20	55.47 ± 2.96	63.18 ± 1.62	54.69 ± 3.72