Table 2. Macro-average values of TPR, PPV, and F1 for each technique on the JAFFE dataset. The best results are highlighted in bold.

Combination	Macro-average
	TPR	PPV	F1
Baseline+SGD	0.6197	0.6143	0.5955
CED+RF	0.5537	0.5622	0.5445
HOG+SGD	0.6546	0.7076	0.6545
Proposed+SGD	0.7187	0.7236	0.7031