Table 4. Macro-average values of TPR, PPV, and F1 for each method on the CK+ dataset. The best results are highlighted in bold.

Combination	Macro-average
	TPR	PPV	F1
Baseline+SGD	0.8414	0.9031	0.8379
CED+SGD	0.8014	0.8927	0.8204
HOG+ET	0.7851	0.8603	0.8002
Proposed+HGB	0.9184	0.9061	0.9082