Table 6.

The performance accuracy in percentage while using the MAHNOB reference database for training and data from our experiment for testing (without calibration model).

Subject	KNN	NB	ANN	SVM	CNN
Subject1	30.54%	26.43%	31.21%	14.31%	58.76%
Subject2	44.15%	22.23%	30.76%	20.87%	60%
Subject3	32.25%	13.15%	34.89%	25.90%	54.38%
Subject4	29.64%	19.22%	28.33%	20.33%	57.5%
Subject5	29.90%	25.21%	12.85%	22.58%	59.38%
Subject6	27.45%	10.89%	25.07%	17.32%	53.13%
All Subjects	32.33%	19.53%	27.18%	20.22%	57.19%