Table 3.

Classification of emotions for each participant using kNN

Participants	Accuracy (%)	Specificity (%)	Sensitivity (%)
1	77.5	78.9	76.2
2	75	75	75
3	75	81.2	70.1
4	55	53.5	72.7
5	80	87.5	75
6	70	81.2	64.7
7	82.5	100	74
8	77.5	82.3	73.9
9	65	71.4	61.5
10	65	71.4	61.5
11	67.5	73.3	64
12	85	100	74
13	70	91.6	63.1
14	62.5	60.8	64.7
15	75	85.7	69.2
16	72.5	53.5	58.33
17	75	90.9	65.5
18	82.5	93.3	76
19	77.5	86.6	72
20	85	85	85
Average	72.92	90	74.37