[Retracted] Deep Learning and Improved HMM Training Algorithm and Its Analysis in Facial Expression Recognition of Sports Athletes

Table 3

Number of similar facial expression experiments in 4 categories.

	Male		Female		Total
Age	16–22	23–40	16–22	23–40	—
Smile	15	15	10	10	50
Laugh	15	15	10	10
Calm	10	20	5	15
Serious	10	20	5	15