Towards Driver's State Recognition on Real Driving Conditions

Table 6

Confusion Matrix, Sensitivity (Sens.), and specificity (Spec.) for each class for the classification of normal (N), low fatigue (LF) and high fatigue (HF) classes for the four classifiers and use of physiological, video, and environment features.

SVM					Decision tree
	N	LF	HF		N	LF	HF
N	89.12	12.82	0.08	N	74.14	25.12	1.60
LF	10.88	78.90	3.86	LF	25.76	70.54	4.56
HF	0.00	8.28	96.06	HF	0.74	0.71	93.84
Acc.	0.88			Acc.	0.80
Class	Sens.	Spec.		Class	Sens.	Spec.
N	0.89	0.87		N	0.74	0.74
LF	0.79	0.84		LF	0.71	0.70
HF	0.96	0.92		HF	0.94	0.95
Naive Bayes				Bayes
	N	LF	HF		N	L.F	HF
N	69.54	11.40	0.00	N	75.84	15.06	0.00
LF	28.84	65.12	8.04	LF	23.24	72.86	7.20
HF	1.62	23.48	91.96	HF	0.92	12.08	92.80
Acc.	0.76			Acc.	0.81
Class	Sens.	Spec.		Class	Sens.	Spec.
N	0.70	0.86		N	0.76	0.83
LF	0.65	0.64		LF	0.73	0.71
HF	0.92	0.79		HF	0.94	0.81