Table II. Confusion Matrix for Static State Derived From Fusion-Based SVM Classifier in Four Defined Phases.

Pha. 1	W	SA	SD	RA	RD	Targeted Classes	Pha.2	W	SA	SD	RA	RD
W	97.55	0.06	0	0.04	0.42		W	99.05	0.05	0	0.05	0.56
SA	0.30	99.88	0	0.08	0		SA	0.20	99.95	0	0.41	0
SD	0.09	0	99.61	0	0.03		SD	0	0	100	0	0
RA	0.70	0	0.39	99.87	0.03		RA	0.31	0	0	99.54	0
RD	1.36	0.06	0	0	99.52		RD	0.44	0	0	0	99.44
Estimated Classes							Estimated Classes
Pha. 3	W	SA	SD	RA	RD	Targeted Classes	Pha.4	W	SA	SD	RA	RD
W	97.81	0.26	0	0.13	0.01		W	91.79	0.05	0.62	2.92	1.71
SA	0.60	99.74	0	0.12	0		SA	1.30	99.49	0	0.88	1.08
SD	0.02	0	99.33	0.12	0		SD	2.46	0.19	98.48	0.24	0.75
RA	0.48	0	0.67	99.55	0.37		RA	2.28	0.10	0.49	93.44	0.88
RD	1.08	0	0	0.08	99.62		RD	2.17	0.17	0.40	2.53	95.57

Note: W, SA, RA, SD, and RD denote level walking, stair ascent, ramp ascent, stair descent, and ramp descent, respectively.