Position-Based Feature Selection for Body Sensors regarding Daily Living Activity Recognition

Table 4

Number of selected features and accuracy rates depending on the sensor positions and feature selection methods.

Number	Sensor position	Feature selection method	Number of selected features	Accuracy
1	Ankle	SFFS	56	91.46%
		Relief-F	32	93.16%
		Laplacian Score	29	96.85%
2	Chest	SFFS	87	95.62%
		Relief-F	77	95.11%
		Laplacian Score	36	95.62%
3	Hip	SFFS	32	96.08%
		Relief-F	52	95.01%
		Laplacian Score	29	96.91%
4	Wrist	SFFS	124	91.60%
		Relief-F	73	92.75%
		Laplacian Score	44	95.24%