Table 2.

Performance (%) of the ensemble tree classification in lying-posture detection for nine different body locations on the Class-Act dataset using leave-one-subject-out (LOSO) validation.

Location	Accuracy	Balanced Accuracy	${\mathit{F}}_1$ Score
Left Thigh	94.5± 6.9	91.3 ± 10.3	90.7 ± 11.8
Right Thigh	96.2 ± 8.1	94.4 ± 12.0	93.5 ± 14.4
Left Ankle	94.9 ± 8.5	92.1 ± 12.8	91.4 ± 15.6
Right Ankle	89.8 ± 13.5	82.9 ± 19.9	82.8 ± 22.7
Chest	96.2 ± 9.1	93.6 ± 13.7	93.6 ± 16.2
Left Arm	78.6 ± 11.7	62.9 ± 15.1	60.9 ± 16.6
Right Arm	89.5 ± 12.1	84.0 ± 18.3	81.6 ± 21.7
Left Wrist	78.6 ± 12.5	67.1 ± 19.1	64.1 ± 21.7
Right Wrist	80.7 ± 14.1	79.7 ± 21.3	67.9 ± 23.8