Table 3.

Validation and testing results using data from 24 PD subjects.

Tremor Type	Sensor Used	Method Used (Specifications)	Held-Out Testing		Leave-One-Out Testing
			MAE	r (p)	MAE	r (p)
Total rest and action tremor	Wrist and ankle	LSTM	1.33	0.84 (<$1\times {10}^{-4}$)	1.32	0.77 (<$1\times {10}^{-4}$)
Total rest and action tremor	Wrist and ankle	Gradient tree boosting	1.56	0.96 (<$1\times {10}^{-4}$)	1.18	0.93 (<$1\times {10}^{-4}$)
Total rest tremor	Wrist and ankle	Gradient tree boosting	1.20	0.94 (<$1\times {10}^{-4}$)	0.58	0.90 (<$1\times {10}^{-4}$)
Hand rest tremor	Wrist	Gradient tree boosting	0.76	0.91 (<$1\times {10}^{-4}$)	0.41	0.87 (<$1\times {10}^{-4}$)
Foot rest tremor	Ankle	Gradient tree boosting	0.46	0.92 (<$1\times {10}^{-4}$)	0.27	0.89 (<$1\times {10}^{-4}$)
Action tremor	Wrist	Gradient tree boosting	0.41	0.75 (<$1\times {10}^{-4}$)	0.33	0.66 (<$1\times {10}^{-4}$)