TABLE IV. Comparison With State-of-the-Art Algorithms.

Study	Year	Device	#PD	#sensors	#raters	r	RMSE	ICC
[20]	2012	IMU	42	5	3	0.79	0.46	–
[14]	2015	IMU	34	3	3	0.79	–	–
[21]	2015	Smartphone	14	1		0.5	–	–
[22]	2018	Smartphone	44	1		–	–	0.88
[18]	2019	IMU	19	2	3	0.83	0.53	0.89
[23]	2019	IMU	50	2	2	n.r.	n.r.	n.r.
Proposed	2019	Smartphone	93	1	4	0.92	0.42	0.88

Dedicated Application-Performed Evaluation. Values not Explicitly Reported Within the Text.