Table 2.

Performance of the classifier (recognition ratio) without and with re-training of the classification algorithm

Grip type(s) identified and controlled (plus rest)	Little, pinch, palmar	Little, palmar	Little, pinch	Palmar, pinch	Little	Palmar	Pinch
No Retraining	0.72	0.86	0.84	0.8	0.9	0.76	0.9
Retraining	0.85	0.92	0.9	0.87	0.93	0.95	1

In case of "re-training" the parameters of the classifier were selected for each day using data recorded in that specific day for the training. In case of "no training", the definition of the parameters happened only for the first day.