Classification of BCI Users Based on Cognition

Table 4

Silhouette scores.

Tasks	Cluster numbers	Silhouette scores	Percentage
P 300/1	2	0.65	82.50%
	3	0.57	78.50%
	4	0.64	82%
P 300/2	2	0.60	80%
	3	0.54	77%
	4	0.59	79.50%
SSVEP/1	2	0.78	89%
	3	0.59	79.50%
	4	0.60	80%
SSVEP/2	2	0.59	79.50%
	3	0.58	79%
	4	0.55	77.50%
MI/1	2	0.59	79.50%
	3	0.59	79.50%
	4	0.58	79%
MI/2	2	0.60	80%
	3	0.52	76%
	4	0.60	80%