Table 2. CE for studied combinations of search radius and classifiers.

k-Nearest Neighbor	Search Radius
	1.0 Å	1.5 Å	2.0 Å	2.5 Å	3.0 Å
1	0.56	0.53	0.45	0.43	0.56
3	0.58	0.53	0.51	0.42	0.53
4	0.78	0.70	0.66	0.66	0.65
5	0.78	0.70	0.66	0.66	0.65