Table 1. Characteristics of the Data Sets Used in This Paper.

				size
groups	name	no. of peptides	no. of sequences	training set	test set	refs
data set 1	ACE	55	3	45	10	(30)
data set 2	bitter tasting	48	2	40	8	(26)
data set 3	HLA	177	9	131	46	(20, 34)