Table 1. Number of sequences taken in testing and training sets.

	Training Set							Testing Set
	Positive	Negative						Positive	Negative
		r	sno	sn	t	SINE	ps		r	sno	sn	t	SINE	ps
Homo sapiens	584	98	98	98	86	5	250	500	97	97	97	86	5	225
Canis familiaris	158	34	34	34	0	0	55	159	33	35	35	0	0	53
Rattus norvegicus	195	43	45	44	0	0	60	196	30	30	30	0	0	84
Drosophila melanogaster	112	12	24	11	25	0	40	113	13	24	11	25	0	40
Caenorhabditis elegans	108	5	25	25	25	0	25	109	5	25	25	25	0	25
Mus musculus	348	75	75	75	0	0	123	348	75	75	75	0	0	123

^*ps- pseudohairpin sequences from mRNAs, r– rRNA sequences, sno- snoRNA sequences, sn- snRNA sequences, t- tRNA sequences.

All possible sources of redundancy were eliminated while preparing the datasets. The test sets contained never seen before instances.