Table 2.

Benchmark datasets commonly used in recent machine learning- and deep learning-based methods.

	# fam.	# seq.	Length	Ref.
RNA STRAND	172	4666	4 ~ 4381	[79]
TORNADO dataset				[24]
TrainSetA	11	3166	10 ~ 734
TestSetA	11	697	10 ~ 768
TrainSetB	22	1094	27 ~ 237
TestSetB	22	430	27 ~ 244
Archive II	10	3975	28 ~ 2968	[80]
RNAStralign	8	30 451	30 ~ 1851	[81]
bpRNA-1m	2600	102 318	2 ~ 4381	[82]
bpRNAnew	1500	5401	33 ~ 489	[50]

# fam.: the number of families. # seq.: the number of sequences.