Table 3.

Result of evaluating new families in miRBase17

Result	Correctly clustered families	Correctly clustered members	Correctly clustered new miRNAs belonged to existing families
Before feature selection	9	34	447
After feature selection	8	37	435

After selecting 140 features with Isomap, the number of correctly clustered miRNAs that belonged to these new families increases from 34 to 37, while the number of correctly clustered new families decreases from 9 to 8.