Fig. 2From: Mirnacle: machine learning with SMOTE and random forest for improving selectivity in pre-miRNA ab initio predictionIllustration of the incremental approach performed in the base pairing matrix analysis. a A long exact stem (in blue) is identified (steps shown in Fig. 1 b/c). b The exact stem is then extended to a non-exact stem (Fig. 1 d/e, here in green and blue) that, in turn, is the basis to build a complete hairpin (procedure represented in Fig. 1 f/g)Back to article page