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Table 3 SVM features to describe stem loops, part 2. These quantities are calculated over the longest symmetrical region of the stem loop, i.e. the longest region without any asymmetrical loop.

From: Identification of clustered microRNAs using an ab initio prediction method

Index Feature description SVM weight
17 Length 0.353
18 Distance from the hairpin loop 0.126
19 Number of nucleotides involved in internal loops 0.041
20/21/22/23 Proportion of A/C/G/U nucleotides 0.082/0.241/0.078/0.059
24/25/26 Proportion of A-U/C-G/G-U base pairs 0.211/0.254/-0.131