Assignations matches between SpolDB4 and the different distance methods on whole SpolDB4 database (n = 1937 SIT). References are those described in Table 1. Assignations were performed according to the reference for which the distance was the lowest. The patterns for which the most similar reference is the same as that indicated by its SpolDB4 assignations, were scored as "Correct". Note that "Domain Walls" and "Deletions" have equally high values of assignations agreeing with the expert classification. When the method identified two identically similar references for a pattern, this pattern was scored as Unassigned and described as Ambiguous assignation. Ambiguity was the lowest with "Domain Walls" method.