 In DwAyNE versus DuANE the matching letters are already in the same order D-A-N-E, so no transpositions are needed.Jaro–Winkler similarity uses a prefix scale formula_1 which gives more favorable ratings to strings that match from the beginning for a set prefix length formula_2.Given two strings formula_4 and formula_5, their Jaro–Winkler similarity formula_21 is