We conduct experiments on letter based 1:1 substitution ciphers, the homophonic substitution cipher Zodiac-408, and word based 1:1 substitution ciphers.
given a set of symbols V eval with unigram counts N (v) for v ∈ V eval , and the total amount of running symbols the SER can be seen as a weighted form of the MER, emphasizing errors for frequent words.