Maybe it is worth pointing out that algorithms like Levenshtein & Longest Common Subsequence; and modules that implement them (like String::Approx) are entirely useless to genomists.
They don't care about the "score"; only, is it there or not. And doing all the O(N2) or worse, work that those modules do to calculate their scores in order to derive a simple boolean answer is just way too costly.
When they usually are doing 10s of thousands of (say) 50/4 matches against thousands of sequences, each containing millions of codons; using those types of fuzzy-match algorithms means runtimes measured in months or years.
There are much faster ways of doing fuzzy matching when all you need is a yes/no answer.
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