Levenshtein Distance

A metric that measures the minimum number of single-character edits (insertions, deletions, and substitutions) needed to transform one string into another. In accessibility research, Levenshtein distance is used to quantify how much users modify AI-generated or existing text, such as measuring the extent of edits made to audio descriptions. Higher Levenshtein distances indicate more substantial revisions, providing an objective measure of how much human refinement AI-generated content requires.