The StringMetrics project implements 7 string metric algorithms: Hamming, Dice, Jaro, Jaro-Winkler, Soundex, Levenshtein, and Damerau-Levenshtein. Metrics compare strings using IMetric interface providing an approximate similarity score from 0 (no match) to 1 (exact match) useful in data cleansing, record linkage, NLP, fraud detection, etc.