Editing Phonetic algorithm (section)

==Algorithms==
Among the best-known phonetic algorithms are:

* [[Soundex]], which was developed to encode surnames for use in censuses. Soundex codes are four-character strings composed of a single letter followed by three numbers.
* [[Daitch–Mokotoff Soundex]], which is a refinement of Soundex designed to better match surnames of Slavic and Germanic origin. Daitch–Mokotoff Soundex codes are strings composed of six numeric digits.
* [[Cologne phonetics]]: This is similar to Soundex, but more suitable for German words.
* [[Metaphone]] and [[Double Metaphone]] which are suitable for use with most English words, not just names. Metaphone algorithms are the basis for many popular [[spell checkers]].
* [[New York State Identification and Intelligence System]] (NYSIIS), which maps similar [[phonemes]] to the same letter. The result is a string that can be pronounced by the reader without decoding.
* [[Match Rating Approach]] developed by Western Airlines in 1977 - this algorithm has an encoding and range comparison technique.
* [[Caverphone]], created to assist in data matching between late 19th century and early 20th century electoral rolls, optimized for accents present in parts of New Zealand.