Need to identify the same people based on their (misspelled) names

hello
we have a table with persons and their name (first name and last name in 1 field) ;
the names are often mispelled, so some string comparison is required;
can you advise what the best approach would be to uniquely identify the same people?
so far i have only found this functions :utl_match.jaro_winkler_similarity and SOUNDEX
is there anything else 'out of box' i could make use of to implement the above?
i appreciate any tips
thanks very much
rgds

UTL_MATCH (either the Jaro-Winkler or the edit distance functions) would generally be preferred. SOUNDEX is a less sophisticated algorithm.
In the general case, however, doing this sort of thing yourself is extremely difficult. There are commercial products out there that just help you do fuzzy matching on names. If you're going to build something yourself, you're likely going to spend a large amount of time trying to fine-tune the algorithm to try to balance type 1 (false positive, you match names that you shouldn't) and type 2 errors (false negative, you fail to match names that you should). To do it well will require a rather large number of meetings with users trying to figure out the appropriate balance of errors in your particular environment.
Justin

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