levenshtein-distance | 易学教程

How to add levenshtein function in mysql?

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问题 I got the code for levenshtein distance for mysql form \"http://kristiannissen.wordpress.com/2010/07/08/mysql-levenshtein/\" but, how to add that function in mysql? I am using xampp and i need it for search in php. 回答1: I have connected to my MySQL server and simply executed this statement in MySQL Workbench, and it simply worked - I now have new function levenshtein() . For example, this works as expected: SELECT levenshtein('abcde', 'abced') 2 回答2: DELIMITER $$ CREATE FUNCTION levenshtein(

Levenshtein Distance in VBA [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I have excel sheet with data which I want to get Levenshtein Distance between them. I already tried to export as text, read in from script (php), run Levenshtein (calculate Levenshtein Distance), save it to excel again. But I am looking for a way to programatically calculate a Levenshtein Distance in VBA. How

Getting the closest string match

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问题 I need a way to compare multiple strings to a test string and return the string that closely resembles it: TEST STRING: THE BROWN FOX JUMPED OVER THE RED COW CHOICE A : THE RED COW JUMPED OVER THE GREEN CHICKEN CHOICE B : THE RED COW JUMPED OVER THE RED COW CHOICE C : THE RED FOX JUMPED OVER THE BROWN COW (If I did this correctly) The closest string to the \"TEST STRING\" should be \"CHOICE C\". What is the easiest way to do this? I plan on implementing this into multiple languages including

Levenshtein distance in T-SQL

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问题 I am interested in algorithm in T-SQL calculating Levenshtein distance. 回答1: I implemented the standard Levenshtein edit distance function in TSQL with several optimizations that improves the speed over the other versions I'm aware of. In cases where the two strings have characters in common at their start (shared prefix), characters in common at their end (shared suffix), and when the strings are large and a max edit distance is provided, the improvement in speed is significant. For example,

How to add levenshtein function in mysql?

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I got the code for levenshtein distance for mysql form "http://kristiannissen.wordpress.com/2010/07/08/mysql-levenshtein/" but, how to add that function in mysql? I am using xampp and i need it for search in php. I have connected to my MySQL server and simply executed this statement in MySQL Workbench , and it simply worked - I now have new function levenshtein() . For example, this works as expected: SELECT levenshtein('abcde', 'abced') 2 KEYAN TECH DELIMITER $$ CREATE FUNCTION levenshtein( s1 VARCHAR(255), s2 VARCHAR(255) ) RETURNS INT DETERMINISTIC BEGIN DECLARE s1_len, s2_len, i, j, c, c