Levenshtein distance composite letters

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I want to ask if anyone will help me, I have a task to use Levenshtein Distance, but distance for some composite letters like SH, DH, ZH, should be as a single letter, Well distances for these letters when used must be 1 not 2 when calculates levenshtein distance.

Posted 16-Apr-15 12:10pm

aras89

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Sascha Lefèvre 16-Apr-15 18:33pm

And how do you know if it's a composite or just two letters that are adjacent by chance? Or can this not happen in your language?

aras89 16-Apr-15 18:46pm

n my Language these letters are always composite letters and do not change during use in different words

PIEBALDconsult 16-Apr-15 18:49pm

Write a custom enumerator and maybe a class/struct that takes that into account.

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Sascha Lefèvre · Accepted Answer · 2015-04-16T12:51:00

Solution 1

There's a very easy solution for this and you don't have to change the Levenshtein-algorithm at all: Before you calculate the distance, replace those composites with a single character that won't appear anywhere else: Control characters. Eg. ASCII 1, 2, 3.

Posted 16-Apr-15 12:51pm

Sascha Lefèvre

Comments

Sergey Alexandrovich Kryukov 16-Apr-15 18:56pm

Come to think about, not a bad idea, my 5.
—SA

Sascha Lefèvre 16-Apr-15 19:02pm

Thank you! :)

aras89 16-Apr-15 18:57pm

Thank you very much for this solution I will try this.

Sascha Lefèvre 16-Apr-15 19:02pm

You're welcome!