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Subject: Re: [boost] [gsoc 2013] Approximate string matching
From: Jan Strnad (hanny.strnad_at_[hidden])
Date: 2013-04-29 07:18:52

Dne 29.4.2013 03:07, Erik Erlandson napsal(a):
> I have been wondering if these distance functions should be specifically part of string algorithms, or more general algorithms.
> For example, edit distance is really a function on any two sequences, not just sequences of characters. Rather like std::sort() is an algorithm that can be applied to a sequence of any kind of object.

Well, I depends on the distance itself. Hamming, Levenstein and their
relatives can be used with any kind of object (as long as it implements
proper == operator).

To compute Delta and Gamma distances I must be able to compute distance
between two non-equal objects. This is easy for characters, but may not
be so easy for "regular" objects.

I'm not sure about Jaro and Jaro-Winkler distances right now, but I
believe it is the same case as Hamming distance -- generalization should
be possible.

Hope this answers your question.

Jan Strnad

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