A set data structure with approximate searching

Latest on Hackage:0.3.1

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BSD3 licensed by Josef Svenningsson
This is a module I hacked together quickly after having read the following
blog post:

I thought the data structure sounded cool so I thought it would be an
interesting excerise to implement it.

BK-trees can apparently perform very good in some circumstances. The
paper "Fast Approximate String Matching in a Dictionary" (Baeza-Yates,
Navarro 1998) recommends them over other structures for doing
approximate search.

The original paper can be found here:

Henning G√ľnter <h.guenther@tu-bs.de> generously supplied two algorithms for
computing the levenshtein edit distance. The better one of the two is used in
the list instance for the Metric class.
Depends on 3 packages:
Used by 1 package:
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