fsharp/fsharpx — pull request #114 by pocketberserker (2012-10-29 02:00:40+00:00)
Title: BK-tree

A BK-tree is a metric tree. Ported from Haskell's bktrees.

See

* http://en.wikipedia.org/wiki/BK-tree
* http://hackage.haskell.org/packages/archive/bktrees/latest/doc/html/src/Data-Set-BKTree.html
* https://github.com/scalaz/scalaz/blob/0759b85edac5ff96bfe4d005c4b53721d8e859cb/core/src/main/scala/scalaz/BKTree.scala