[OSM-dev] phonetic gazateer, would be cool feature for nominatim

Lars Francke lars.francke at gmail.com
Fri Jan 15 00:37:33 GMT 2010


> I'd love to do something like this but have so far been unable to find
> a suggest / phonetic algorithm that scales to 5.4 million
> words/phrases across more than a hundered languages.  The geocoder you
> mention doesn't seem to do street level - which simplifies the problem
> by at least a couple of orders of magnitude.
>
> If someone can provide an algorithm I'm even happy to code it but so
> far I've had no luck in finding any way to do this.

Lucene uses Double Metaphone[1] (amongst others) and it works really
nice across multiple languages. Certainly the best I've seen so far
and the one OSMdoc is using in the next version.

Hope that helps.

Lars

[1] http://en.wikipedia.org/wiki/Double_Metaphone




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