[Talk-GB] Postcode centroids

Tom Hughes tom at compton.nu
Fri Jan 21 09:58:40 GMT 2011

On 21/01/11 09:51, Kevin Peat wrote:

> I was wondering why you don't see any value in just adding the postcode
> centroids to the map?
> There are probably 25000+ buildings in my area so it isn't feasible for
> me to add them all and their addresses in less than a lifetime whereas
> adding the postcode centroids would surely allow an instant improvement
> in navigation for many users who are used to tapping a postcode into
> their satnavs?

Because postcode centroids are not real - they don't exist so fail the
ground truth rule.

As I understand things the new version of Nominatim that is coming up
will search the OpenData postcode data (and various other postcode
databases for other countries) directly anyway.


Tom Hughes (tom at compton.nu)

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