[Imports] [OSM-talk] amenity=bicycle_repair_station :::: only 18 so far

Bryce Nesbitt bryce2 at obviously.com
Sun Feb 8 17:16:37 UTC 2015


On Sun, Feb 8, 2015 at 8:23 AM, Greg Troxel <gdt at ir.bbn.com> wrote:

>
> 40m seems too close for fuzzy matching, or rather I think you need two
> thresholds.  I would think that you'd want something like 250m to flag
> it as sort-of-matching for human review.


250m is slightly too large, as several campus installations are that close.

The goal is that the OSM mapper is free to move stations up to (threshold)
meters, and
the conflation step will just assume the OSM mapper is correct.  The idea
was that over 40m
would trigger human review to see if the upstream data source needed
correction.  In general, since
we're talking about a feature too small for air photo review, the armchair
mapper has to
trust the local mapper.


Perhaps you could run the conflation script and post the osc for
> review.


There are so few stations in OSM now, there's no interesting result from
the conflation:
the main overlap are stations I added myself to test conflation.  The
conflation is really about maintaining
this data set in the future: keeping a commercial dataset in
synchronization with an open source
dataset.
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