[OSM-talk] Ground truth for non-physical objects

Christoph Hormann osm at imagico.de
Tue Dec 11 10:51:18 UTC 2018


On Tuesday 11 December 2018, Frederik Ramm wrote:
>
> Also, I think you are too fast in discounting the verifiability of
> boundaries. Even in the absence of actual marked lines, fences, or
> walls, you will often find the "reflections" that you speak of if you
> look a bit closer: Which government do I pay my taxes to? Which
> police department is responsible for my area? Which local authority
> do I get my food stamps from, whatever.

Indeed.

Note i have explained to Tomas in length the meaning of the concept of 
verifiability for not directly physically manifested statements in

http://blog.imagico.de/verifiability-and-the-wikipediarization-of-openstreetmap/#comments

Using the example of a bus stop without signs or shelter i wrote:

> A bus stop, even one without a sign or shelter, can be verified by
> observing that a bus regularly stops at the location. There is
> nothing in the concept of independent verifiability that limits its
> application to physical objects.
>
> Ultimately most verifiable cultural geography features are related to
> human activities and can be verified by either observing these human
> activities themselves or physical effects of these activities.

-- 
Christoph Hormann
http://www.imagico.de/



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