[OSM-talk] Fixing wiki* -> brand:wiki*

Yuri Astrakhan yuriastrakhan at gmail.com
Wed Sep 27 18:51:13 UTC 2017

Yves, see above - I listed 3 problems that I would like to solve. Do you
agree with them?
-- Dr. Yuri :)

On Wed, Sep 27, 2017 at 2:44 PM, Yves <yvecai at gmail.com> wrote:

> I add a look at http://wiki.openstreetmap.org/wiki/Key:brand:wikidata
> Wow.
> So, this tag is about adding an external reference that explains what the
> tag is? Really? This is not a joke?
> OSM is sick, please somebody call a doctor.
> Yves
On Wed, Sep 27, 2017 at 12:14 PM, Yuri Astrakhan <yuriastrakhan at gmail.com>

> I think we should re-start with the definition of the problems we are
> (hopefully) trying to solve, or else we might end up too far in the
> existential realm, which is fun to discuss, but should be left for another
> thread.
> * Problem #1:  In my analysis of OSM data, wikipedia tags quickly go stale
> because they use Wikipedia page titles, and titles are constantly renamed,
> deleted, and what's worse - old names are reused for new meanings.  This is
> a fundamental problem with all Wikipedia tags, such as wikipedia,
> brand:wikipedia, operator:wikipedia, etc, that needs solving. The solution
> does not need to be perfect, it just needs to be better than what we have.
> * Problem #2: the *meaning* of the "wikipedia" tag is ambiguous, and
> therefor cannot be processed easily. The top three meanings I have seen are:
>   a) This WP article is about this OSM feature (a so called 1:1 match,
> e.g. city, famous building, ...)
>   b) This WP article is about some aspect of this OSM feature, like its
> brand, tree species, or subject of the sculpture
>   c) Only a part of this WP article is about this OSM feature, e.g. a WP
> list of museums in the area contains description of this museum.
> * Problem #3: data consumers need cleaner, more machine-processable data.
> The text label is much more error prone than an ID:  McDonalds vs mcdonalds
> vs McDonald's vs ..., so having "brand=mcdonalds" results in many errors.
> Note that just because OSM default map skin may handle some of them
> correctly, each data consumer has to re-implement that logic, so the more
> ambiguous something is, the more likely it will result in errors and data
> omissions.
> The brand:wikidata discussion is about #1, #2b, and #3.
> Are we in agreement that these are problems, or do you think none of them
> need solving?
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