[Talk-GB] Fwd: Adding links to Wikidata (and Wikipedia?)

Archer arch3r at gulli.com
Tue Jun 17 18:03:32 UTC 2014

dito for the list...

---------- Forwarded message ----------
From: Archer <arch3r at gulli.com>
Date: 2014-06-17 15:21 GMT+02:00
Subject: Re: [Talk-GB] Adding links to Wikidata (and Wikipedia?)
To: Andy Mabbett <andy at pigsonthewing.org.uk>

2014-06-17 14:57 GMT+02:00 Andy Mabbett <andy at pigsonthewing.org.uk>:

On 17 June 2014 13:14, Archer <arch3r at gulli.com> wrote:
> > It isn't that easy to add Wikidata ID's with a script. Wikipedia articles
> > often describe more than one object. For example the article of
> Heligoland:
> > http://en.wikipedia.org/wiki/Heligoland
> I don't see why an issue with a Wikipedia article makes it difficult
> to refer to Wikidata.
> > The article describes the island and the municipality. To model this in
> > Wikidata you need two different objects. For the island:
> > https://www.wikidata.org/wiki/Q17043877 and municipality:
> > https://www.wikidata.org/wiki/Q3038
> The former has property instance_of=island
> The latter has instance_of=municipality_of_Germany
> OSM relation 3787052 has tag place=island and is, correctly, already
> tagged wikidata=Q17043877
> There is clearly an equivalence between instance_of=island and place=island
> There is no equivalence between place=island and
> instance_of=municipality_of_Germany
> > I've tried to describe the issue here:
> > http://wiki.openstreetmap.org/wiki/Key:wikidata
> I've moved that to the talk page:
>    https://wiki.openstreetmap.org/wiki/Talk:Key:wikidata
> and will reply there.
> I understood your further post in this manner: you want to take the
Wikipedia link and add with a script or bot the associated Wikidata-ID.
This would add the Wikidata ID Q3038 to both OSM objects place=island and
boundary=administrative of Heligoland because both objects in OSM could
link to the same Wikipedia article. That would be wrong because the ID of
the island is Q17043877.

Wikidata needs much consolidation. For example there existed only one
object for Heligoland in Wikidata before i fixed it. The object in WD
before described the island AND the municipality which is nonsense because
the objects have a different area and so on. That's why I wrote it as one
example on the Wiki-Page thus the mappers don't type in wrong Wikidata ID's.

In Wikidata at the moment there is a big consolidation ongoing because
there are also many duplicate objects. (Wikidata-objects were generated
from Wikipedia-articles. When the Wikipedia articles of different language
versions were not linked with Interwikilinks then there were created
duplicate objects in Wikidata).

In Germany we added the Wikidata-ID's to all administrative boundaries from
AL 4-8: http://forum.openstreetmap.org/viewtopic.php?id=24168&p=1
Here is a map with an overview where the wikidata-Tag is used:
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