Thanks Daniel!
Actually coordinates were just an example. The idea is to be able to define multiple mappings on a property based on parts of a property instance value.
You are doing a great work already and this was not to push you into this direction, just to avoid work duplication.
This has not to do with mapping Wikidata to RDF directly but converting it to other vocabularies. In many cases something like a owl:equivalent Property is enough, sometimes something like the formatURL property is needed and in cases like the coordinates more advanced processing is required.
It would be great if all this could be stored directly in Wikidata but I guess an import would be easy once you can.
Cheers,
Dimitris
Sent from my mobile
Am 04.12.2014 10:51, schrieb Dimitris Kontokostas:
> Hi,
>
> Great work! We are working on something similar and what you've done cover's
> most of our use cases.
> What would be further useful is to be able to break down properties by
> processing the values.
> For example P625 [1] cannot be easily mapped to another rdf:property since some
> processing would be needed to link it to georss:point (x,y), geo:lat (x) &
> geo:lon (y).
>
> Is something like this an already future task?
A full RDF mapping is on the reoadmap, and would include an RDF representation
of geo-coordinate values. Note however that the mapping is not as steight
forward as you might expect, since it's not just long+lat, it would also include
a precision number and a reference globe (we also have coordinates for the Moon,
Mars, Europa, etc).
Also, while we recognize that the RDF mapping is important, it's not as urgent
as some other tasks, like ciritcal performance improvements or support for units
of measurement.
What I do not quite understand is how mapping a datatype to RDF is related to
statements on properties. The datatype of a property is not defiend by a
statement, but by a separate plain field, and it has been there for years...
-- daniel
--
Daniel Kinzler
Senior Software Developer
Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.
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