[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-11-23 Thread mkroetzsch
mkroetzsch added a comment.

In https://phabricator.wikimedia.org/T99820#1820662, @daniel wrote:

> Looking at the link, it seems to me we'd (trivially) meet these requirements.


Yes, that's what I meant. :-)

> But I'm not sure about the fine details, e.g. regarding the version IRI. But 
> if you are sure we are meeting the formal requirements, fine with me.

The version IRI is an optional aspect that we can include if we have a good one 
(I guess we might). We should give an ontology IRI and say that it is of type 
owl:ontology. Other bits of information about this ontology can be added, but 
there are not many requirements there. There is also not so much said in the 
standard about how to version ontologies in general, so this is something left 
to us.

> We should then probably explicitly state that the dump is an ontology, 
> though...

Not sure on which level you mean this. In RDF or in the user documentation? I 
thought that this discussion was about stating this in RDF, and this would 
already be "explicit". I am not sure it needs much documentation elsewhere. 
Mainly, we are putting this in to have a place where we can have the license 
(user requested feature) and other meta information (like export date and 
imported version of the Wikibase ontology). I agree that we should mention 
these features in the documentation.


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[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-11-23 Thread gerritbot
gerritbot added a comment.

Change 246130 merged by jenkins-bot:
Add importing OWL ontology

https://gerrit.wikimedia.org/r/246130


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[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-11-20 Thread daniel
daniel added a comment.

@mkroetzsch Looking at the link, it seems to me we'd (trivially) meet these 
requirements. But I'm not sure about the fine details, e.g. regarding the 
version IRI. But if you are sure we are meeting the formal requirements, fine 
with me. We should then probably explicitly state that the dump is an ontology, 
though...


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[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-11-19 Thread daniel
daniel added a comment.

Copy of the question I asked on the patch:

> It seems like owl:imports requires an ontology as its subject. Is it correct 
> to claim that the dump is an ontology?

...and if we consider our data dump to be an ontology, then what //isn't// an 
ontology?


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[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-11-19 Thread Smalyshev
Smalyshev added a comment.

Pretty much everything is, as I understand - "ontology" is the synonym for 
"graph" in OWL, so every OWL data set is an ontology, pretty much. But if you 
really feel uncomfortable with that one, I can drop the ontology part and only 
leave the OWL part.


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[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-11-19 Thread mkroetzsch
mkroetzsch added a comment.

> ...and if we consider our data dump to be an ontology, then what isn't an 
> ontology?

The word "ontology" has different meanings in different contexts. Here, we only 
mean the notion of "ontology" meant by the term owl:ontology as used in the W3C 
OWL standard. As Stas says, this is essentially nothing more than a OWL 
collection of OWL-compatible statements (called "OWL axioms" in the standard). 
No deeper meaning involved. See  http://www.w3.org/TR/owl2-syntax/#Ontologies 
for a definition.


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[Wikidata-bugs] [Maniphest] [Commented On] T99820: [Task] Add reference to ontology.owl to the RDF output

2015-10-13 Thread gerritbot
gerritbot added a subscriber: gerritbot.
gerritbot added a comment.

Change 246130 had a related patch set uploaded (by Smalyshev):
Add importing OWL ontology

https://gerrit.wikimedia.org/r/246130


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