I disagree that this has been only negligence. There are people that
believe that constraining the schema is a good thing, and there are people
that believe that reusing more freely properties across multiple classes is
a good thing. It's a schema driven versus data driven approach.
But since the latter group can just ignore the constraints, I don't see
harm in doing it.
On Mar 21, 2014 1:40 AM, "Kuys, Gerard" <[email protected]> wrote:
> Hi,
>
> In my opinion, the main flaw - indeed, I agree completely with Jona - is
> that no domain is defined for a huge number of properties. So, let us all
> add a domain definition for a property whenever we see one missing!
>
> Regards,
>
> Gerard
> ------------------------------
> *Van:* Jona Christopher Sahnwaldt [[email protected]]
> *Verzonden:* vrijdag 21 maart 2014 0:11
> *Aan:* [email protected]
> *CC:* dbpedia-discussion
> *Onderwerp:* Re: [Dbpedia-discussion] DBpedia ontology - predicate
> constraints
>
>
> On Mar 19, 2014 7:24 PM, "[email protected]" <[email protected]> wrote:
> >
> > Dear DBpedia creators,
> >
> > I am wondering about two issues connected with the properties extracted
> from the infoboxes and mapped to DBpedia ontology predicates.
> > The first one is the absence in some of the predicates' definitions
> domains and ranges - e.g. [1], [2]. Shall I assume that I should consult
> schema.org (which doesn't have the full definitions BTW) in order to
> check the requirements?
> > The second observation is connected with the fact, that many of the
> extracted properties are not compatible with the constraints. E.g. [3] Mens
> (band) has a hometown property [4], which according to its definition [5]
> has a domain restricted to People.
> >
> > Are there any ongoing efforts to fix these issues? How could I help with
> them (e.g. by providing the appropriate domain/range definitions)?
>
> Are you aware of the DBpedia mappings wiki? Maybe that's a dumb question.
> Anyway, once you have a user account, you can add the domain/range here:
> http://mappings.dbpedia.org/index.php/OntologyProperty:Genre
> and fix the domain (maybe change it from Person to its superclass Agent?)
> here:
> http://mappings.dbpedia.org/index.php/OntologyProperty:Hometown
>
> JC
>
> >
> > Kind regards,
> > Aleksander Pohl
> >
> >
> >
> > [1] http://dbpedia.org/ontology/genre
> > [2] http://dbpedia.org/ontology/director
> > [3] http://en.wikipedia.org/wiki/Manes_%28band%29
> > [4] http://dbpedia.org/page/Manes_%28band%29
> > [5] http://dbpedia.org/ontology/hometown
> >
> >
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