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Posted to users@jena.apache.org by Luis Enrique Ramos García <lu...@googlemail.com.INVALID> on 2020/04/21 09:17:04 UTC
subproperty as qualifiers
Dear friends,
I am trying to model a relation between two individuals, in this case two
companies, and the relations is the ownership represented in percentage as
a value of shares. For instance, I could say.
c1 is_Owner_of c2
c2 shares *60 %* of c2
I have done a similar modeling using a class to represent shares, but I
wonder if it could be possible to use a subproperty as qualifier?
I mean to say:
c1 is_Owner_of c2 - and is_Owner_of : share 60
I have tried to perform such modeling, but it has not been possible.
Then, I wonder if it is possible to declare a sub property as a qualifier
in jena?
Luis Ramos
Re: subproperty as qualifiers
Posted by Luis Enrique Ramos García <lu...@googlemail.com.INVALID>.
Hi Andy,
Thanks for your answer, then for next release?
For now, I am following my previous procedure to test if I reach the goal
Luis
El mié., 22 abr. 2020 a las 12:11, Andy Seaborne (<an...@apache.org>)
escribió:
>
>
> On 21/04/2020 10:21, Lorenz Buehmann wrote:
> > What is a "qualifier" in RDF?
> >
> > You should look at the Wikidata data model, they are using such a
> > concept which is basically done via some kind of reification on the
> > statements (triples). Their approach is very thorough, you might reuse
> > it for your data.
> >
> > That said, I'd also point you to RDF* which Andy added quite recently
> > and will be part of next release (@Andy I guess? )
>
> Yes - as an experimental version working for in-memory storage.
>
> Andy
>
> >
> > On 21.04.20 11:17, Luis Enrique Ramos García wrote:
> >> Dear friends,
> >>
> >> I am trying to model a relation between two individuals, in this case
> two
> >> companies, and the relations is the ownership represented in percentage
> as
> >> a value of shares. For instance, I could say.
> >> c1 is_Owner_of c2
> >>
> >> c2 shares *60 %* of c2
> >>
> >> I have done a similar modeling using a class to represent shares, but I
> >> wonder if it could be possible to use a subproperty as qualifier?
> >>
> >> I mean to say:
> >>
> >> c1 is_Owner_of c2 - and is_Owner_of : share 60
> >>
> >>
> >> I have tried to perform such modeling, but it has not been possible.
> >>
> >> Then, I wonder if it is possible to declare a sub property as a
> qualifier
> >> in jena?
> >>
> >>
> >>
> >> Luis Ramos
> >>
>
Re: subproperty as qualifiers
Posted by Andy Seaborne <an...@apache.org>.
On 21/04/2020 10:21, Lorenz Buehmann wrote:
> What is a "qualifier" in RDF?
>
> You should look at the Wikidata data model, they are using such a
> concept which is basically done via some kind of reification on the
> statements (triples). Their approach is very thorough, you might reuse
> it for your data.
>
> That said, I'd also point you to RDF* which Andy added quite recently
> and will be part of next release (@Andy I guess? )
Yes - as an experimental version working for in-memory storage.
Andy
>
> On 21.04.20 11:17, Luis Enrique Ramos García wrote:
>> Dear friends,
>>
>> I am trying to model a relation between two individuals, in this case two
>> companies, and the relations is the ownership represented in percentage as
>> a value of shares. For instance, I could say.
>> c1 is_Owner_of c2
>>
>> c2 shares *60 %* of c2
>>
>> I have done a similar modeling using a class to represent shares, but I
>> wonder if it could be possible to use a subproperty as qualifier?
>>
>> I mean to say:
>>
>> c1 is_Owner_of c2 - and is_Owner_of : share 60
>>
>>
>> I have tried to perform such modeling, but it has not been possible.
>>
>> Then, I wonder if it is possible to declare a sub property as a qualifier
>> in jena?
>>
>>
>>
>> Luis Ramos
>>
Re: subproperty as qualifiers
Posted by Luis Enrique Ramos García <lu...@googlemail.com.INVALID>.
Thank for your answer Lorenz,
I am currently working with wikidata, providing a reasoning layer to it
with jena, and I have been able to model its "qualifiers" with
successful results, however, I was wondering if it could use a
subproperty as qualifier, just as the people of wikidata does.
Thanks a lot
Luis Ramos
El mar., 21 abr. 2020 a las 11:21, Lorenz Buehmann (<
buehmann@informatik.uni-leipzig.de>) escribió:
> What is a "qualifier" in RDF?
>
> You should look at the Wikidata data model, they are using such a
> concept which is basically done via some kind of reification on the
> statements (triples). Their approach is very thorough, you might reuse
> it for your data.
>
> That said, I'd also point you to RDF* which Andy added quite recently
> and will be part of next release (@Andy I guess? )
>
> On 21.04.20 11:17, Luis Enrique Ramos García wrote:
> > Dear friends,
> >
> > I am trying to model a relation between two individuals, in this case two
> > companies, and the relations is the ownership represented in percentage
> as
> > a value of shares. For instance, I could say.
> > c1 is_Owner_of c2
> >
> > c2 shares *60 %* of c2
> >
> > I have done a similar modeling using a class to represent shares, but I
> > wonder if it could be possible to use a subproperty as qualifier?
> >
> > I mean to say:
> >
> > c1 is_Owner_of c2 - and is_Owner_of : share 60
> >
> >
> > I have tried to perform such modeling, but it has not been possible.
> >
> > Then, I wonder if it is possible to declare a sub property as a qualifier
> > in jena?
> >
> >
> >
> > Luis Ramos
> >
>
Re: subproperty as qualifiers
Posted by Lorenz Buehmann <bu...@informatik.uni-leipzig.de>.
What is a "qualifier" in RDF?
You should look at the Wikidata data model, they are using such a
concept which is basically done via some kind of reification on the
statements (triples). Their approach is very thorough, you might reuse
it for your data.
That said, I'd also point you to RDF* which Andy added quite recently
and will be part of next release (@Andy I guess? )
On 21.04.20 11:17, Luis Enrique Ramos García wrote:
> Dear friends,
>
> I am trying to model a relation between two individuals, in this case two
> companies, and the relations is the ownership represented in percentage as
> a value of shares. For instance, I could say.
> c1 is_Owner_of c2
>
> c2 shares *60 %* of c2
>
> I have done a similar modeling using a class to represent shares, but I
> wonder if it could be possible to use a subproperty as qualifier?
>
> I mean to say:
>
> c1 is_Owner_of c2 - and is_Owner_of : share 60
>
>
> I have tried to perform such modeling, but it has not been possible.
>
> Then, I wonder if it is possible to declare a sub property as a qualifier
> in jena?
>
>
>
> Luis Ramos
>