Hi Scott,
thanks for your detailed reply. I recognize I wasn't clear at all in my
original request.
First of all, my issue does not deal at all with TBC (which I like very
much) or with rule execution, but only with an RDF modelling choice.
Let's say I have some data that define people:
my:Person1 a my:Person.
my:Person2 a my:Person.
Then I define the query to get all instances of the class my:Person:
my:QueryToGetAllPersons a sp:Select ;
sp:text "select ?x where {?x a my:Person} "^^xsd:string ;
# ...rest of the query definition using SPIN
.
If I run the query my:QueryToGetAllPersons on my data, I'll get my:Person1
and my:Person2 as results.
I'd like to model this "relationship" in RDF, like:
my:QueryToGetAllPersons my:hasResult my:Person1, my:Person2 .
I'm looking for a potentially-existing definition of the "my:hasResult"
predicate.
For example, I noticed that SPIN vocabulary defines the sp:resultNodes
predicates for Describe queries as "Contains the result nodes (URI
resources or Variables) of a Describe query".
I'm looking for something similar for Select queries.
Thanks a lot again for your valuable time,
Irene
2012/10/30 Scott Henninger <[email protected]>
> Irene, I'm not entirely clear what you mean by linking a query to
> results. If by this you mean that you have CONSTRUCTed some triples
> and want the query to be associated with this query, you could insert
> a a reference to the query in the SPIN rule itself. Suppose you have
> a property named my:createdBy that is to point to the rule and the
> rule is defined in my:ClassX. Then this example rule would include a
> reference for the rule in the constructed triple.
>
> CONSTRUCT
> { my:rscA a my:SomeClass .
> my:rscA my:createdBy ?rule .
> }
> WHERE
> { my:ClassX spin:rule ?rule .
> }
>
> One could even use RDF reification to specify the rule that created a
> triple. But if this is the use case you seek, then couldn't you use
> Explain inference? This appears both in the Inferences View after
> running inferences and in the Form View for the inferred data (click
> the menu triangle to the right of the text box). This will point you
> to the rule that created the triple.
>
> -- Scott
>
> On Oct 30, 3:41 am, Irene Celino <[email protected]> wrote:
> > Dear all,
> > I've always loved the way the SPIN vocabulary can be used to "model" and
> > store SPARQL queries together with RDF data.
> > Now I'm facing the need to link a SPARQL SELECT query "object" - modelled
> > with SPIN - to its results, which are again RDF resources.
> >
> > I was wondering if anybody else has ever felt the same need and, in case,
> > if anybody has created/defined an RDF property to link queries and their
> > respective results.
> > (Of course I can model it on my own, I was just curious if this happened
> > before).
> >
> > Thanks in advance,
> > Irene
> >
> > --
> >
> > " If you understand what you're doing,
> > you're not learning anything. "
>
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