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Re: Shapes - sub-classes / sub-properties

From: Jose Emilio Labra Gayo <jelabra@gmail.com>
Date: Wed, 16 Jul 2014 16:12:07 +0200
Message-ID: <CAJadXXLJ0fxznd4M8_zxcfToBC8Qn+LQ4kF5z0YG2r_biyy_hg@mail.gmail.com>
To: Dimitris Kontokostas <kontokostas@informatik.uni-leipzig.de>
Cc: "public-rdf-sha." <public-rdf-shapes@w3.org>
If I understand your question, I think what you are asking is out of the
current ShEx scope but it can be handled by other tools or it could be
added to ShEx processors also.

I mean, ShEx just checks the shape of an RDF graph...that graph can be the
original graph or it can be the result of applying a reasoner to the
original graph, in which case, it would check the original graph plus the
inferred triples.

An implementation of ShEx could do RDF Schema or OWL inference before
applying ShEx so it could check the shape of the inferred graph instead of
the original one. At this moment, I didn't incorporate it in Shexcala but
it would not be difficult to add a flag to do it.

Best regards, Jose Labra

On Wed, Jul 16, 2014 at 3:38 PM, Dimitris Kontokostas <
kontokostas@informatik.uni-leipzig.de> wrote:

> Hi all,
> I noticed that at the moment you do not handle sub-classes &
> sub-properties.
> In a previous thread you mentioned that ShEx want to stand somewhere like
> one step above syntactic validation so is this something out of the ShEx
> scope?
> This can be easily achieved with SPARQL1.1 and property paths - when the
> shape is evaluated in SPARQL (to be clear).
> However, it needs the schema to get the relations.
> Ideally this could be enabled by default in ShEx and a special directive
> could point to the schema(s)
> Or a special notation could mark if we want to match strictly <Issue> or
> any subclass
> such as: <CodingIssue> a owl:Class; rdfs:subClassOf <Issue> .
> Any thoughts, comments on this?
> Best,
> Dimtiris
> --
> Dimitris Kontokostas
> Department of Computer Science, University of Leipzig
> Research Group: http://aksw.org
> Homepage:http://aksw.org/DimitrisKontokostas

Saludos, Labra
Received on Wednesday, 16 July 2014 14:12:54 UTC

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