Re: SHACL Rules?

I can also contribute on this, although my time is quite limited atm

On Fri, Dec 18, 2015 at 3:34 PM, Simon Steyskal <simon.steyskal@wu.ac.at>
wrote:

> +1
>
> I would love to work on this.
>
> simon
>
>
> -------- Ursprüngliche Nachricht --------
> Von: Holger Knublauch <holger@topquadrant.com>
> Datum: 18.12.2015 14:31 (GMT+01:00)
> An: public-data-shapes-wg@w3.org
> Betreff: SHACL Rules?
>
> I have a process question. During the meeting it turned out that at
> least three WG members were interested in a SHACL extension to represent
> rules. I believe this is a low hanging fruit, similar to SPIN rules. For
> example
>
> ex:MyShape
>      a sh:Shape ;
>      sh:scopeClass ex:Person ;
>      shr:rule [
>          sh:sparql """
>              CONSTRUCT {
>                  ?this ex:age ?age .
>              }
>              WHERE {
>                  ?this ex:birthYear ?birthYear .
>                  BIND (ex:currentYear() - ?birthYear AS ?age)
>              } """
>      ] .
>
> SHACL already provides all key building blocks, even the concept of
> SPARQL binding and scoping.
>
> I understand the concern that this is potentially outside of the
> charter, and that we don't want to spend precious WG resources on this.
> However, assuming that the interested parties create a separate
> deliverable on this "in their spare time", is there any format in which
> we could publish this (as a note) within the umbrella of the Shapes WG?
> The WG is also discussing Abstract Syntax and Compact Syntax documents
> that appear complementary and optional for implementers.
>
> (To keep it simple we could in the first pass exclude any inter-rule
> dependencies, i.e. not even do fixpoint iteration. We use this a lot for
> data transformations/mapping, where a single pass is sufficient.)
>
> Thanks,
> Holger
>
>
>


-- 
Dimitris Kontokostas
Department of Computer Science, University of Leipzig & DBpedia Association
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Homepage:http://aksw.org/DimitrisKontokostas
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