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Re: Fwd: sparql querying on property reified shortcut triples

From: Bob Ferris <zazi@smiy.org>
Date: Fri, 08 Jun 2012 14:56:03 +0200
Message-ID: <4FD1F663.8070403@smiy.org>
To: Rob Stewart <robstewart57@gmail.com>
CC: semantic-web@w3.org
Hi Rob,

I'm subscribed to the swig mailing list. However, I do rarely have time 
for reading it ;) (... so thanks for forwarding this e-mail to me).

For now I can only give you a short answer:

Please have a look at [1]. As it is described in section [2] (nearly in 
the end of this section), you can utilise SPIN [3] for described these 
mapping rules. Please have a look at [5] for the the 'property 
reification' rule and [6] for the complement, the 'shortcut relation' 
rule. Furthermore, you have to fill your reasoning engine with your 
specific property reification definitions, see [7] for example 
definitions for CCO.
So far I'm not aware of any inbuilt implementation of PRV in any common 
triple store/reasoning engine. However, you should be able to add it 
manually in a proper triple store/reasoning engine, e.g., Virtuoso.

I hope that I could help you a bit so far. If you have further 
questions, don't hesitate to ask them.

Cheers,

Bo


[1] http://purl.org/ontology/prv/core#
[2] http://purl.org/ontology/prv/propertyreification.html#sec-for
[3] http://spinrdf.org/
[5] http://purl.org/ontology/prv/rules#PropertyReificationRule
[6] http://purl.org/ontology/prv/rules#ShortcutRelationRule
[7] http://purl.org/ontology/cco/mappings#

On 06/08/2012 02:38 PM, Rob Stewart wrote:
> Hi Bob,
>
> I've emailed the semant-web W3C mailing list regarding property
> reification. If you do not subscribe to that list, then you may be
> interested in my query (you've been helpful to me in the past w.r.t.
> CCO).
>
> Best,
>
> --
> Rob
>
>
> ---------- Forwarded message ----------
> From: Rob Stewart<robstewart57@gmail.com>
> Date: 8 June 2012 12:34
> Subject: sparql querying on property reified shortcut triples
> To: semantic-web@w3.org
>
>
> Hi,
>
> I have a question regarding the inference of shortcut triples using
> RDF property reification. It is a pragmatic one, on the software tools
> that support rule based shortcut property inference.
>
> I'm referring mainly to this page [1]. The N3 rule implementation
> looks nice [2].
>
> On this wiki page, there are no comment on actually how to run these
> rules against reified RDF data.. specifically a list on the rule-based
> engines that'd work well with the N3 example that you give.
>
> Perhaps there is another wiki page elsewhere that describes in
> practical terms how to run these rules against RDF.. or perhaps even
> how to plug these rules into on-the-fly SPARQL querying of some kind.
> It'd be excellent to have such a rules triggered by a SPARQL SELECT
> query that matches on the triples where the shortcut property is
> matched.
>
> Could you perhaps comment on:
> - Rule-based reasoning engines that'd run the rules shown at [2]?
> - Software tools that simplify that process?
> - The feasibility of plugging the rules in [2] into a SPARQL endpoint
> for on-the-fly property shortcut reasoning?
>
>
> [1] - http://www.w3.org/wiki/PropertyReificationVocabulary
> [2] - http://www.w3.org/wiki/PropertyReificationVocabulary#Implementation
>
>
> Best,
>
> --
> Rob Stewart


-- 
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Bob Ferris

website: http://smiy.org/
e-mail:  zazi@smiy.org

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Received on Friday, 8 June 2012 12:56:41 GMT

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