Re: The Role of the Ontology

Eric,

Thanks - looking good to me.

Cheers,
      Michael

-- 
Dr. Michael Hausenblas
LiDRC - Linked Data Research Centre
DERI - Digital Enterprise Research Institute
NUIG - National University of Ireland, Galway
Ireland, Europe
Tel. +353 91 495730
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> From: Eric Prud'hommeaux <eric@w3.org>
> Date: Fri, 23 Apr 2010 07:40:34 -0400
> To: Juan Sequeda <juanfederico@gmail.com>
> Subject: Re: The Role of the Ontology
> Resent-From: Eric Prud'hommeaux <eric@w3.org>
> Resent-To: RDB2RDF WG <public-rdb2rdf-wg@w3.org>
> Resent-Date: Fri, 23 Apr 2010 08:46:18 -0400
> 
> On Fri, Apr 23, 2010 at 2:27 AM, Juan Sequeda <juanfederico@gmail.com> wrote:
>> The issue of the ontology has never been discussed and I think this is
>> tremendously important!
>> When we are mapping our RDB to RDF, are we considering an
>> 
>> existing domain ontology (FOAF, SIOC, etc)
>> a putative ontology (automatically generating the ontology from the
>> schema/DDL)
>> a federated ontology: combining different ontologies
> 
> I've added
> [[
> This graph can be used when it is desired to let the database
> structure determine the effective ontology of the RDF view.
> ]]
> to <http://www.w3.org/2001/sw/rdb2rdf/use-cases/#isomorphic> and
> [[
> It is good Semantic Web practice to use shared ontologies. Using
> popular ontologies, or even ontologies which represent information in
> multiple domain databases, usually requires transformations
> [GraphTransform] to the direct graph.
> ]]
> to <http://www.w3.org/2001/sw/rdb2rdf/use-cases/#non-isomorphic>.
> 
> I've also added an extensive editorial note outlining the requirement
> space implied by the later "requirement":
> [[
> There are many types of graph transformation, representable by SQL
> views, SPARQL CONSTRUCTs, Horn logic, etc. The RDB2RDF workiing group
> would like feedback to decide if, for instance, the transformation
> expressed by RIF Basic Logic Dialect are appropriate. Use case
> contributions to this document will help determine the exact
> expressivity required.
> ]]
> 
>> I'm sure that we don't need to go into deep detail for the use cases, but
>> I'm sure that this topic needs to be present.
>> Juan Sequeda
>> +1-575-SEQ-UEDA
>> www.juansequeda.com
>> 
> 
> 
> 
> -- 
> -ericP
> office: +1.617.258.5741
> mobile: +1.617.599.3509
>

Received on Friday, 23 April 2010 13:37:59 UTC