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RE: [HCLS] Bridging Ontology...An Automated Approach?

From: Mork, Peter D.S. <pmork@mitre.org>
Date: Tue, 22 Aug 2006 08:49:59 -0400
Message-ID: <224FBC6B814DBD4E9B9E293BE33A10DC011776E6@IMCSRV5.MITRE.ORG>
To: "Kashyap, Vipul" <VKASHYAP1@PARTNERS.ORG>, <donald.doherty@brainstage.com>
Cc: <public-semweb-lifesci@w3.org>

>> This is the approach adopted by caBIG.  Individual data models (or
>> schemata) are related to a common ontology.  By itself, this doesn't
>> allow one to rewrite queries (because of tacit assumptions present
in
>> the respective data models?), but the hope is that development of
>> query-mediators will be facilitated by the existence of a loose
>> mapping.
>
>[VK] Is the CaBIG project also developing these query mediators? If
yes,
>are
>they SQL or XQuery based? I think they are not into RDF (but I may be
>mistaken)

To the best of my knowledge, at this time they have not addressed query
mediation.  The mediation slides suggest that the intended query
language will be XQuery-based, but we are talking about
PowerPoint-ware.

Currently, each data resource (relation or attribute) is annotated with
terms drawn from the NCI thesaurus (which is expressed in OWL).  Using
this infrastructure, you can search the participants' schemata using
terms drawn from the thesaurus.  Once you have identified the relevant
data resources, you could choose to develop a mediator to address
subtle differences in assumptions/syntax/etc.  Thus, in caBIG, the role
of the ontology is to facilitate data discovery more than data
interoperability.
Received on Tuesday, 22 August 2006 12:53:31 GMT

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