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Re: Cross-ontologies reasoning

From: Bill Andersen <andersen@ontologyworks.com>
Date: Mon, 29 Dec 2003 09:59:58 -0500
Message-Id: <AB6BD8CD-3A0F-11D8-B67A-003065A29714@ontologyworks.com>
Cc: public-sws-ig@w3.org, www-rdf-logic@w3.org, Drew McDermott <drew.mcdermott@yale.edu>
To: Jim Hendler <hendler@cs.umd.edu>


On Dec 26, 2003, at 1205, Jim Hendler wrote:
>
> Drew,. I agree completely if we use your definition of 
> ontology-merging.  Partial mappings have a greater
> success (particularly allowing heuristic mechanisms), and of course 
> there's no reason we can't have some human in the loop.  Also, none of 
> the literature I know allows instances to be mapped against multiple 
> ontologies, which is a new idea that occurs easily on the Semantic 
> Web, and which opens many opportunities for new research.
>  So I guess I'm kidding myself
>  -JH

Hey, Jim...

I don't often post to this group but this discussion is near to my 
heart - well,
at least to my research interests.  I think the answer depends not so 
much on the
ontologies, but on the systems that advertise those ontologies as a 
description
of what they "know about".  Your prescription would be fine if all you 
want to
do is content management.  There, close is good enough.  Close is not 
good enough
for many database integration applications, where much could hinge on 
the
correctness of the mapping (e.g., a factory floor control application). 
  Drew
is likely to be correct that such mappings will be hard to come by 
automatically,
but, just like what kind of "ontology" you need depends on what you 
want to do
with it, so it is with what kind of mappings you need.  Bottom line is 
I don't
think you're kidding yourself so long as you stick to (vary) 
fault-tolerant
applications.

Question: What does it mean "[to map] instances against multiple 
ontologies"?

   .bill

--
Bill Andersen (andersen@ontologyworks.com)
Chief Scientist
Ontology Works, Inc. (www.ontologyworks.com)
1132 Annapolis Road, Suite 104
Odenton, Maryland 21113
United States
Office: 410-674-7600
Mobile: 443-858-6444
Received on Monday, 29 December 2003 10:02:29 GMT

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