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Re: SEM: comprehensive entailments without dark triples

From: Dan Connolly <connolly@w3.org>
Date: 22 Apr 2002 15:24:20 -0500
To: Jonathan Borden <jonathan@openhealth.org>
Cc: "Peter F. "Patel-Schneider <pfps@research.bell-labs.com>, Jeremy Carroll <jjc@hplb.hpl.hp.com>, www-webont-wg@w3.org
Message-Id: <1019507063.5520.839.camel@dirk>
On Mon, 2002-04-22 at 14:12, Jonathan Borden wrote:
> Dan Connolly wrote:
> >
> > So the cyclic structure above isn't entailed, under
> > Jeremy's axioms. So what? What do I, as a real-world
> > user, lose?
> 
> How about, from my perspective as a real-world user, working in a real-world
> problem domain that currently uses description logic based classifications
> (e.g. SNOMED-RT, etc).
> 
> Suppose there exists a disease which is defined as a cyclic structure.

??

Er... that's begging the question. No fair.

I don't expect cyclic structures to come up in normal stuff at all.

Please explain why you think cyclic structures will be necessary
to define (?) a disease.

> Suppose I have an individual defined by a set of facts, and these facts
> support the classification of the individual as being in the class of
> patients having the disease.
> 
> It would be really really great if, after going to all this work to develop
> this disease classification system, the classifier were able to tell me that
> a patient having all the pathognomonic symptoms of a disease actually has
> this diagnosis.
> 
> So what I would stand to lose is that what we do would not be applicable to
> the 200,000 - 400,000 term ontologies created and in clinical use -- not to
> say the least making inferences _across_ different healthcare ontologies
> e.g. MeSH, CPT, ICD, SNOMED, GALEN etc.
> 
> (Figuring this out in an iterative fashion would take something approaching
> infinite time).
> 
> Jonathan
-- 
Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Monday, 22 April 2002 16:25:27 GMT

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