RE: RDF Schema / LODD mapping -- Re: New proposal: health & medical extensions to schema.org

I would say that if you follow ontoclean, being a patient is a non-rigid property of a person.

Ronald

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Ronald Cornet, PhD                    email: R.Cornet@amc.uva.nl
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From: Michel Dumontier [mailto:michel.dumontier@gmail.com]
Sent: Wednesday, May 23, 2012 5:02 PM
To: Freimuth, Robert, Ph.D.
Cc: Jim McCusker; Aaron Brown; Dan Brickley; Renato Iannella; Lin MD, Simon; Matthias Samwald; public-semweb-lifesci@w3.org
Subject: Re: RDF Schema / LODD mapping -- Re: New proposal: health & medical extensions to schema.org

If you follow ontoclean [1], then all you need to know is that if not all people are patients, then patients is a subtype of people.

m.

[1]  http://en.wikipedia.org/wiki/OntoClean
On Wed, May 23, 2012 at 5:50 PM, Freimuth, Robert, Ph.D. <Freimuth.Robert@mayo.edu<mailto:Freimuth.Robert@mayo.edu>> wrote:
> For instance, Physicians are not the same thing as Patients, but a Patient can also be a Physician.

...and a physician can be a patient, both of which are roles that entities can play.  IMO, this illustrates the importance of defining roles and entities separately (rather than through inheritance from a common parent).

Bob

________________________________
From: public-semweb-lifesci-request@listhub.w3.org<mailto:public-semweb-lifesci-request@listhub.w3.org> on behalf of Jim McCusker
Sent: Wed 5/23/2012 9:40 AM
To: Aaron Brown
Cc: Dan Brickley; Renato Iannella; Lin MD, Simon; Matthias Samwald; public-semweb-lifesci@w3.org<mailto:public-semweb-lifesci@w3.org>

Subject: Re: RDF Schema / LODD mapping -- Re: New proposal: health & medical extensions to schema.org<http://schema.org>

On Tue, May 22, 2012 at 9:44 AM, Aaron Brown <abbrown@google.com<mailto:abbrown@google.com>> wrote:
Ok. But I still don't see why this needs to be specified explicitly. Otherwise, wouldn't it also be necessary to specify that a MedicalEntity is disjoint from a Movie, a SocialEvent, a DryCleaningOrLaundry, etc? It seems to get out of hand pretty quickly. For that matter, if someone wanted to extend the proposed schema by defining a Physician type that inherits from both Person and MedicalEntity, I think would be OK.

RDF and other semantic web standards allow for instances to have multiple unrelated types. This is part of the Open World Assumption, and is a good thing, since it allows us to discover classifications for things later on. In order to create the same sort of single inheritance that one sees in, for instance, Java, simply make each sibling under a given class disjoint with all its other siblings. I would be reluctant to do that blindly, though, as it can often result in modeling errors. For instance, Physicians are not the same thing as Patients, but a Patient can also be a Physician.

Jim
--
Jim McCusker
Programmer Analyst
Krauthammer Lab, Pathology Informatics
Yale School of Medicine
james.mccusker@yale.edu<mailto:james.mccusker@yale.edu> | (203) 785-6330<tel:%28203%29%20785-6330>
http://krauthammerlab.med.yale.edu<http://krauthammerlab.med.yale.edu/>

PhD Student
Tetherless World Constellation
Rensselaer Polytechnic Institute
mccusj@cs.rpi.edu<mailto:mccusj@cs.rpi.edu>
http://tw.rpi.edu<http://tw.rpi.edu/>



--
Michel Dumontier
Associate Professor of Bioinformatics, Carleton University
Chair, W3C Semantic Web for Health Care and the Life Sciences Interest Group
http://dumontierlab.com


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