Thanks, Tanja.
This is very relevant to this discussion.
Cheers,
Bill
On Jan 12, 2007, at 6:46 AM, Tanja Sieber wrote:
I know that there is a PHD thesis facing the challenges of ontology
evolution:
Stojanovic, Ljiljana
Methods and Tools for Ontology Evolution
Universitat Karlsruhe, Fak. f. Wirtschaftswissenschaften. Diss. v.
05.08.2004.
An online version here:
http://www.ubka.uni-karlsruhe.de/cgi-bin/psview?document=/2004/wiwi/
10&searc
h=/2004/wiwi/10
I did not check, if there are the answers exactly to your
questions, but
maybe you find some other useful approaches,
Tanja
:: -----Ursprungliche Nachricht-----
:: Von: [EMAIL PROTECTED]
:: [mailto:[EMAIL PROTECTED] Auftrag von
Kashyap,
:: Vipul
:: Gesendet: Freitag, 12. Januar 2007 12:27
:: An: Bijan Parsia; [EMAIL PROTECTED]
:: Cc: [EMAIL PROTECTED]; w3c semweb hcls
:: Betreff: RE: Versioning vs Temporal modeling of Patient State
::
::
::
::
:: Is there any work in the literature related to:
::
:: - Defining what and when a version is?
:: - Do all updates necessarily lead to a new version?
:: - Is there a utility to instance versioning?
::
:: The observation about the utility of knowledge base update and
:: revision is an
:: astute one. IMHO the utility of instance versioning is not clear
either.
::
:: Just my 2 cents,
::
:: ---Vipul
::
::
:: > -----Original Message-----
:: > From: [EMAIL PROTECTED]
:: [mailto:public-semweb-lifesci-
:: > [EMAIL PROTECTED] On Behalf Of Bijan Parsia
:: > Sent: Friday, January 12, 2007 5:28 AM
:: > To: [EMAIL PROTECTED]
:: > Cc: [EMAIL PROTECTED]; 'w3c semweb hcls'; public-semweb-lifesci-
:: > [EMAIL PROTECTED]
:: > Subject: Re: Versioning vs Temporal modeling of Patient State
:: >
:: >
:: > On Jan 12, 2007, at 9:36 AM, [EMAIL PROTECTED] wrote:
:: >
:: > > Recently I had an interesting conversation with Werner
Cuesters,
:: > > professor in Bufallo and colleague of Barry Smith. He has some
:: > > theory about ontology maintenance and versioning and it
considers
:: > > both "classes" and "instances". Both can change either
because you
:: > > made en error, either you view on the world changed, either
because
:: > > the world changed . It turns out that you can only handle
changes
:: > > if you know for each change exactly what de reason of the
change
:: > > was. That reason should be documented in the system.
:: > [snip]
:: >
:: > The standard lingo for this is that a change to the knowledge
base
:: > due to a change in the *world* is called an *update* whereas a
change
:: > in your knowledge base due to a change in *your knowledge* of the
:: > (current static) world is called a *revision*. The locus
classicus
:: > for this, IMHO, is:
:: > <http://citeseer.ist.psu.edu/417296.html>
:: >
:: > Following there model theoretic accounts, there is a spate of
work
:: > defining reasoning services that compute the updated or revisied
:: > knowledge base given a proposed update or revision. E.g.,
recently:
:: > <http://lat.inf.tu-dresden.de/~clu/papers/archive/kr06c.pdf>
:: >
:: > The utility of model oriented revision and update for expressive
:: > logics is, IMHO, not fully established, though it is conceptually
:: > useful in my experience. There is, of course, a large chunk of
work
:: > on revising (and even updating) belief *bases*, that is,
attending
:: > primarily to the *asserted* set of formulae.
:: >
:: > Hope this helps.
:: >
:: > Cheers,
:: > Bijan.
:: >
:: >
::
::
::
::
::
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Laboratory for Bioimaging & Anatomical Informatics
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