I see what you mean. (01)
Until now, we have discussed uncertainty (and risk also fits in here
somehow) as resulting from unknown variables that may affect the
correctness of a model over time, or under a certain condition (02)
Here uncertainty seems to derive from the difficulty of matching one
construct (the query) which is formed based on a given cognitive model
of the user (what the user does not know and wants to find out) with
the structure of the ontology. (03)
It is uncertainty but of a different kind. I dont think it would come
under entropy from what I see, then I wonder where would it fit in the
framework.
Probably its a 'user perspective'
I think more a perspective than a dimension perhaps (04)
what do you think (05)
PDM (06)
On 8/29/07, Deborah MacPherson <debmacp@xxxxxxxxx> wrote:
> Hi Paola -
>
> Yes, as you say below but it seems to me Ravinder also wants a way to
> recognize ontologies when they are initially encountered. Would this have to
> do with "where it fits" in the framework including its degree of
> uncertainty?
>
> Deb
>
>
> On 8/28/07, paola.dimaio@xxxxxxxxx <paola.dimaio@xxxxxxxxx > wrote:
> > sorry, slighly amended post
> >
> > On 8/29/07, paola.dimaio@xxxxxxxxx <paola.dimaio@xxxxxxxxx> wrote:
> > > Hi Deb
> > >
> > > Thanks for forwarding Ravinders question.
> > > You mean its similar to my question about how to go about adding new
> > > dimensions to the framework?
> > >
> > > The suggestion of adding 'entropy' to the framework comes from the
> > > discussions around which there seems to be some agreement, that
> > > ontologies should model 'change' - from simple change of usage of
> > > words and terminologies during time, to the more complex changes of
> > > states of entities, to the more ambitious modelling of 'unknown
> > > variables'
> > > briefly touched upon in a discussion with Ed (have a generic class of
> > > 'unpredictable' random variables in any ontological model to represent
> > > at least symbolically 'uncertainty') -
> > Probably also partly answers the question of why bridges fall
> > >
> > > Entropy seems to abstract quite well the principle of change, without
> > > making any prescription at this stage on how change should be
> > > modelled, which probably depends on the domain being addressed.
> > > The current (hm, yesterday morning asia pacific time) entry on
> > > wikipedia gives a good enough introduction, with a clear reference to
> > > S in information theory
> > >
> > > http://en.wikipedia.org/wiki/Entropy
> > >
> > > The less organzeds is a system the higher its entropy - lots of
> > > changes going on in the web
> > >
> > >
> > > So maybe I was thinking of 2 questions (or more)
> > >
> > > 1.is entropy a suitable dimension to be added to the framework to
> > > summarize the discourse on change
> > > 2. how do we 'change' the framework over time? (that matches both 1,
> > > as well as Ravindra's problem - which maybe others can address
> > > separately)
> > >
> > > Cheers
> > >
> > > PDM
> > >
> > >
> > >
> > > On 8/29/07, Deborah MacPherson <debmacp@xxxxxxxxx> wrote:
> > > > Hi Paola,
> > > >
> > > > Please see the message below forwarded from Ravinder Thakur on
> > > > Linking-open-data at MIT. Will his problem be addressed in the
> framework?
> > > > Does anyone have suggestions for Mr. Thakur and his collaborators at
> linking
> > > > open data?
> > > >
> > > > Thank you,
> > > >
> > > > Deborah
> > > >
> > > > Deborah L. MacPherson
> > > > Projects Director, Accuracy&Aesthetics
> > > > Specifier, WDG Architecture PLLC
> > > >
> > > > ---------- Forwarded message ----------
> > > > From: "Ravinder Thakur" < ravinderthakur@xxxxxxxxx>
> > > > To: "Linking Open Data" <
> linking-open-data@xxxxxxxxxxxxxx >
> > > > Date: Sun, 26 Aug 2007 22:18:09 -0700
> > > > Subject: [Linking-open-data] RDF/SPARQL and consistent metadata about
> > > > content/structure of ontologies
> > > >
> > > > Hi,
> > > >
> > > > For the past few days i have been trying to look at RDF/SPARQL from
> query
> > > > designing point of view. What basically i have been trying to do is to
> take
> > > > very simple /user/ queries (" e.g. Bill Gates net worth") and try to
> see if i
> > > > can automatically create the corresponding queriers in SPARQL. The
> versatile
> > > > nature of domain of data stored in RDF means that data from every
> domain
> > > > would have its own ontology. And the knowledge/understanding of
> ontology is
> > > > very much prerequisite to understanding the data based on that
> particular
> > > > ontology.
> > > >
> > > > This seems a little bit of problem to me. This means that we cannot
> build
> > > > queries until we know that structure of ontologies and since there
> might be
> > > > thousands of ontologies how are we supposed to know about all the
> > > > ontologies. Moreover everyday new ontologies will be added to the
> web.? IS
> > > > the assumption that the dust will settle after some time and we will
> have
> > > > only very few good ontologies about the world ? This seems highly
> > > > restrictive to me.
> > > >
> > > > Obviously I want to write a query processor that is independent on the
> > > > ontology that the data i am looking on is based upon. I don't want to
> know
> > > > pre hand what ontology might correspond to the data i am looking .
> What i am
> > > > looking for some consistent way to represent the /METADATA/ about the
> > > > structure and content about ontologies so that from the metadata about
> the
> > > > ontology, i can automatically know about the structure and relevance
> of the
> > > > ontology for the query i have in hand.
> > > >
> > > > Has anybody faced the problem i have highlighted ? or what i am saying
> is
> > > > stupid :) and there is some simple way out there ?
> > > >
> > > > Thanks
> > > > Ravinder Thakur
> > > >
> > > >
> > > > On 8/27/07, paola.dimaio@xxxxxxxxx < paola.dimaio@xxxxxxxxx> wrote:
> > > > >
> > > > > When is the next update of the framework due?
> > > > > I propose we add 'entropy' as a new dimension
> > > > >
> > > > > Do I have to write something up? Or are the discussions so far on
> the
> > > > > need to model
> > > > > 'change' sufficient?
> > > > >
> > > > >
> > > > > --
> > > > > Paola Di Maio
> > > > > School of IT
> > > > > www.mfu.ac.th
> > > > > *********************************************
> > > > >
> > > > >
> > > >
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> > > > On 8/27/07, paola.dimaio@xxxxxxxxx < paola.dimaio@xxxxxxxxx> wrote:
> > > > >
> > > > > When is the next update of the framework due?
> > > > > I propose we add 'entropy' as a new dimension
> > > > >
> > > > > Do I have to write something up? Or are the discussions so far on
> the
> > > > > need to model
> > > > > 'change' sufficient?
> > > > >
> > > > >
> > > > > --
> > > > > Paola Di Maio
> > > > > School of IT
> > > > > www.mfu.ac.th
> > > > > *********************************************
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> > > >
> > > > --
> > > > *************************************************
> > > > Deborah L. MacPherson
> > > > Projects Director, Accuracy&Aesthetics
> > > > Specifier, WDG Architecture PLLC
> > > >
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> > > --
> > > Paola Di Maio
> > > School of IT
> > > www.mfu.ac.th
> > > *********************************************
> > >
> >
> >
> > --
> > Paola Di Maio
> > School of IT
> > www.mfu.ac.th
> > *********************************************
> >
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--
Paola Di Maio
School of IT
www.mfu.ac.th
********************************************* (08)
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