Hi Deb (01)
Thanks for forwarding Ravinders question.
You mean its similar to my question about how to go about adding new
dimensions to the framework? (02)
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') (03)
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
E in information theory (04)
http://en.wikipedia.org/wiki/Entropy (05)
The less organzeds is a system the higher its entropy - lots of
changes going on in the web (06)
So maybe I was thinking of 2 questions (07)
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) (08)
Cheers (09)
PDM (010)
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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> (011)
--
Paola Di Maio
School of IT
www.mfu.ac.th
********************************************* (012)
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