Re: Facet algebra

"yannis_tzitzikas" <[email protected]>
Newsgroups gmane.comp.infodesign.facetedclassification
Message-ID <[email protected]>
Dear  Claudio,

   I agree with you that a compound term that has an empty extension  
does not necesarilly  describes something invalid or impossible.  
So if one wants to get ... fruitful new ideas then he does not have 
to use the Compound Terms Composition Algebra.  If on the other hand 
one wants to build an information base using a faceted taxonomy and 
make object indexing easy and error-free, then the Compound Terms 
Composition Algebra  is (according to my opinion) the most well-
defined and powerful tool  that we have now.

Ciao,

Yannis

--- In [email protected], Claudio Gnoli 
<gnoli@a...> wrote:
> / Claudio Gnoli --> "Faceted classification discussion"
> 
> On July 19, Yannis Tzitzikas presented to this list his work 
> on coding a "compound terms composition algebra", prescribing 
> which combinations of facets are legal and which ones are 
> illegal: EG, of
> 
>    Greece : sea sports
>    Austria : sea sports
> 
> only the first one makes sense and hence it is legal.
> 
> On the other hand, an interesting paper by Joe Tennis
> 
<http://students.washington.edu/jtennis/Tennis_three_spheres_2002.pdf>
> says:
> "In classification, when symbols of concepts are placed 
> into interrelationship with one another, gaps emerge. This has 
> been discussed in the literature as well. Barbara Kwasnik (1992)
> discusses the role of classification schemes in shaping theory. 
> She uses the periodic table as one such structure that was 
> able to cast light on questions in the weight of elements. 
> Foskett (1991) poses a similar set of questions to specialized 
> classification schemes. In a faceted classification scheme 
> he argues, combining facets not yet combined in your collection 
> would point to gaps in the research field, and therefore 
> constitute topics for further research."
> 
> So I wonder, how can we know which combinations are nonsense 
> and which ones are fruitful new ideas? Of course our aim is not 
> to excavate a marine basin in Vienna (I hope)... But must we find 
> out fruitful combinations just by trying each of them? Is there
> any feature of Yannis's project dealing with this?...
> 
> Thanks.


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