[topicmapmail] Interpretive Difference between Occurrences and SI or SL

[Lars Marius Garshol]

* Tobias Redmann
>
> I want to write an "topic resolver" this means, I want to get the
> subject of a website from a URL. I want to use this as an extension to
> retrieve the subject for every site. The input for my function is the
> URL of the site, for example http://www.meshed.de/topicmaps.

Is this a classifier? That is, something that works out what the site  
is about? Or does it mean something else? What, in this case, is "the  
subject of a web site"?

> Now in my Topic Map I can model the following:
>
> Topic: Topic Maps identified by "http://www.meshed.de/topicmaps"
>
> Topic: Semantic Technology with the occurrence
> "http://www.meshed.de/topicmaps"

Uh, hang on. Why do you identify Topic Maps with that URI? I can see  
that you may want to claim

   http://www.meshed.de/topicmaps is-about Topic Maps
   http://www.meshed.de/topicmaps is-about Semantic Technology

but why do you make it the identifier of the first topic, and just an  
occurrence of the second?

> Now I can resolve the topics "Topic Maps" and "Semantic  
> Technology". The
> first by the subject identifier and the second by occurrence.

Here you lose me completely. It just gets too circular, and I don't  
know what you mean by any of these terms, so what you are saying I  
can't really tell. Let's clear up the questions above first, and then  
move on to this afterwards.

> So, I guess that the occurrence definetly HAS a meaning for the  
> identity
> - probably not by definition (standard) but by interpretation.

What, in that case, is that meaning?

--Lars M.