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RE: On the integration of Topic Maps and RDF

From: Martin Lacher <lacher@db.stanford.edu>
Date: Thu, 23 Aug 2001 16:34:25 -0700
To: "Leo Obrst" <lobrst@mitre.org>, "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
Cc: <em@w3.org>, <www-rdf-interest@w3.org>, <gdm@empolis.co.uk>
Message-ID: <NEBBIEAODMJKOIMFPAEBAEIACLAA.lacher@db.stanford.edu>
> I have to agree with Peter on this. I really can't understand the
> alternative. Unless you really do formalize a third representation
> language which attempts to "preserve" the semantics of the mappings
> between your other two languages (say, with a notion of the formal
> properties represented and preserved on each side through those
> "mappings" or morphisms), then you are spinning in air. Semantic
> interoperability or semantic "mapping" requires a commensurate
> language/model. How else can it work? Modeling the semantics of a model
> in the syntax of another model just can't work. You need to preserve the
> semantics of the original model when you translate it into the syntax of
> the other model (or approximate it to a greater or lesser degree of
> possible formalization).

Leo,

Thank you for comments.
We had a much more modest goal: to enable a user to query two information
source the data models of which she understands.

Martin
Received on Thursday, 23 August 2001 19:37:29 GMT

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