Nikita Ogievetsky has presented a continuation of his work for Extreme Markup
2001 showing a very concise form of RDF Topic Map representation based on a
"Quantum" Topic Map model easy to constrain using DAML+OIL.
Ogievetsky's Quantum Topic Map model is a breakdown of Topic Maps objects
into particles which can be compared to the Topic Map Reference Model
presented by Michel Biezunski and Steve Newcomb yesterday -even though it is
based on a previous version of the Topic Map Processing Model (TMPM4)- and
its name comes out of a comparison with the dual nature of electromagnetic
waves which can be seen as particles when appropriate.
The mapping between this Topic Map model and RDF is based on the
generation of a RDF Schema specific for each Topic Map and the availability
of such a schema allows a direct mapping between Quantum Topic Map particles
and RDF triples whereas other mapping include the mapping information in the
RDF instance documents themselves.The result is not only very concise, the
generated RDF document being shorter than its XTM counterpart, but also easy
to manipulate with RDF tools such as DAML+OIL and probably RDF query
languages too.
The demonstration included the XSLT transformation from a sample XTM
document into "Quantum Topic Map RDF" and the validation of this RDF document
through DAML+OIL rules very readable and simple to write.
This proposal appears thus to be a smart "schema centric" alternative to
the mapping developed at the Knowledge Technology
nocturne.
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