[rdfweb-dev] knows, vs rel vs xxx
julian_bond at voidstar.com
Fri Sep 19 10:51:55 UTC 2003
Ian Davis <iand at internetalchemy.org> wrote:
>But this is the whole point of using RDF in the first place! It's a key
>advantage over an XML format. You don't need special tool support to
>make use of subproperty relations, you just need to implement the RDFS
>closure rules given in the RDF Model Theory doc. If just want to hack
>the subproperty relation without all the others then you could
>implement the following algorithm:
>Add the triples from the relationship schema to your document triples
>For every triple of the form AProp rdfs:subPropertyOf BProp
> Find all triples of the form X AProp Y and add a triple X BProp Y
>Repeat until no more triples are added.
>Proceed with the rest of your code as though nothing had happened.
There are words in here that I don't understand ;-) But I think I
understand what you're getting at. And I think the approach will break
1) The relationship schema doesn't exist in rdf form or
2) Someone starts adding relationships that don't exist in the schema
I believe there are multiple examples of both problems in the wild.
Julian Bond Email&MSM: julian.bond at voidstar.com
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