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RE: A proposal for introducing anonymous individuals into OWL 1.1 functional-style syntax

From: Michael Schneider <schneid@fzi.de>
Date: Wed, 20 Feb 2008 18:40:54 +0100
Message-ID: <0EF30CAA69519C4CB91D01481AEA06A0750F5D@judith.fzi.de>
To: "Boris Motik" <boris.motik@comlab.ox.ac.uk>
Cc: "OWL Working Group WG" <public-owl-wg@w3.org>
Boris Motik wrote on February 19, 2008: 

>The main feature of the current proposal is that, rather than 
>using the construct by Peter that is not axiom based, bnodes are
>introduced directly into the functional-style syntax. It is 
>true that Skolem semantics are proposed, but this gives the additional
>advantage that arbitrary graphs can be accommodated, so in 
>this sense it reduces the gap between DL and Full.
>
>It would be possible to use the same technique with 
>existential semantics, but this would require a side condition 
>ruling out non-
>tree graphs in order to maintain decidability.

Ah, you mean that

  ObjectPropertyAssertion ( R _:x _:x )

would now be possible with your proposal, right?

Cheers,
Michael

--
Dipl.-Inform. Michael Schneider
FZI Forschungszentrum Informatik Karlsruhe
Abtl. Information Process Engineering (IPE)
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Received on Wednesday, 20 February 2008 17:41:07 GMT

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