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RDF-Entailment: Remove duplicate anonymous resources - looking for an algorithm

From: Reto Bachmann-Gmür <reto@gmuer.ch>
Date: Mon, 21 Nov 2005 10:04:43 +0100
Message-ID: <43818DAB.4030304@gmuer.ch>
To: semantic-web at W3C <semantic-web@w3c.org>


I'm looking for an algorithm to remove duplicate anonymous resources 
from an RDF-Model.

Fo example, given the graph:

(1) _:a rdfs:label "test".
(2) _:a rdfs:comment "...".
(3) _:b rdfs:label "test".

The algorithm should tell me that I can safely drop statement 3.

Or in a more complex example:

(1) _:a foaf:knows _:b.
(2) _:b foaf:knows _:a.
(3) _:c foaf:knows _:d.
(4) _:d foaf:knows _:c.

Tell me that 3 and 4 can be removed, but that the reduced graph cannot 
further be reduced, even if _:a and _:b seem indistinguishable.

Does anybody has an algorithm or even some code for doing this?

Received on Monday, 21 November 2005 09:05:29 UTC

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