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VoID Subset

From: Alasdair J G Gray <A.Gray@cs.man.ac.uk>
Date: Wed, 2 May 2012 11:24:32 +0100
To: semantic-web@w3.org
Message-Id: <FC8DE46B-F1C8-4ABA-968A-B44FDD8F2EDF@cs.man.ac.uk>
Hello,

I am going through the VoID Note [1] and have some confusion with the way that void:subset is used. It seems that in different parts of the document void:subset is used to declare: (1) "has subset"; and (2) "is subset of".

In Section 4.4, the void:subset property is used to declare that a dataset has subsets. The example given is,
:DBPedia a void:Dataset;
	 void:subset :DBPedia_shortabstract.
which is used to declare that dataset :DBPedia_shortabstract is a subset of :DBPedia, i.e. the "has subset" semantics.

However in Section 5.2, the void:subset property is used to declare that the linkset is a subset of a dataset. The example given is,
:DBPedia_Geonames a void:Linkset;
	 void:subset :DBPedia.
which is used to declare that dataset :DBPedia_Geonames is a subset of :DBPedia, i.e. the "is subset of" semantics.

Looking at the vocabulary definition for the property [2] it seems that the interpretation in Section 4.4 is the correct one. Will another property be added as the inverse of void:subset, or should the declaration of linksets being subsets of a dataset be made in the dataset description?

Best regards,

Alasdair

[1] http://www.w3.org/TR/void/
[2] http://vocab.deri.ie/void#subset

Dr Alasdair J G Gray
Research Associate
Alasdair.Gray@manchester.ac.uk
+44 161 275 0145

Room 1.17
Kilburn Building
School of Computer Science
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M13 9PL, UK

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Received on Wednesday, 2 May 2012 10:25:03 UTC

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