VoID Subset

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
University of Manchester
Oxford Road
Manchester
M13 9PL, UK

Please consider the environment before printing this email.