RE: How to link a dataset to its superset?

Hi, Frans.



I'm cc'ing the DXWG [1], where issues concerning relationships between datasets are also under discussion.



Cheers,



Andrea



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[1] https://www.w3.org/2017/dxwg/



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Andrea Perego, Ph.D.
Scientific / Technical Project Officer
European Commission DG JRC
Directorate B - Growth and Innovation
Unit B6 - Digital Economy
Via E. Fermi, 2749 - TP 262
21027 Ispra VA, Italy

https://ec.europa.eu/jrc/

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The views expressed are purely those of the writer and may
not in any circumstances be regarded as stating an official
position of the European Commission.

________________________________
From: Frans Knibbe [frans.knibbe@geodan.nl]
Sent: 29 November 2017 15:14
To: public-lod@w3.org
Subject: How to link a dataset to its superset?

Hello,

The VoID vocabulary can be used to describe RDF datasets, and can be used to specify that one dataset is a subset of another dataset. But what is the proper/best way for the inverse relationship - saying that a dataset is a superset of the other?

An example:

ex:DatasetA a void:Dataset;
  void:subset ex:DatasetB
.

ex:DatasetB a void:Dataset;
  ? ex:DatasetA
.

What could be put at the question mark? VoID has the property void:inDataset, but it has foaf:Document as its domain. So it can only be used for documents, not for any dataset. Dcterms:isPartOf is another possibility, but it is a very general property which could already be in use for other purposes in the same dataset. Also, it seems kind of funny hat the two inverse relationships come from different vocabularies. Could there be something better?

If there is no ideal solution, I wonder if there at least is a common practice.

Regards,
Frans