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Re: Linking to non-RDF datasets

From: Alasdair J G Gray <Alasdair.Gray@manchester.ac.uk>
Date: Tue, 12 Mar 2013 13:47:36 +0000
Cc: Linking Open Data <public-lod@w3.org>, semantic-web@w3.org
Message-Id: <42E446F9-B22A-4B15-A4A3-3FB81FAEF9FD@manchester.ac.uk>
To: Bernard Vatant <bernard.vatant@mondeca.com>
Hi Bernard,

On 12 Mar 2013, at 13:40, Bernard Vatant <bernard.vatant@mondeca.com> wrote:

> Hi Alasdair
> 
> Some results from http://lov.okfn.org/dataset/lov/search/#s=dataset
> 
> http://purl.org/dc/dcmitype/Dataset is quite generic, but does not have any attached properties.
> http://purl.org/ctic/dcat#Dataset is a subclass of the above, is intended to represent datasets in a catalogue, and is not limited to RDF datasets
> 
> ... many more I let you explore
> 
I am aware of these as well as the proposal for schema.org/Dataset. However, as far as I'm aware, VoID is the only one with the notion of linksets where you describe the source and target for a set of links.

Alasdair

> Hope that helps
> 
> Bernard
> 
> 
> 2013/3/12 Alasdair J G Gray <Alasdair.Gray@manchester.ac.uk>
> Hi All,
> 
> We are making extensive use of the VoID vocabulary [1] in the Open PHACTS project [2] to describe our datasets.  We are currently deciding how to model a recurring use case of needing to describe non-RDF datasets and manage linksets to them.
> 
> In the VoID vocabulary, a dataset is defined to be [3]
> A set of RDF triples that are published, maintained or aggregated by a single provider.
> 
> Since all predicates are defined with a domain/range of void:Dataset, this would mean that it would be incorrect to use them for any dataset that is not a set of RDF triples. However, this usage is becoming common.
> 
> Should we go ahead and use the predicates despite this inaccurate interpretation of the non-RDF dataset? 
> 
> Is there another vocabulary that allows for the modelling of linksets that does not restrict the dataset to a set of RDF triples? I am aware of DCAT [4] but do not see suitable linking predicates.
> 
> Should we develop a set of super-properties that do not have the domain/range restrictions?
> 
> Thanks,
> 
> Alasdair
> 
> [1] http://www.w3.org/TR/void/
> [2] http://www.openphacts.org/
> [3] http://vocab.deri.ie/void#Dataset
> [4] http://www.w3.org/TR/vocab-dcat/
> 
> 
> Dr Alasdair J G Gray
> Research Associate
> Alasdair.Gray@manchester.ac..uk
> +44 161 275 0145
> 
> http://www.cs.man.ac.uk/~graya/
> 
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> 
> 
> 
> 
> 
> 
> -- 
> Bernard Vatant
> Vocabularies & Data Engineering
> Tel :  + 33 (0)9 71 48 84 59
> Skype : bernard.vatant
> Blog : the wheel and the hub
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> 

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

http://www.cs.man.ac.uk/~graya/

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Received on Tuesday, 12 March 2013 13:48:07 UTC

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