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Re: Dataset URIs and metadata.

From: Michael Hausenblas <michael.hausenblas@deri.org>
Date: Thu, 21 Jul 2011 15:27:21 +0100
Cc: public-lod@w3.org
Message-Id: <537E0A15-E19D-45A2-B831-B449B4548597@deri.org>
To: Frans Knibbe <frans.knibbe@geodan.nl>, Keith Alexander <ka@talis.com>

> But is this really common practice nowadays? Take DBpedia for  
> example. What is the URI of the DBpedia dataset? Is it http://dbpedia.org? 
>  That does not seem to resolve to a set of metadata.

Did you have a look at the URI I gave you? I mean http://lod-cloud.net/void.ttl

BTW, some 30% [1] of the LOD cloud datasets are using VoID ...

> Is there a general way of obtaining datasets URIs?

Not to my knowledge. We're working on it in LATC [2] - Keith?

Cheers,
	Michael

[1] http://www4.wiwiss.fu-berlin.de/lodcloud/state/#data-set-level-metadata
[2] http://latc-project.eu/

--
Dr. Michael Hausenblas, Research Fellow
LiDRC - Linked Data Research Centre
DERI - Digital Enterprise Research Institute
NUIG - National University of Ireland, Galway
Ireland, Europe
Tel. +353 91 495730
http://linkeddata.deri.ie/
http://sw-app.org/about.html

On 21 Jul 2011, at 15:19, Frans Knibbe wrote:

>
> Thanks for the replies. It seems that there is agreement that a  
> dataset should have a URI and that dereferencing that URI should  
> return metadata about the dataset. That is good to know.
>
> But is this really common practice nowadays? Take DBpedia for  
> example. What is the URI of the DBpedia dataset? Is it http://dbpedia.org? 
>  That does not seem to resolve to a set of metadata.
>
> Is there a general way of obtaining datasets URIs?
>
> I can imagine an RDF dataset comprising all known dataset URIs. And  
> of course that dataset will have a URI itself. Does such a dataset  
> exist at the moment?
>
> Regards,
> Frans
>
>
> On 2011-07-21 12:35, Frans Knibbe wrote:
>>
>> Hello,
>>
>> I have just placed a Linked Data dataset online and now I am  
>> struggling with finding the best way to publish the metadata of the  
>> dataset. I wonder if there are best practices for referencing a  
>> dataset and its metadata, and for linking the two.
>>
>> I did find out that using the Vocabulary of Interlinked Data (VoID)  
>> is a good way to publish the metadata of a dataset. But I still  
>> need some guidance. I have come up with three questions:
>>
>> 1) Is it common practice/recommendable to regard a dataset a  
>> resource? If it is, then all datasets should have a URI, right?
>> 2) If having a dataset URI is a good thing, what should be behind  
>> the URI? Should dereferencing the URI lead to the dataset metadata  
>> (a VoID file for example)?
>> 3) If dereferencing a dataset  URI leads to the dataset metadata,  
>> should there be separate HTML and RDF versions of the metadata? Or  
>> is it better to have a HTML page with embedded (RDFa) RDF data?
>>
>> Thanks in advance for your help,
>> Frans
>
Received on Thursday, 21 July 2011 14:28:05 UTC

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