Re: Sample DCAT files

Dear Karen,

The data in the EDP endpoint (you may want to use the Virtuoso endpoint
directly at https://www.europeandataportal.eu/sparql) is split into named
graphs, one named graph per one dataset record.

List of named graphs:

PREFIX dcat: <http://www.w3.org/ns/dcat#>
SELECT DISTINCT ?g WHERE
{
  GRAPH ?g {
       ?s a dcat:Dataset
  }
}
LIMIT 100

(remove the limit to get all)

All data from a particular named graph (graph IRI in prefix):

PREFIX dcat: <http://www.w3.org/ns/dcat#>
PREFIX dataset: <
http://europeandataportal.eu/set/data/destatis-service-51000-0004>

CONSTRUCT {?s ?p ?o}
WHERE
{
  GRAPH dataset: {
       ?s ?p ?o
  }
}

I hope this helps. We also harvest EDP for our research purposes using our
tool LinkedPipes ETL (https://etl.linkedpipes.com/).

Best regards,

Jakub Klímek


On Mon, Dec 18, 2017 at 11:38 PM Karen Coyle <kcoyle@kcoyle.net> wrote:

> Makx, thanks. However, since I don't know much about those datasets I
> don't know what to ask for in order to get all of the DCAT metadata for
> a single dataset. Could you provide a few queries that select datasets
> by some unique factor?
>
> Thanks,
> kc
>
> On 12/18/17 10:54 AM, mail@makxdekkers.com wrote:
> > The European Data Portal has a SPARQL endpoint (
> https://www.europeandataportal.eu/sparql-manager/en/) that gives access
> to their DCAT-AP metadata of all 788,671 datasets.
> >
> > Makx.
> >
> > -----Original Message-----
> > From: Peter.Winstanley@gov.scot [mailto:Peter.Winstanley@gov.scot]
> > Sent: 18 December 2017 17:55
> > To: kcoyle@kcoyle.net; public-dxwg-wg@w3.org
> > Subject: RE: Sample DCAT files
> >
> > http://data.sepa.org.uk/metadata/datacatalog.html has details of an
> actual
> >
> > -----Original Message-----
> > From: Karen Coyle [mailto:kcoyle@kcoyle.net]
> > Sent: 18 December 2017 16:48
> > To: public-dxwg-wg@w3.org
> > Subject: Sample DCAT files
> >
> > Would it be useful to gather a (reasonable) number of actual DCAT
> catalog/dataset files to accompany the list of APs? It occurs to me that
> seeing some actual files might inform the DCAT work.
> > --
> > Karen Coyle
> > kcoyle@kcoyle.net http://kcoyle.net
> > m: 1-510-435-8234 <(510)%20435-8234> (Signal)
> > skype: kcoylenet/+1-510-984-3600 <(510)%20984-3600>
> >
> >
> > ______________________________________________________________________
> > This email has been scanned by the Symantec Email Security.cloud service.
> > For more information please visit http://www.symanteccloud.com
> ______________________________________________________________________
> >
> >
> *******************************************************************************************************************************
> > This email has been received from an external party and has been swept
> for the presence of computer viruses.
> >
> *******************************************************************************************************************************
> >
> >
> > **********************************************************************
> > This e-mail (and any files or other attachments transmitted with it) is
> intended solely for the attention of the addressee(s). Unauthorised use,
> disclosure, storage, copying or distribution of any part of this e-mail is
> not permitted. If you are not the intended recipient please destroy the
> email, remove any copies from your system and inform the sender immediately
> by return.
> >
> > Communications with the Scottish Government may be monitored or recorded
> in order to secure the effective operation of the system and for other
> lawful purposes. The views or opinions contained within this e-mail may not
> necessarily reflect those of the Scottish Government.
> >
> >
> > Tha am post-d seo (agus faidhle neo ceanglan còmhla ris) dhan neach neo
> luchd-ainmichte a-mhàin. Chan eil e ceadaichte a chleachdadh ann an dòigh
> sam bith, a’ toirt a-steach còraichean, foillseachadh neo sgaoileadh, gun
> chead. Ma ’s e is gun d’fhuair sibh seo gun fhiosd’, bu choir cur às dhan
> phost-d agus lethbhreac sam bith air an t-siostam agaibh agus fios a
> leigeil chun neach a sgaoil am post-d gun dàil.
> >
> > Dh’fhaodadh gum bi teachdaireachd sam bith bho Riaghaltas na h-Alba air
> a chlàradh neo air a sgrùdadh airson dearbhadh gu bheil an siostam ag obair
> gu h-èifeachdach neo airson adhbhar laghail eile. Dh’fhaodadh nach  eil
> beachdan anns a’ phost-d seo co-ionann ri beachdan Riaghaltas na h-Alba.
> > **********************************************************************
> >
> >
> >
> >
> >
>
> --
> Karen Coyle
> kcoyle@kcoyle.net http://kcoyle.net
> m: 1-510-435-8234 <(510)%20435-8234> (Signal)
> skype: kcoylenet/+1-510-984-3600 <(510)%20984-3600>
>
>
>