Marius Hoch asked last month:
is anyone using the Wikidata entity dump dcatap.rdf at
https://dumps.wikimedia.org/wikidatawiki/entities/dcatap.rdf?
It is very rarely used and is thus causing us a (probably) undue
maintenance burden, because of which we plan to remove it.
If anyone is making use of it, please speak up so that we can keep it or
find a viable alternative.
Well, it is poorly documented maybe this is a reason for its low use? It
should be mentioned at:
https://www.wikidata.org/wiki/Wikidata:Database_download
I just extended the DCAT-AP item and did some digging into the DCAT-AP
community:
http://www.wikidata.org/entity/Q28600460
DCAT-AP is an application profile (aka "best practice") of the W3C Data
Catalog Vocabulary, so it's not only to make happy European data catalog
registries. The main use case is going to be a search across multiple
open data catalogs (similar to
https://datahub.io/ / CKAN but only
metadata) but by now it seems to be used more to submit data to local
registries in more than 15 European countries (see this presentation
from last yeat:
https://www.w3.org/2016/11/sdsvoc/brecht).
Anyway, it's a good idea to describe Wikidata dumps in machine readble
form so why not stick with the current standard?
How about adding the RDF to
query.wikidata.org so we can get a current
list?
PREFIX dcat: <http://www.w3.org/ns/dcat#>
PREFIX dct: <http://purl.org/dc/terms/>
SELECT ?url ?date ?size WHERE {
<https://www.wikidata.org/about#catalog> dcat:dataset ?dump .
?dump dcat:distribution [
dct:format "application/json" ;
dcat:downloadURL ?url ;
dcat:issued ?date ;
dcat:byteSize ?bytes
] .
}
I created a Phabricator issue for this request:
https://phabricator.wikimedia.org/T178978
Cheers,
Jakob
--
Jakob Voß <jakob.voss(a)gbv.de>
Verbundzentrale des GBV (VZG) / Common Library Network
Platz der Goettinger Sieben 1, 37073 Göttingen, Germany
+49 (0)551 39-10242,
http://www.gbv.de/