Cross-posting FYI.
Cheers,
Marco
-------- Forwarded Message --------
Subject: Re: [Wikidata] Federation in the Wikidata Query Service
Date: Fri, 31 Mar 2017 06:48:39 +0200
From: Gerard Meijssen <gerard.meijs...@gmail.com>
Reply-To: Discussion list for the Wikidata project.
<wikid...@lists.wikimedia.org>
To: Discussion list for the Wikidata project.
<wikid...@lists.wikimedia.org>
Hoi,
Would it be possible to include DBpedia as a matter of urgency. They
added the cc-by-sa because at that time wisdom was to have the same
license as Wikipedia to prevent upset people. Given the strong relation
between what we do in our projects and what they do in theirs it is easy
to come up with user scenarios that will benefit both our projects.
Thanks,
GerardM
On 31 March 2017 at 02:30, Stas Malyshev <smalys...@wikimedia.org
<mailto:smalys...@wikimedia.org>> wrote:
Hello,
We've been working on integrating some external databases in the Query
Service endpoint. You can now query in the same time Wikidata and other
free knowledge bases. For now, only databases released under the most
compatible licenses, such as CC0, are available. Currently available:
* Europeana[1], the huge collection of cultural data, which is entirely
available in public domain.
* Nomisma.org[2], a collaborative project to provide stable digital
representations of numismatic concepts.
* Biblioteca Virtual Miguel de Cervantes [3]
* Biblioteca Nacional de España [4]
Soon, we plan to also enable querying other databases, with licenses
such as CC-BY. We plan to continue add endpoints based on user
requests.
The currently available endpoints are listed here:
https://query.wikidata.org/copyright.html
<https://query.wikidata.org/copyright.html>
The documentation about the feature (which will also be updated when we
add more endpoints) is in the Query Service User Manual [5].
Here are some examples to understand how to build such queries:
https://www.wikidata.org/wiki/User:Smalyshev_(WMF)/Federation
<https://www.wikidata.org/wiki/User:Smalyshev_(WMF)/Federation>
Thanks a lot for your input! If you have any question or problem, feel
free to contact me.
[1] http://labs.europeana.eu/api/linked-open-data-sparql-endpoint
<http://labs.europeana.eu/api/linked-open-data-sparql-endpoint>
[2] http://nomisma.org/
[3] http://data.cervantesvirtual.com/about
<http://data.cervantesvirtual.com/about>
[4] http://datos.bne.es/sparql?help=intro
<http://datos.bne.es/sparql?help=intro>
[5]
https://www.mediawiki.org/wiki/Wikidata_query_service/User_Manual#Federation
<https://www.mediawiki.org/wiki/Wikidata_query_service/User_Manual#Federation>
--
Stas Malyshev
smalys...@wikimedia.org <mailto:smalys...@wikimedia.org>
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