Re: Announcing the release of the Wikidata Query Service

On 08.09.2015 18:50, Olivier Rossel wrote:
> Do you plan to add this endpoint on datahub?
> That would make it monitored by Sparqles and indexed by search.datao.net

Yes, this should be done. Currently tracked at 
https://phabricator.wikimedia.org/T85444

Markus

>
> Envoyé de mon iPhone
>
> Le 8 sept. 2015 à 18:09, Markus Kroetzsch <markus.kroetzsch@tu-dresden.de> a écrit :
>
>> On 08.09.2015 17:52, Miguel wrote:
>>> Great news!
>>>
>>> I see that the UI uses a public (and CORS-enabled)SPARQL endpoint
>>> available at
>>> https://query.wikidata.org/bigdata/namespace/wdq/sparql
>>>
>>> I don't see this SPARQL endpoint documented as such, but I hope it will
>>> be kept publicly available.
>>
>> Indeed, I should have given some more documentation -- details in this email. The endpoint you found is documented here:
>>
>> https://www.mediawiki.org/wiki/Wikidata_query_service/User_Manual
>>
>> If it should ever change, I am sure WMF can set up a redirect to keep links working.
>>
>> I also should have pointed explicitly to the list of current example queries. You can do some very interesting things with this data (and with SPARQL, of course ;-), but some may not be obvious if you are not familiar with our data:
>>
>> https://www.mediawiki.org/wiki/Wikibase/Indexing/SPARQL_Query_Examples
>>
>> Short guideline for getting started with simple queries:
>>
>> * Use wd:Q1234 (<http://www.wikidata.org/entity/Q1234>) to refer to an item ("data page") on Wikidata. You can find an item id, e.g., by browsing Wikipedia and clicking the link "Wikidata item" on the left.
>>
>> * Use wdt:P1234 (<http://www.wikidata.org/prop/direct/P1234>) to refer to *simplified* direct versions of Wikidata properties. Property ids can be searched for on Wikidata, or browsed for by clicking property names on any item page.
>>
>> "Simplified" means that there is a direct connection from subject to property value -- no references (provenance), no qualifiers (statement annotations); that the value is simplified (e.g. no precision information for numbers); and that only data for the statements of the highest rank will be included (e.g., only current population numbers, no historic ones).
>>
>> * For how to access the full data with all details, see the example query for "largest cities with a female mayor" and read the documentation:
>>
>> https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Dump_Format
>>
>> It also helps to look at some Wikidata pages to get an idea of what is there. The showcase items give a good overview:
>>
>> https://www.wikidata.org/wiki/Wikidata:Showcase_items
>>
>> Cheers,
>>
>> Markus
>>
>>
>>>
>>>
>>> Il giorno mar 8 set 2015 alle ore 05:28 Olivier Rossel
>>> <olivier.rossel@gmail.com <mailto:olivier.rossel@gmail.com>> ha scritto:
>>>
>>>     Brillant!!!
>>>
>>>     Envoyé de mon iPhone
>>>
>>>     Le 8 sept. 2015 à 10:03, Markus Kroetzsch
>>>     <markus.kroetzsch@tu-dresden.de
>>>     <mailto:markus.kroetzsch@tu-dresden.de>> a écrit :
>>>
>>>      > Dear SPARQLers,
>>>      >
>>>      > The Wikimedia Foundation has just announced its first official
>>>     live query service for Wikidata, based on SPARQL.
>>>      >
>>>      > Cheers,
>>>      >
>>>      > Markus
>>>      >
>>>      >
>>>      > -------- Forwarded Message --------
>>>      > Subject:    [Wikidata] Announcing the release of the Wikidata
>>>     Query Service
>>>      > Date:    Mon, 7 Sep 2015 15:29:02 -0700
>>>      > From:    Dan Garry <dgarry@wikimedia.org
>>>     <mailto:dgarry@wikimedia.org>>
>>>      > Reply-To:    Discussion list for the Wikidata project.
>>>      > <wikidata@lists.wikimedia.org <mailto:wikidata@lists.wikimedia.org>>
>>>      > To: wikidata-l@lists.wikimedia.org
>>>     <mailto:wikidata-l@lists.wikimedia.org>
>>>      >
>>>      >
>>>      >
>>>      > The Discovery Department at the Wikimedia Foundation is pleased to
>>>      > announce the release of the Wikidata Query Service
>>>      > <https://www.mediawiki.org/wiki/Wikidata_query_service>! You can find
>>>      > the interface for the service at https://query.wikidata.org.
>>>      >
>>>      > The Wikidata Query Service is designed to let users run queries
>>>     on the
>>>      > data contained in Wikidata. The service uses SPARQL
>>>      > <https://en.wikipedia.org/wiki/SPARQL> as the query language. You can
>>>      > see some example queries in the user manual
>>>      > <https://www.mediawiki.org/wiki/Wikidata_query_service/User_Manual>.
>>>      >
>>>      > Right now, the service is still in beta. This means that our goal
>>>      >
>>>     <https://www.mediawiki.org/wiki/Wikimedia_Engineering/2015-16_Q2_Goals#Wikidata_Query_Service>
>>>     is
>>>      > to monitor of the service usage and collect feedback about what
>>>     people
>>>      > think should be next. To do that, we've created the Wikidata Query
>>>      > Service dashboard <https://searchdata.wmflabs.org/wdqs/> to track
>>>     usage
>>>      > of the service, and we're in the process
>>>      > <https://phabricator.wikimedia.org/T111403> of setting up a feedback
>>>      > mechanism for users of the service. Once we've got monitored the
>>>     usage
>>>      > of the service for a while and got user feedback, we'll decide on
>>>     what's
>>>      > next for development of the service.
>>>      >
>>>      > If you have any feedback, suggestions, or comments, please do send an
>>>      > email to the Discovery Department's public mailing list,
>>>      > wikimedia-search@lists.wikimedia.org
>>>     <mailto:wikimedia-search@lists.wikimedia.org>
>>>      > <mailto:wikimedia-search@lists.wikimedia.org
>>>     <mailto:wikimedia-search@lists.wikimedia.org>>.
>>>      >
>>>      > Thanks,
>>>      > Dan
>>>      >
>>>      > --
>>>      > Dan Garry
>>>      > Lead Product Manager, Discovery
>>>      > Wikimedia Foundation
>>>      >
>>>      >
>>>      > <Attached Message Part>
>>
>> --
>> Markus Kroetzsch
>> Faculty of Computer Science
>> Technische Universität Dresden
>> +49 351 463 38486
>> http://korrekt.org/
>

-- 
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486
http://korrekt.org/

Received on Tuesday, 8 September 2015 18:56:27 UTC