Forwarding in case this is of interest to others.
Pine
( https://meta.wikimedia.org/wiki/User:Pine )
---------- Forwarded message ---------
From: Janna Layton <jlayton(a)wikimedia.org>
Date: Thu, Oct 10, 2019 at 9:58 PM
Subject: [Analytics] [Wikimedia Research Showcase] October 16, 2019 at 9:30
AM PDT, 16:30 UTC
To: <wikimedia-l(a)lists.wikimedia.org>, <analytics(a)lists.wikimedia.org>, <
wiki-research-l(a)lists.wikimedia.org>
Hi all,
The next Research Showcase will be live-streamed next Wednesday, October
16, at 9:30 AM PDT/16:30 UTC.
YouTube stream: https://www.youtube.com/watch?v=KZ35weAVlIU
As usual, you can join the conversation on IRC at #wikimedia-research. You
can also watch our past Research Showcases here:
https://www.mediawiki.org/wiki/Wikimedia_Research/Showcase
This month's presentations:
Elections Without Fake: Deploying Real Systems to Counter Misinformation
Campaigns
By Fabrício Benevenuto, Computer Science Department, Universidade Federal
de Minas Gerais (UFMG), Brazil
The political debate and electoral dispute in the online space during the
2018 Brazilian elections were marked by an information war. In order to
mitigate the misinformation problem, we created the project Elections
Without Fake <http://www.eleicoes-sem-fake.dcc.ufmg.br/> and developed a
few technological solutions able to reduce the abuse of misinformation
campaigns in the online space. Particularly, we created a system to monitor
public groups in WhatsApp and a system to monitor ads in Facebook. Our
systems showed to be fundamental for fact-checking and investigative
journalism, and are currently being used by over 150 journalists with
editorial lines and various fact-checking agencies.
More info on second talk by Francesca Spezzano to come
--
Janna Layton (she, her)
Administrative Assistant - Product & Technology
Wikimedia Foundation <https://wikimediafoundation.org/>
_______________________________________________
Analytics mailing list
Analytics(a)lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/analytics
Hello
I recently contributed to an example SPARQL query in the example page (
https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/example…
)
It is not displayed properly and it seems that this page is broken as none
of the latest examples in the page is displayed, starting with this one :
https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/example…
Hypothesis : I suspect this is due to the high number of the same
"Template:SPARQL" used in that same page.
Is this a known issue ? any way to fix this ?
Also, I can't find this query example in the query interface, when
searching for it. How/when is the query interface updated with the example
page ? is it related to the display problem in the page itself ?
Cheers
Thomas
--
*Thomas Francart* -* SPARNA*
Web de *données* | Architecture de l'*information* | Accès aux
*connaissances*
blog : blog.sparna.fr, site : sparna.fr, linkedin :
fr.linkedin.com/in/thomasfrancart
tel : +33 (0)6.71.11.25.97, skype : francartthomas
Is there any documentation of the number format used by the quantity type?
Bumped into this and had to implement the BCmath extension to handle the
number. The reason why I did it (except it was fun) is to handle some weird
unit conversions. By inspection I found there were numbers at Wikidata that
clearly could not be implemented as doubles, and testing a little I found
that this had to be implemented as some kind of big numbers. Lua does not
have big numbers, and using the numbers from quantity as a plain number
type is a coming disaster.
So, is there any documentation for the quantity format anywhere? I have not
found anything. I posted a task about it, and please add info there if you
know where some info can be found. I suspect the format just happen to be
the same as BC, and nobody really checked if the format was compatible, or…?
The BCmath extension can be found at
- https://www.mediawiki.org/wiki/Extension:BCmath
- https://github.com/jeblad/BCmath
There is a Vagrant role if anyone likes to test it out.
Dear List,
a colleague has asked me how she could generate a timeline with spans of time on the FactGrid wikibase. She wants to visualise to what extent Gotha's duke Ernest II was in Gotha - and to what extent he was actually elsewhere on journeys leaving it to his ministers to rule the country.
I made a test input with two properties on the Item for Ernest:
https://database.factgrid.de/wiki/Item:Q978
P316 is for journeys with beginning and end. P296 eill become more specific in order to generate itineraries.
I's be grateful for the SPARQL-Query that brought stretches of time for journeys on the timeline.
My thanks for any help,
Olaf
Dr. Olaf Simons
Forschungszentrum Gotha der Universität Erfurt
Schloss Friedenstein, Pagenhaus
99867 Gotha
Büro: +49-361-737-1722
Mobil: +49-179-5196880
Privat: Hauptmarkt 17b/ 99867 Gotha
Hello all,
The Wikidata and Wikibase ecosystem is a huge galaxy of exciting content,
tools, projects, powered by the communities as well as organisations
working with the software and the data. For seven years, people are
gathering, starting projects, developing tools, improving the editors'
workflows, filling various gaps, working all together to give more people
more access to more knowledge.
The *WikidataCon Award 2019* will reward the greatest projects in a variety
of categories. The awarded projects are selected by the WikidataCon Award
committee, based on nominations by the community. Everyone is invited to
participate and nominate one or several projects. The nomination process is
open until *October 7th*.
What we mean by *project*: a project can be a community gathering or other
initiative that led to great results (WikiProject, event, editathon…), a
tool (gadget, script, external tool…) or any other action that led to
improving Wikidata’s data, the workflow of its editors or the outreach.
To read more about the award and participate, please check out this page
<https://www.wikidata.org/wiki/Wikidata:WikidataCon_2019/Program/WikidataCon…>.
Thanks!
--
Léa Lacroix
Project Manager Community Communication for Wikidata
Wikimedia Deutschland e.V.
Tempelhofer Ufer 23-24
10963 Berlin
www.wikimedia.de
Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V.
Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter
der Nummer 23855 Nz. Als gemeinnützig anerkannt durch das Finanzamt für
Körperschaften I Berlin, Steuernummer 27/029/42207.
Hello
I understand the wikidata SPARQL label service only fetches the labels, but
does not allow to search/filter on them; labels are also available in
regulare rdfs:label on which a FILTER can be made.
However I would like to do full-text search over labels, to e.g. feed an
autocomplete search field, actually just like the usual top-right wikidata
search field does. I would also be interested to combine this with a
criteria on "instance of", to search only on instances of a given class.
Can I do that efficiently using the Wikidata SPARQL service ? or is there a
separate API I could use ? (exemple welcome)
Thanks
Thomas
--
*Thomas Francart* -* SPARNA*
Web de *données* | Architecture de l'*information* | Accès aux
*connaissances*
blog : blog.sparna.fr, site : sparna.fr, linkedin :
fr.linkedin.com/in/thomasfrancart
tel : +33 (0)6.71.11.25.97, skype : francartthomas
Dear Mr.,
I thank you for the query. This is absolutely useful to ameliorate data mining methods for Wikidata. I always said that Wikidata Query Service is still misused.
Yours Sincerely,
Houcemeddine Turki (he/him)
Medical Student, Faculty of Medicine of Sfax, University of Sfax, Tunisia
GLAM, Research and Education Coordinator, Wikimedia TN User Group
Member, Wiki Project Med
Member, WikiIndaba Steering Committee
Member, Wikimedia and Library User Group Steering Committee
____________________
+21629499418
-------- Message d'origine --------
De : Ettore RIZZA <ettorerizza(a)gmail.com>
Date : 2019/10/04 09:15 (GMT+01:00)
À : Discussion list for the Wikidata project <wikidata(a)lists.wikimedia.org>
Objet : Re: [Wikidata] Full-text / autocomplete search on labels
Hello Thomas,
You can perform a full text search with the API, but not yet with SPARQL AFAIK. However, it is possible to call the API in a SPARQL query. For example, here is a query<https://query.wikidata.org/#SELECT%20DISTINCT%20%3Fperson%20%3FpersonLabel%…> that looks for "human (Q5)" whose label contains the string "einst".
Hope this helps,
Ettore Rizza
On Fri, 4 Oct 2019 at 09:58, Thomas Francart <thomas.francart(a)sparna.fr<mailto:thomas.francart@sparna.fr>> wrote:
Hello
I understand the wikidata SPARQL label service only fetches the labels, but does not allow to search/filter on them; labels are also available in regulare rdfs:label on which a FILTER can be made.
However I would like to do full-text search over labels, to e.g. feed an autocomplete search field, actually just like the usual top-right wikidata search field does. I would also be interested to combine this with a criteria on "instance of", to search only on instances of a given class.
Can I do that efficiently using the Wikidata SPARQL service ? or is there a separate API I could use ? (exemple welcome)
Thanks
Thomas
--
Thomas Francart - SPARNA
Web de données | Architecture de l'information | Accès aux connaissances
blog : blog.sparna.fr<http://blog.sparna.fr>, site : sparna.fr<http://sparna.fr>, linkedin : fr.linkedin.com/in/thomasfrancart<https://fr.linkedin.com/in/thomasfrancart>
tel : +33 (0)6.71.11.25.97, skype : francartthomas
_______________________________________________
Wikidata mailing list
Wikidata(a)lists.wikimedia.org<mailto:Wikidata@lists.wikimedia.org>
https://lists.wikimedia.org/mailman/listinfo/wikidata
Dear Mr.,
I thank you for your efforts. I ask if a tutorial about merging Wikidata API with Wikidata Query Service or about doing federated queries with Wikidata Query Service can be done.
Yours Sincerely,
Houcemeddine Turki (he/him)
Medical Student, Faculty of Medicine of Sfax, University of Sfax, Tunisia
GLAM, Research and Education Coordinator, Wikimedia TN User Group
Member, Wiki Project Med
Member, WikiIndaba Steering Committee
Member, Wikimedia and Library User Group Steering Committee
____________________
+21629499418
-------- Message d'origine --------
De : "Houcemeddine A. Turki" <turkiabdelwaheb(a)hotmail.fr>
Date : 2019/10/04 12:09 (GMT+01:00)
À : Ettore RIZZA <ettorerizza(a)gmail.com>, Discussion list for the Wikidata project <wikidata(a)lists.wikimedia.org>
Objet : Re: [Wikidata] Full-text / autocomplete search on labels
Dear Mr.,
I thank you for the query. This is absolutely useful to ameliorate data mining methods for Wikidata. I always said that Wikidata Query Service is still misused.
Yours Sincerely,
Houcemeddine Turki (he/him)
Medical Student, Faculty of Medicine of Sfax, University of Sfax, Tunisia
GLAM, Research and Education Coordinator, Wikimedia TN User Group
Member, Wiki Project Med
Member, WikiIndaba Steering Committee
Member, Wikimedia and Library User Group Steering Committee
____________________
+21629499418
-------- Message d'origine --------
De : Ettore RIZZA <ettorerizza(a)gmail.com>
Date : 2019/10/04 09:15 (GMT+01:00)
À : Discussion list for the Wikidata project <wikidata(a)lists.wikimedia.org>
Objet : Re: [Wikidata] Full-text / autocomplete search on labels
Hello Thomas,
You can perform a full text search with the API, but not yet with SPARQL AFAIK. However, it is possible to call the API in a SPARQL query. For example, here is a query<https://query.wikidata.org/#SELECT%20DISTINCT%20%3Fperson%20%3FpersonLabel%…> that looks for "human (Q5)" whose label contains the string "einst".
Hope this helps,
Ettore Rizza
On Fri, 4 Oct 2019 at 09:58, Thomas Francart <thomas.francart(a)sparna.fr<mailto:thomas.francart@sparna.fr>> wrote:
Hello
I understand the wikidata SPARQL label service only fetches the labels, but does not allow to search/filter on them; labels are also available in regulare rdfs:label on which a FILTER can be made.
However I would like to do full-text search over labels, to e.g. feed an autocomplete search field, actually just like the usual top-right wikidata search field does. I would also be interested to combine this with a criteria on "instance of", to search only on instances of a given class.
Can I do that efficiently using the Wikidata SPARQL service ? or is there a separate API I could use ? (exemple welcome)
Thanks
Thomas
--
Thomas Francart - SPARNA
Web de données | Architecture de l'information | Accès aux connaissances
blog : blog.sparna.fr<http://blog.sparna.fr>, site : sparna.fr<http://sparna.fr>, linkedin : fr.linkedin.com/in/thomasfrancart<https://fr.linkedin.com/in/thomasfrancart>
tel : +33 (0)6.71.11.25.97, skype : francartthomas
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https://lists.wikimedia.org/mailman/listinfo/wikidata