Wikidata March 2017

wikidata@lists.wikimedia.org

54 participants
43 discussions

We plan to drop the wb_entity_per_page table
by hoo 01 Jun '17

01 Jun '17

Hey folks, we plan to drop the wb_entity_per_page table sometime soon[0], because it is just not required (as we will likely always have a programmatic mapping from entity id to page title) and it does not supported non -numeric entity ids as it is now. Due to this removing it is a blocker for the commons metadata. Is anybody using that for their tools (on tool labs)? If so, please tell us so that we can give you instructions and a longer grace period to update your scripts. Cheers, Marius [0]: https://phabricator.wikimedia.org/T95685

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Problems installing Wikibase repository and client in the same site
by Iván Hernández Cazorla 15 May '17

15 May '17

Hi everyone! I am trying to configure Wikibase in a wiki that I have installed. I want to use both, repository and client. I have followed installation instructions <https://www.mediawiki.org/wiki/Wikibase/Installation>, but I think that I made something wrong because now I have several errors in my wiki. If I access to any page of the site I see "Internal error", the error and the backtrace. For example, in the mainpage: [e837b2d7a6fcc7e1edaead2a] /Portada Error from line 240 of /[PATH]/extensions/Wikibase/client/includes/Store/Sql/DirectSqlStore.php: Class 'Wikimedia\Rdbms\SessionConsistentConnectionManager' not found It also happens when I try to edit any page in main namespace. Then, another error is when I visit the page Special:CreateItem: [1d904eb6d5d155e0d0c710ae] /Especial:CreateItem TypeError from line 32 of /[PATH]/extensions/Wikibase/repo/includes/Store/Sql/SqlIdGenerator.php: Argument 1 passed to Wikibase\SqlIdGenerator::__construct() must be an instance of Wikimedia\Rdbms\LoadBalancer, instance of LoadBalancer given, called in/[PATH]/extensions/Wikibase/repo/includes/Store/Sql/SqlStore.php on line 298 You can check my settings for Wikibase in that gist <https://gist.github.com/distriker/6a387d967a7b48e36f41055f00c3c366>. But I have made is config both extensions in the same file and the namespaces like as explain the advanced configuration <https://www.mediawiki.org/wiki/Extension:Wikibase_Repository#Advanced_Confi…>. I have configurated PHP 7. Any idea? Thanks in advance! Regards, Iván -- Iván Hernández Cazorla. Estudiante del Grado de Historia en la *Universidad de Las Palmas de Gran Canaria*. Socio de *Wikimedia España*. Sitio web personal <http://distriker.com>.

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Comparisons between DBpedia and Wikidata
by Gerard Meijssen 18 Apr '17

18 Apr '17

Hoi, Much of the content of DBpedia and Wikidata have the same origin; harvesting data from a Wikipedia. There is a lot of discussion going on about quality and one point that I make is that comparing "Sources" and concentrating on the differences particularly where statements differ is where it is easiest to make a quality difference. So given that DBpedia harvests both Wikipedia and Wikidata, can it provide us with a view where a Wikipedia statement and a Wikidata statement differ. To make it useful, it is important to subset this data. I will not start with 500.000 differences but I will begin when they are about a subset that I care about. When I care about entries for alumni of a university, I will consider curating the information in question. Particularly when I know the language of the Wikipedia. When we can do this, another thing that will promote the use of a tool like this is when regularly (say once a month) numbers are stored and trends are published. How difficult is it to come up with something like this. I know this tool would be based on DBpedia but there are several reasons why this is good. First it gives added relevance to DBpedia (without detracting from Wikidata) and secondly as DBpedia updates on RSS changes for several Wikipedias, the effect of these changes is quickly noticed when a new set of data is requested. Please let us know what the issues are and what it takes to move forward with this, Does this make sense? Thanks, GerardM http://ultimategerardm.blogspot.nl/2017/03/quality-dbpedia-and-kappa-alpha-…

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NLP text corpus annotated with Wikidata entities?
by Samuel Printz 13 Apr '17

13 Apr '17

Hello everyone, I am looking for a text corpus that is annotated with Wikidata entites. I need this for the evaluation of an entity linking tool based on Wikidata, which is part of my bachelor thesis. Does such a corpus exist? Ideal would be a corpus annotated in the NIF format [1], as I want to use GERBIL [2] for the evaluation. But it is not necessary. Thanks for hints! Samuel [1] https://site.nlp2rdf.org/ [2] http://aksw.org/Projects/GERBIL.html

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Next IRC office hour on April 5th
by Léa Lacroix 12 Apr '17

12 Apr '17

Hello, Our next Wikidata IRC office hour will take place on April 5th, 16:00 UTC <https://www.timeanddate.com/worldclock/meetingdetails.html?year=2017&month=…> (18:00 in Berlin), on the channel #wikimedia-office. During one hour, you'll be able to chat with the development team about the past, current and future projects, and ask any question you want. See you there, <http://webchat.freenode.net/?channels=#wikimedia-office> -- 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.

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Wikimania 2017
by Léa Lacroix 06 Apr '17

06 Apr '17

Hello all, The international Wikimedia conference will settle in Montreal (Q340) <https://www.wikidata.org/wiki/Q340> on August 11-13. As the call for submission is about to start, let's talk about what you would like to see happening about Wikidata. Do you have a project of submissing a talk, workshop, meetup? Which topics would you like to talk about with the development team? Let's talk about our ideas on Wikidata:Wikimania 2017 <https://www.wikidata.org/wiki/Wikidata:Wikimania_2017>! 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.

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Significant change: new data type for geoshapes
by Léa Lacroix 03 Apr '17

03 Apr '17

Hello all, We’ve been working on a new data type that allows you to link to the *geographical shapes* that are now stored on Commons. This data type will be deployed on Wikidata on *April 17th*. This data type refers to the geographical shapes that are enabled on Wikimedia Commons since the beginning of this year. Here you can find more information about this <https://www.mediawiki.org/wiki/Maps>. The property creators will be able to create properties with this geoshape data type by selecting “Geographical shape” in the data type list. When the property is created, you can use it in statements, and when filling the value, if you start typing a string, you can choose the name of a geoshape in the list of what exists on Commons. [image: Screenshot test geoshape in Wikidata.png] <https://commons.wikimedia.org/wiki/File:Screenshot_test_geoshape_in_Wikidat…> One thing to note: We currently do not export statements that use this datatype to RDF. They can therefore not be queried in the Wikidata Query Service. The reason is that we are still waiting for geoshapes to get stable URIs. This is handled in this ticket <https://phabricator.wikimedia.org/T161527>. Before the deployment, you can test it on http://test.wikidata.org (see for example the property “geotest” on Q22 <https://test.wikidata.org/wiki/Q22>). If you have any question, feel free to ask! Cheers, -- 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.

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Hello Wikidata!
by Glorian Yapinus 02 Apr '17

02 Apr '17

Hi folks! My name is Glorian Yapinus, but you can simply call me Glorian ;) . For the next 6 months, I will assist Lydia in supporting you all. Regarding to my educational background, I hold a bachelor's degree in Information Technology and currently, I am working on my Master's in Software Engineering and Management. I am a warm and nice person. So, please do not hesitate to reach out to me for any queries :-) Last but not least, I am looking forward to working with you. Cheers, Glorian -- Glorian Yapinus Product Management Intern for Wikidata Imagine a world, in which every single human being can freely share in the sum of all knowledge. That‘s our commitment. Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V. Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter der Nummer 23855 B. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/029/42207.

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Federation in the Wikidata Query Service
by Stas Malyshev 01 Apr '17

01 Apr '17

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 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 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 [2] http://nomisma.org/ [3] http://data.cervantesvirtual.com/about [4] http://datos.bne.es/sparql?help=intro [5] https://www.mediawiki.org/wiki/Wikidata_query_service/User_Manual#Federation -- Stas Malyshev smalyshev(a)wikimedia.org

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Monumental – cultural heritage monuments from wikidata in pretty
by Paweł Marynowski 31 Mar '17

31 Mar '17

Hi all, I'm happy to introduce yet another Wikidata data consumer :). It's called monumental and it's designed to browse, add and display all information about cultural heritage monuments we have in Wikidata. You can think of it as Reasonator, Wiki Loves Monuments map and wikidata games combined :). App is installed on labs, feel free to take a look and fiddle with it: https://tools.wmflabs.org/monumental/#/ Application is currently on early stage, much more features will be introduced soon. On this page you can see plans for this year: https://www.wikidata.org/wiki/Wikidata:Tools/Monumental Cheers, Paweł and Stephen, authors -- *Paweł Marynowski* Stowarzyszenie Wikimedia Polska http://pl.wikimedia.org/

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Wikidata March 2017