Fantastic MediaWikis and How to Maintain Them - track on Wikimedia Hackathon 2017 in Vienna

1. www.kdz.or.atwww.kdz.or.at
The Vienna History Wiki –
a large Semantic MediaWiki
May 19th, 2017
Fantastic MediaWikis
and How to Maintain Them
Bernhard Krabina

2. www.kdz.or.at
Introduction
 KDZ – Centre for Public
Administration Research
 Open Knowledge –
Austrian Chapter
 Semantic MediaWiki
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3. www.kdz.or.at
The Vienna History Wiki
https://www.wien.gv.at/wiki

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Why is it special?
 Process
 digitizing a printed encyclopedia
 Governance
 scholarly wiki
 Open Government
 changes administrative processes
 Semantic
 stores facts inside the wiki
 Open Data
 data can be exported
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5. www.kdz.or.at
Historical Encyclopedia of Vienna
 six-volume encyclopedia "Historisches Lexikon
Wien" 1994-2004 edited by Felix Czeike
 Last volume (6)
was an update
volume, released
2004
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Wiki ↓ Original→
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Governance: editorial team
External Users:
 Jewish Museum Vienna
 Association for the History of Vienna
 Austrian Institute of Historical Research
 Centre for Environmental History, Vienna
 Austrian Mediathek
 ~ 800 Citizens
 Core Team
 Municipal and Provincial Archives
of Vienna (MA8)
 Vienna City Library (MA 9)

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Memorial day index
on paper for 2014 online since 2016
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Encyclopedia of street names
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Semantic MediaWiki
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Form based data entry
(Semantic Forms)
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„Bennant nach“ =
„named after“
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{{#ask:…}} query for pages named
after „Sigmund Freud“
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List all pages of Category:Person
with Birthyear::1856 and
Sex::male

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Data on a timeline, Places on a map
 Using Basemap.at
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RDF/JSON export
= Open Data!
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Semantic MediaWiki
 leaves your MediaWiki installation intact
 no patching, just a (bunch of) MW extension(s)
 already existing unstructured content can stay as it is or be
transformed
 gives you all the tools you need for a
collaborative web database
 entering data and text
 representing/visualising data and text within the wiki
 re-use/export data outside the wiki
 everything is done through configuration
 Attributes, Forms, Templates, Filters… are wiki pages
 Queries, parsing, “programming” via Wikitext
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> 40 different „result formats“
|format=table |format=csv |format=calendar...
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Other features
 Widgets for embedding Videos
 Wien.at
 Mediathek.at
 YoutTube
 Image Annotation
 Extension:ImageMap
 Data export and import
 Extension:Data_Transfer , e. g. list of deceased persons
 Semantic Glossary
 Installed, but not used yet
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20. www.kdz.or.at
Outlook
 Data-Import from a
research project for
Memorial Signs
 Politics of Remembrance
and the Transition of
Public Spaces. (POREM)
 Improved version of
filtered format for a filter
based map view
 Responsive Skin:
Chameleon
 SW-Upgrade
 MW 1.23.14 -> 1.27.x
 SMW 2.3.1 -> 2.5.x
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21. www.kdz.or.at
Challenges
 Performance!
 especially large queries
 Very limited access to production server
 runJobs.php only run once a day at 22:00, $wgJobRunRate=0
 SW-Upgrades are expensive
 external tests: performance/security – no code reviews
 see what has been „officially approved“
https://www.wien.gv.at/wiki/index.php?title=Spezial:Version
 https://github.com/JeroenDeDauw/Maps/ needs some love 
 Data integration in official
Vienna Map
 https://www.wien.gv.at/kulturportal/public/
 Extension:External_Data
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Proposal for hack days:
Test new filtered format - map
 Install Semantic Result Formats with composer
 Change to directory .../extensions/SemanticResultFormats
 git pull https://github.com/s7eph4n/SemanticResultFormats.git filtered
 Change in MW install directory:
composer dump-autoload
 New view „map“ and filter „number“ should be available in filtered result format
 Basic documentation
https://github.com/s7eph4n/SemanticResultFormats/blob/filtered/formats/filtered/README.md
 This should work
{{#ask:[[SomeCondition]]
|? SomePrintout |+filter=number
|? Position
|format=filtered
|views=map
|map view marker position property=Position
}}
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SMW Austria community
https://www.meetup.com/de-DE/Semantic-MediaWiki-Austria/
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Contact
4. Oktober 2012 · Seite 24
Bernhard Krabina
 krabina@kdz.or.at
 www.kdz.or.at
 @krabina