CICM 2016, OpenMath workshop Displaying formulae in Wikimedias - - PowerPoint PPT Presentation

cicm 2016 openmath workshop displaying formulae in
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CICM 2016, OpenMath workshop Displaying formulae in Wikimedias - - PowerPoint PPT Presentation

CICM 2016, OpenMath workshop Displaying formulae in Wikimedias Central Data Storage Wikidata Moritz Schubotz with material from Katie Filbert 31/07/2016 www.formulasearchengine.com 1 What is Wikidata? repository of the world's


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Moritz Schubotz with material from Katie Filbert

31/07/2016 www.formulasearchengine.com 1

CICM 2016, OpenMath workshop Displaying formulae in Wikimedia’s Central Data Storage Wikidata

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  • repository of the world's knowledge
  • structured database anyone can read and edit
  • multi-lingual
  • free and open source data (CC-0) and software

What is Wikidata?

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Wikidata supports Wikimedia projects

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> 20 M Items >88 M Statements

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New York City

www.wikidata.org/wiki/Q60

Example item

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Example item

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Example statements

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Available data types for properties

  • Commons media (image, flag image, video, …)
  • Globe coordinate (coordinate location, …)
  • Identifier (geonames id, VIAF identifier, ...)
  • Math (defining formula)
  • Monolingual text (motto text, official name, …)
  • Quantity - optionally, with units (area, population, …)
  • String (formatter URL, serials ordinal, …)
  • Time (date of birth, point in time, …)
  • URL (official website, …)
  • Wikibase item (instance of, head of government, …)
  • Wikibase property (inverse of, subproperty of, …)
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https://www.wikidata.org/w/api.php

Wikidata API

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Wikipedia integration

https://en.wikipedia.org/wiki/Barack_Obama

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Data used on Wikipedia

and Wikimedia sister projects (e.g. Wikivoyage)

  • Language links
  • Property parser function

–{{#property:P17}} –{{#property:country}} –{{#property:P18|from=Q147}}

  • Lua
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Property parser function

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Query service

https://query.wikidata.org

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Example Applications

All generated using the data stored in Wikidata https://www.wikidata.org/wiki/Wikidata:Tools

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Histropedia

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Math

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Math

  • Introduced in Feb 2016
  • More than 150 statements until today
  • 16/1987 theorems have the defining formula

property

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Get involved

  • https://www.wikidata.org/wiki/Wikidata:

WikiProject_Mathematics

  • Open questions:

– Import and exports formats – Content MathML – RDF and MathML – User interfaces – Consistency