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Knowledge Organization with Wikipedia – Joining the Free Encyclopaedia and Digital Libraries Jakob Voss Wikimedia Deutschland e.V. / Common Library Network (GBV) 5 th NKOS Workshop, Alicante September 21, 2006. CC-SA-2.5. [[ Outline ]]. Wikipedia Wikipedia\'s Category system Mapping

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Knowledge Organizationwith Wikipedia –Joining the Free Encyclopaedia and Digital Libraries

Jakob VossWikimedia Deutschland e.V. /Common Library Network (GBV)

5th NKOS Workshop, Alicante

September 21, 2006

CC-SA-2.5

Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006

outline
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Outline]]
  • Wikipedia
  • Wikipedia\'s Category system
  • Mapping
  • Indexing with Wikipedia articles
  • Summary
  • Learn from Wikipedia
w hat wikipedia is
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[What Wikipedia is]]
  • Collaborative edited
  • Free Content
  • Encyclopaedias
  • ~5 million articles, >50.000 editors
  • 230 languages (~50 with > 10.000)
  • Non-commercial, no ads
  • TOP 16 website by access
how wikipedia is created
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[How Wikipedia is created]]

1) Find something to improve

2) Do it right

3) Let other people improve it

wikipedia categories
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Wikipedia categories]]
  • Tagging by linking[[Categorie:Information Science]][[Category:Belgion Inventor]]...
  • Open for all
  • Blind tagging
  • No aggregation (set-model)
  • Multi-hierarchical relations
  • High connectivity

Example: http://en.wikipedia.org/wiki/Paul_Otlet

category system as kos
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Category system as KOS]]

Collaboratively edited, general thesaurus

(en, Jan 2006: 91,502 categories, 923,196 articles)

Voss (2006): Collaborative thesaurus tagging the Wikipedia way

http://arxiv.org/abs/cs.IR/0604036

mapping categories
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Mapping categories]]
  • Articles linked via interlanguage links[[en:Paul_Otlet]], [[en:Paul_Otlet]]…
  • Categories linked via interlanguage links
  • Inter-Wiki mapping with cooccurences http://tools.wikimedia.de/~voj/cgi-bin/cocat?wikilang=en&wikifam=.wikipedia.org&cat=Information_science
mapping categories and kos
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Mapping categories and KOS]]
  • Manually add links to other KOS
  • [[Kategorie:Informetrie]] <->JITA class BBbibliometric methodshttp://de.wikipedia.org/wiki/Kategorie:Informetrie
  • Not very visible
  • Difficult to judge
mapping articles and kos
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Mapping articles and KOS]]
  • Links to authority file PND(German National Library)

{{PND|119510928}}

  • De, Aug 2006:>100.000 biographies~ 20% with PND
  • Plans with GKD(corporate bodies)
  • 1:1, 1:n, n:m

Wikipedia

article

PND

...

Library

Museum

indexing and the semantic web
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Indexing and the Semantic Web]]

Redirects & Disambiguation=> Controlled vocabulary

Stable referable concepts for indexing (indentity and reference in SW)

Proposed by Bunescu & Pasça (2006), Fernandéz-García et al (2005), Hepp et al (2006), Krizhanovsky (2006),: Synonym search in Wikipedia: Synarcher, Lüer (2006), Voss (2006)…

Solution: Published Subject IdentifiersPepper (2006)

Changes and stable version URI/URL

semantic wikipedia
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Semantic Wikipedia]]

Typed links: [[is capital of::England]]=> RDF triples

Völkel et al (2006): Semantic Wikipedia. WWW2006 conference

join wikipedia and kos
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Join Wikipedia and KOS]]

KOS

WikipediaContent

Wikipedia

KOS

Linking and Mapping

Enrichment

Portal, Meta-KOS…

Wikipedia

=

KOS

KOS

Wikipedia

Combination

Integration

learn from wikipedia
Jakob Voss : Knowledge Organization with Wikipedia. 5th NKOS Workshop, Sep 21,2006[[Learn from Wikipedia]]

Free you research (open access)

Free your data (verifyability)

Free your code (open source)

Free your KOS (interoperability)

Full references are listed at http://bibliography.wikimedia.de

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