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Wikipedia – The Free Encyclopedia

Wikipedia – The Free Encyclopedia. Petr Kadlec <petr.kadlec@gmail.com> http://cs.wikipedia.org/wiki/User:Mormegil. 16 th Annual Conference of EINIRAS , 25/09/2006. What is Wikipedia?. Freely licensed encyclopedia Available in more than 100 languages Czech (cs), English (en), de, fr, …

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Wikipedia – The Free Encyclopedia

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  1. Wikipedia – The Free Encyclopedia Petr Kadlec <petr.kadlec@gmail.com> http://cs.wikipedia.org/wiki/User:Mormegil 16th Annual Conference of EINIRAS, 25/09/2006

  2. What is Wikipedia? • Freely licensed encyclopedia • Available in more than 100 languages • Czech (cs), English (en), de, fr, … • Written by volunteers • The English edition started 15/01/2001 http://www.wikipedia.org/

  3. Reading Wikipedia

  4. Editing Wikipedia

  5. How a wiki works • Every page contains an “edit” link • Simple formatting syntax (wikicode) • '''bold''', ''italic'', [[link]] etc. • Page history: revisions, authors, diffs • Recent changes, watched pages • Categories, what links here, …

  6. Edit history

  7. Examining differences (“diff”)

  8. Community, rules • A community of users (“wikipedians”) • Anarchy, democracy, meritocracy, … • Various forms of communication • Talk page next to each article • Project pages, Village Pump • E-mailing users • IRC channels, mailing lists

  9. Rules • Basic rules • Neutral Point of View (NPOV) • No original research • Verifiability • Free content (GNU FDL)

  10. Sysops, fighting vandalism • There are many fools on the Internet… • “Soft security” • Easily reverting changes through history • Sysops • No power, only technical measures • Deleting pages, blocking vandals, protecting pages, simplified reverting

  11. Problems • Vandalism • Not a critical problem • Human conflicts, trolls, flamewars, … • POV pushers • Bit of a problem

  12. Quality and trustworthiness • Infinite monkey theorem? • Without credible authors of content? • rules for verifiability etc. • Warning templates • Systemic error • The articles are written by young, technically apt people from the West

  13. Quality surveys • c’T (2004): Wikipedia gegen Brockhaus und Encarta • Wikipedia 3.8 pts, both remaining 3.6 pts. • Nature (2005): Internet encyclopaedias go head to head • Considering number of errors, Wikipedia is worse than Encyclopaedia Britannica only by a small margin • (EB disagreed)

  14. Growth rate

  15. Czech Wikipedia growth rate

  16. Popularity increase

  17. Growth rate, financing • Exponential growth • Only voluntary donations, sponsoring, grants etc. • Absolutely no advertising at the moment • 2005 budget: $739,200 • …and much more this year…

  18. Software & hardware • MediaWiki (http://www.mediawiki.org) • GNU GPL • Linux, PHP, MySQL, Apache, Squid • Clusters, over 100 servers around globe • Currently peeks about 20 K HTTP req/s

  19. Organization, other projects • Wikimedia Foundation • Other projects • Commons (http://commons.wikimedia.org) • Wiktionary (http://www.wiktionary.org) • Wikiquote (http://www.wikiquote.org) • Wikinews (http://www.wikinews.org) • Wikibooks, Wikisource, Wikispecies

  20. Thank you for your attention • Contact: • http://cs.wikipedia.org/ • Petr Kadlec <petr.kadlec@gmail.com> “We make the Internet not suck” – Jimmy Wales

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