1. Social Networks of WikipediaPaolo MassaSoNet @ Bruno Kessler Foundation, Trento, Italyhttp://www.gnuband.org

2. Contributions Methodological paper onAlgorithms for extracting a network of Who talks to whom on Wikipedia +Validation of quality by manual codingCode is open source and reusable =Basic step for Social Network Analysis 3. Outline Statistics on Wikipedia/wiki Algorithms for Extracting aSocial Network Manual Validation of Algorithms 4. English WikipediaStarted in 20013.500.000+ articles440.000.000+ edits 14.000.000+ registered users3.500.000+ at-least-1-edit users 5. Multi-lingual: 280+ Wikipedias50.000+ wikis on Wikia.com, some 1.000.000+ edits 6. Article Page 7. Article Page / Article Talk Page 8. User Page 9. User Page User Talk Page (UTP) 10. How to extract a network ofwho talk to whom from Usertalk pages? 11. User talk page http://en.wikipedia.org/wiki/User_talk:Phauly 0.6 12. User talk page http://en.wikipedia.org/wiki/User_talk:Phauly 0.6 13. User talk page http://en.wikipedia.org/wiki/User_talk:Phauly 1 Shell Phauly0.6 14. User talk page http://en.wikipedia.org/wiki/User_talk:Phauly 1 Shell Phauly0.6 15. User talk page http://en.wikipedia.org/wiki/User_talk:Phauly 1 ShellPhauly 1 Martin 16. Broader scopeWe (SoNet) work on How UTPs are used (coordination) Characterize users of Wikipedia (basedon gender, interests, religion, ...) Formation of Collective memories ofevents in Wikipedia Goal: understand/model what users doin Wikipedia Wikisociology 17. Were hiring! ;)Call for researcher athttps://risorseumane.fbk.eu/it/node/234Info about SoNet groupat http://sonet.fbk.euIf interested, come to talkto me! 18. Other Wikipedia networks Few papers on User talk pages Node=User Edge=Coediting x articles Edge=Editing article after user A Edge=Reverted edit of user A Edge=Vote in elections for admins Node=Page / Edge=Link Node=Category / Edge=Inclusion 19. How to extract who talks to whom?3 ways:(1) Signatures (automated)(2) History of edits (automated)(3) Manual coding 20. Input: Wikipedia dumpsXML dump of every edit occured to everypage in time (10 years!)English Wikipedia dump =5,600 Gigabytes!(our scripts work on every wiki: 280+language Wikipedia, but also 50.000+wikia.com wikis ...) 21. How to extract who talks to whom?3 ways:(1) Signatures in text (automated)(2) History of edits (automated)(3) Manual coding 22. (1) Signature algorithm 23. (1) Signature algorithm 24. (1) Signature algorithmpagesmetacurrentXMLUsertalk:Phauly==Welcome!==Hello,{{BASEPAGENAME}},and[[Wikipedia:Welcome,newcomers|welcome]]tyourcontributions.Ihopeyouliketheplaceanddecidetostay.Heremightfindhelpful:*[[Wikipedia:Fivepillars|ThefivepillarsofWikipedia]]*[[Wikipedia:Howtoeditapage|Howtoeditapage]]*[[Help:Contents|Helppages]]*[[Wikipedia:Tutorial|Tutorial]]*[[Wikipedia:Articledevelopment|Howtowriteagreatarticle]]*[[Wikipedia:ManualofStyle|ManualofStyle]]Ihopeyouenjoyeditinghereandbeinga[[Wikipedia:Wikipedians|Wikip[[Wikipedia:Signyourpostsontalkpages|signyourname]]ontalkpage(~~~~);thiswillautomaticallyproduceyournameand 0.6checkout[[Wikipedia:Questions]],askmeonmytalkpage,orplace{{helpme}}onyourtalkpageandsomeoneansweryourquestions.Again,welcome!.[[User:Shell_Kinney|Shell[[User_talk:Shell_Kinney|babelfish]]15:29,7November2006=="Wikipediaendnoteassisstant"==Hi,sorrytotakesolongtoreplytoyourmessage.Itsconventionatmessagesatthebottomofthepage,andasIwasmovingcountryattheseeyourmessageuntilnow!HaveyoutriedtheupdatedURL,http://toolserver.org/~verisimilus/Scholar?LetmeknowifyoucontinuGladyoufindthetooluseful!Bestwishes,[[User:Smith609|Martin]]([[User:Smith609|S[[User_talk:Smith609|Talk]])01:19,7October2008==Testanonymousedit==Justatestdonebymyselfonsignatureformatting.[[Special:Contrib217.77.80.29]]([[Usertalk:217.77.80.29|talk]])12:08,8February2010 25. (1) Signature algorithm Consider pages with title Usertalk:PhaulyUser talk:T (or equivalent==Welcome!==in other languages) Hello,{{BASEPAGENAME}},and[[Wikipedia:Wyourcontributions.Ihopeyouliketheplmightfindhelpful: Search for signatures of*[[Wikipedia:Fivepillars|Thefivepillars*[[Wikipedia:Howtoeditapage|Howtoediuser S in text*[[Help:Contents|Helppages]]*[[Wikipedia:Tutorial|Tutorial]]*[[Wikipedia:Articledevelopment|Howtowr Consider them as*[[Wikipedia:ManualofStyle|ManualofStyIhopeyouenjoyeditinghereandbeingamessage from S to T [[Wikipedia:Signyourpostsontalkpages|0.6(~~~~);thiswillautomatcheckout[[Wikipedia:Questions]],askme{{helpme}}oansweryourquestions.Again,welcome!&nbsSignature of XXX if [[User:XXX| [[User_talk:Shell_Kinney|babelfish]]