The document presents a comprehensive overview of semantic wikis and their role within the social semantic web, detailing their functionality, various platforms, and applications. It highlights the evolution and significance of semantic wikis, offering examples of their use in knowledge management and collaborative environments. Key features of semantic wikis include structured data, enhanced search capabilities, and integration with semantic web technologies, aiming to improve the accessibility and usability of online information.

1. Semantic Wiki: Social Semantic Web In UseA Gentle IntroductionJesse Wang 12/7/2009Invited Talk at Intelligent Information Processing Lab, Fudan University, Shanghai, China

2. Abouthttp://ProjectHalo.comJesse Wang (王嘉欣)Development Architect | Research Program ManagerVulcan Inc., Seattle, WA, USAPaul G. Allen (Microsoft Co-founder)’s private companyPaul Allen – co-founded Microsofthttp://en.wikipedia.org/wiki/Paul_AllenLaid the foundation of Microsoft’s successPersuaded [[Bill Gates]] to quit [[Harvard University]]Spearheaded a deal to buy [[QDOS]] and… the rest is historyA vision and some big ideas… 2

3. Wiki & Semantic WebOther Big Ideas3

4. AgendaWikiSemantic WikiExamples of Semantic WikisUseful Extensions of Semantic MediaWikiFun and Real Applications built on Semantic MediaWiki4

5. Wikipediahttp://en.wikipedia.org/wiki/Wikipedia14 million articles (3.1 million in English) Deutschsprachige Wikipedia: 900,000+ articles (2009/5)ウィキペディア日本語版: 600,000+ articles (2009/7)Chinese Wiki-like Encyclopedia互动百科3.9 million articles, 4.3 billion chars (2009/12)百度百科1900430 articles (2009/12)Wikis as We Know5

6. Some Popular WikisAboutUs.org – Intenet Directory: > 14,000,000City wikis – umbrella wikis for cities GeoNames – places: 8,000,000 +OpenStreetMap – the Free Wiki World Map: > 100,000 USERSWikitravel – travel guidesLyricWiki - LyricsWikileaks – leak info anonymouslywikiHow – how to …ShopWiki – you knowSNPedia – you’ll know6

7. Even More “Wikis”WetPaint

8. lets you build a rich, online community around the whatever-it-is that you’re really into. Utilizing the best features of wikis, blogs, forums and social networks, Wetpaint mixes everything you need so you can create, collect, and organize content on your own social website.

9. Ning

10. Ning offers an easy-to-use service that allows people to join and create Ning Networks.

11. To explore and express their interests, discover new passions, and meet new people around shared pursuits.7

12. Wiki Is HOT8

13. So What is a WikiBy Wikipedia:A wiki (pronounced /ˈwɪki/ WIK-ee) is a website that allows the easy[1] creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor.[2][3] Wikis are typically powered by wiki software and are often used to createcollaborative websites, to power community websites, for personal note taking, in corporate intranets, and in knowledge management systems.9

14. What Wiki Is Really AboutQuick and Easy – no need of extra softwareCollaborative Community AuthoringInterlinked ContentVersion ControlNotification 10

15. Wikis Engineshttp://en.wikipedia.org/wiki/Comparison_of_wiki_softwareIn almost all popular programming languages11

16. What Wiki is Now: PlatformWiki is not only a wiki engine, web site, hosting service…It is a social, collaborative productivity systemIt is a platform where people can build web applicationsIt marries the web of computers with the web of peopleIt is a great indicator of human Civilization!12

17. Many Wiki ServicesWikiaWiki communities for everyonePBWiki/PBWorksOnline Collaboration that just WorksTwikiOpen Source Enterprise Wiki and Web 2.0 App PlatformMoinMoinadvanced, easy to use and extensible WikiEngineWikiWorksSemantic Wiki hosting service13

18. Wikis Are Great …Enable new scale of human collaborationEveryone can readEveryone can writeEveryone can editEveryone is accountable for everything14

19. Wiki : the Web in the Small15With man power!

20. Human Involvements are Great!16But some things are better left to machines…

21. Wiki Clock ?17

22. Wikipedia has lots of info, butWikipedia has articles about…

23. … all cities

24. … their populations

25. … their mayors

26. … the skyscrapers

27. … # of floors

28. … built year18

29. Not Readily UsableSo can I ask for a list of the world’s 10 largest cities with a female mayor?Sort by population, age…Or Skyscrapers in China with 70+ floors and built after 2005?Or in Singapore, Shanghai, East Asia?Built in year range 1990-2000?With 50/60 floors and more?Sort by floors, year, height?Group by regions, cities?Height in meter?19

30. Will Search Help?Not something you can do now or in the foreseeable near future…20

31. Wikipedia’s answer: lists21

32. 22

33. 23

34. 24

35. Can you really get your answers?25

36. Wiki Answers? Nice try, but…26

37. We NeedMore HelpWhat computers can understand (powered by programs) is simple named entities, such as:... 43285812... 2009-12-07... 400 Guoding Road, Shanghai, China... Jesse WangStill not always correct with all the possible variations of formats...27

38. Question: How to get Answers out of the ContentThe female majors of top 10 cities, sorted by population, starting year, age…All skyscrapers in China (Japan, Thailand,…) of 50 (40/60/70) floors or more, and built in year 2000 (2001/2002) and after, sorted by built year, floors…, grouped by cities, regions…Medianannual salary of CEOs of Fortune 100 companies in America (Europe, Asian,…)(And so on…)28

39. Answer: More ContentNot just any type of contentWe need structured contentMetadataNot just any type of metadataGood quality metadata29Question: How to get more quality metadata?

40. Semantic WikisViews from DifferentAngles30

41. Definition: Semantic WikisSemantic Wiki is a wiki that has an underlying model of the knowledge described in its pages.The knowledge model found in a semantic wiki is typically available in a formal language, so that machines can process it into an entity-relationship or relational database.Semantic Web compatibilityTo allow users to make their internal knowledge more explicit and more formal, so that the information in a wiki can be searched and presented in better ways31

42. “What structure” & “How to get it” A Little More Structure  Knowledge ManagementQuantity (count, types)  Quality (consistent, complete)Data in Triples  Ontology ReasoningApproachesWikis for MetadataMetadata for Wikis32

43. Nova Spivack: MetaWeb33Semantic Wikis

44. 2006-now: a major research topic2005: [swikig] mailing list launched

45. 2006: First Workshop on Semantic Wikis: From Wiki to Semantics [SemWiki2006] at ESWC2006, Budva, Montenrego

46. 2006: Second Workshop on Semantic Wikis: Wiki-based Knowledge-Engineering [WibKe2006] at WikiSym 2006 in Odense, Denmark

47. 2008: Third Workshop on Semantic Wikis: The Wiki Way of Semantics [SemWiki2008] at ESWC2008, Tenerife

48. 2009: Semantic Wiki session in SemTech Conference, San Jose, CA

49. 2008-2009: Semantic MediaWiki user group meetings in Boston, USA, Stanford, USA, and Karlsruhe, DE34http://semwiki.org

50. Semantic Wiki Illustrated35

51. Basics of Semantic WikisStill a wiki, with regular wiki featuresE.g. Category/Tags, Namespaces, Title, Versioning, ...Typed ContentE.g. Page/Card, Date, Number, URL/Email, String, …Typed LinksE.g. “capital_of”, “contains”, “born_in”…Querying Interface SupportE.g. “[[Category:Person]] [[Age::<30]]”36

52. Advanced Semantic Wiki FeaturesSemantic forms or templatesAuto-completion based on semanticsPowerful visualizations based on semantics/structures/typesRules and reasoning supportAdvanced search and queries (faceted search, SPARQL, etc.)Import and Export of Semantic Data37

53. Semantic Web in the SmallSemantic Wikis try to combine the strengths of

54. Semantic Web

55. machine process-able

56. data integration

57. complex queries

58. Wiki

59. easy to use and contribute,

60. strongly interconnected,

61. collaborative.

62. Social Semantic Web38

63. Popular Semantic WikisSome Examples 39

64. List of Semantic WikisAceWiki

65. ArtificialMemory

66. Wagn - Ruby on Rails-based

67. KiWi – Knowledge in a Wiki

68. Knoodl – Semantic Collaboration tool and application platform

69. Metaweb - the software that powers Freebase

70. OntoWiki

71. OpenRecord

72. PhpWiki

73. Semantic MediaWiki - an extension to MediaWiki that turns it into a semantic wiki