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My talk for Tsinghua University Alumni in Seattle area for centennial celebration tech talk


  • 1.Semantic Wikis Social Semantic Web In Action2011-03-25Specially Prepared for Tsinghua University Alumni in greater Seattle area for centennial celebration

2. About Me: Jesse Wang ()2 3. Who is Vulcan3 4. What does Vulcan do4 5. It all began with a vision5 6. Now the Vision Continues as Project Halo6 7. Project Halos Focus Areas Automated User-CenteredAURA Reasoning and Acquisition System Text book you can talk to Semantic Inference with LargeSILK Knowledge-base Non-monotonic rule system / RIF Semantic MediaWiki +SMW+ Knowledge authoring with SMEsPlus other related semantic technologies and commercial efforts7 8. Project Halos Goals Address the core problemsin Knowledge Bases scale brittleness Have high impactKB Effort (cost, people,) Now VulcanFuture KB size (number of assertions, complexity)8 9. Crowdsourcing for Better Knowledge Acquisition9 10. Wiki as a Crowdsourcing Tool This distinguishes wikis from other publication tools11 11. Consensus in Wikis Comes from Collaboration ~17 edits/page on average in Wikipedia (with high variance) Wikipedias Neutral Point of View Convention Users follow customs and conventions to engage with articles effectively12 12. Software Support Makes Wikis Successful Trivial to edit by anyone Tracking of all changes, one- step rollback Every article has a Talk page for discussion Notification facility allows anyone to watch an article Sufficient security on pages, logins can be required A hierarchy of administrators, gardeners, and editors Software Bots recognize certain kinds of vandalism and auto- revert, or recognize articles that need work, and flag them for editors13 13. Success of Wikis14 14. Wikis are Great, But Wiki Clock?15 15. How About Hidden Goodies in the Wiki?Wikipedia has articlesabout all cities their populations their mayors the skyscrapersSo can I ask for a list ofthe worlds 5 largestcities with a femalemayor?Or Skyscrapers inShanghai with 50+ floorsand built after 2000?16 16. Enters Semantics To answer questions like: The 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 Median (average) base annual salary of CEOs of Fortune 100 companies in America (Europe, Asian,) All Porsche Vehicles Made in Germany that accelerate from 1-100 km/h less than 4 seconds Sci-Fi movies made after year 2000 that cost less than $10M and gross more than $30M A map showing where all Mercedes- Benz vehicles are manufactured And many more17 17. What is a Semantic Wiki A wiki that has an underlying model of the knowledge described in its pages. To allow users to make their knowledge explicit and formal Semantic Web Compatible Semantic Wiki18 18. Two Perspectives Wikis for Metadata Metadata for Wikis19 19. Characteristics of Semantic WikisSemantic Wikis 20 20. List of Semantic WikisAceWiki Semantic MediaWiki - anArtificialMemoryextension to MediaWiki thatWagn - Ruby on Rails-basedturns it into a semantic wikiKiWi Knowledge in a WikiSwirrl - a spreadsheet-basedsemantic wiki applicationKnoodl SemanticCollaboration tool andTaOPis - has a semantic wikiapplication platformsubsystem based on FramelogicMetaweb - the software thatpowers Freebase TikiWiki CMS/Groupwareintegrates Semantic links as aOntoWikicore featureOpenRecordzAgile Wikidsmart - semanticallyPhpWiki enables Confluence 21 21. Basics of Semantic Wikis Still a wiki, with regular wiki features Category/Tags, Namespaces, Title, Versioning, ... Typed Content (built-ins + user created, e.g. categories) Page/Card, Date, Number, URL/Email, String, Typed Links (e.g. properties) capital_of, contains, born_in Querying Interface Support E.g. [[Category:Member]] [[Age::50]] [[Year built::