An Extensible Semantic Wiki Architecture

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An Extensible Semantic Wiki Architecture

  1. 1. An Extensible Semantic Wiki Architecture The Semantic Wiki Extension Space<br />Jochen Reutelshöfer, Fabian Haupt,<br />Florian Lemmerichand Joachim Baumeister,<br />University of Würzburg<br />Germany<br />
  2. 2. Semantic Wiki<br />Whatis a Semantic Wiki?<br />„Semanticallyenriched“ content<br />Allowingforsome additional functionalitybeyondreadingandbrowsing<br />Examples: Semantic MediaWiki, KIWI, SWIM, AceWiki, SweetWiki,…<br />Problem:<br />Wiki means: fast and simple<br />enrichingthecontentmeans: …<br />Danger<br />not so fast and not so simple (anymore) ?<br />
  3. 3. Why Extending(Semantic) Wikis?<br />Customization: tailored to specific applications<br />Lowers barriers of usage<br />Higher efficiency in formalization<br />Extension: more complex knowledge management<br />Problem-solving knowledge, flowchart-editing<br />Advanced editing support<br />Exploitation of further formalization techniques<br />NLP, Text Mining<br />Customized to a startup corpus<br />
  4. 4. How Extending Semantic Wikis?<br />?<br />
  5. 5. The Semantic Wiki Pipeline<br />
  6. 6. DimensionsofExtensions<br />
  7. 7. Semantic Wiki Extension Space<br />(minimal)<br />
  8. 8. The KnowWE Minimal Core<br />Presentation<br />Inline<br />SPARQL <br />Queries<br />Basic Markups<br />Sesame2 <br />+ OWLIM<br />Formalization<br />Reasoning<br />
  9. 9. Extensions<br />
  10. 10. Application: Hermes Wiki<br />Developers: Chair of ancient greek history, 4-6 people (University of Würzburg)<br />Task: Connecting explaining text, formalized time events and historical sources<br />Purpose: Exam preparation for students<br />Content: &gt; 500 pages, ~ 600 time events, &gt;100 Google-maps, &gt; 350 concepts (historical characters, places, peoples, rites…)<br />
  11. 11. Articleabouttheconquestof Alexander the Great<br />32 time events<br />
  12. 12. In Wiki Source…<br />
  13. 13. In Wiki Source…<br />Importance<br />Title<br />Date<br />Description<br />Source<br />
  14. 14. Hermes Ontology<br />Concept<br />Character<br />Geogr. Location<br />Source<br />involves<br />describedBy<br />locatedAt<br />Politician<br />God<br />Writer<br />Historian<br />Dynasty<br />Description<br />TimeEvent<br />Title<br />hasDate<br />Date<br />Importance<br />
  15. 15. DecoratingSemantic Wikis<br />Hide/Disable Basic Functionality<br />Add customKnowledgeFormalizationandPresentationExtensionstailoredexactlytotaskand mental model oftheuser<br />Result: People don‘tneedtoknowabout SWs<br />
  16. 16. The d3web Extension<br />FormalizationComponent:<br /><ul><li>Different markups
  17. 17. Visual editors</li></ul>For:<br /><ul><li>Rules
  18. 18. DecisionTrees
  19. 19. Covering Models</li></ul>PresentationComponent:<br />- Different interview methods<br />
  20. 20. The d3web Extension<br />Interview methods<br />d3web reasoning<br />engine<br /><ul><li>Markups
  21. 21. Tables
  22. 22. Editors</li></li></ul><li>PosTagging Extension<br />
  23. 23. The Semantic Wiki Pipeline<br />
  24. 24. ?<br />
  25. 25. Multimodal Knowledge<br />Knowledge of organizations is present in different shapes but referring to the same objects and relations of the domain<br />Functional Models<br />Tabular data<br />Text<br />Logic<br />XML<br />Rules<br />Images<br />Segmented Text<br />Cases<br />Flow charts<br />
  26. 26. Semantic Wiki:<br />AuthoringandReasoningwithknowledge<br /><ul><li> in different formats
  27. 27. from different authors
  28. 28. at different degreesofformality</li></ul>describingonetopic.<br />KnowWE – A Semantic Wiki<br />forKnowledge Engineering<br />Try out:<br />http://knowwedemo.informatik.uni-wuerzburg.de<br />THANK YOU<br />ExamplepageClogged Air Filterfrom a cardiagnosisknowledgesystem<br />
  29. 29. Extension Points<br />Modules<br />Introducingnew„types“ (newmarkup)<br />TagHandlers<br />Actions<br />Actions initiatedbyuser (e.g., transformation/refactoringofcontent)<br />Renderers/Editors<br />Visual representationoftypes<br />ReviseSubtree Handlers<br />Traversationofcontenttree after save (e.g., meta-dataextraction, syntax check)<br />
  30. 30. Conclusions<br />KnowledgeWiki Environment<br />KnowWE Core version (withoutanyextension) readyforrunning/extensiondevelopment<br />Latestcode on sourceforge<br />Ongoingdevelopment (drivenbythe d3web-extension)<br />Basic functionalityimprovingwithJSPWiki<br />
  31. 31.
  32. 32. DimensionsofExtensions<br />
  33. 33. KnowWE Core<br />Formalizationcomponents:<br />Introduceproperties/hierarchies:<br />Presentationcomponent:<br />

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