Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

An Extensible Semantic Wiki Architecture


Published on

Published in: Technology, Education
  • Be the first to comment

  • Be the first to like this

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 /><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 />