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The Semantic Web is growing…. 45. 40. 35. 30. 25. #SW Pages. 20. 15. 10. 5. 0. 2003. 2004. Lee, J., Goodwin, R. (2004) The Semantic Webscape: a View of the Semantic Web. IBM Research Report. The Semantic Web is growing….
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The Semantic Web is growing… 45 40 35 30 25 #SW Pages 20 15 10 5 0 2003 2004 Lee, J., Goodwin, R. (2004) The Semantic Webscape: a View of the Semantic Web. IBM Research Report.
The Semantic Web is growing… http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData
Next Generation Semantic Web Applications Smart Features NG SW Application Semantic Web • Able to exploit the SW at large • Dynamically retrieving the relevant semantic resources • Combining several, heterogeneous Ontologies • Need tools and infrastructures to efficiently access the knowledge available on the SW: a Gateway…
Watson Architecture Collecting Analyzing request Crawling Parsing (Jena) Validation/ Analysis Indexing W W W populates populates populates populates extracted discovered retrieved used URLs Repository Metadata Indexes Querying queries queries queries queries queries SPARQL Query Ontology Exploration Keyword Search
Collecting and Analyzing Knowledge • Specialized crawlers for ontology repositories and semantic relations. • Watson has collected tens of thousands of semantic documents. • This represents Millions of RDF entities, most of them being instances. • New sources of knowledge are frequently integrated (FOAF, DBPedia, etc.), so that this number is growing rapidly.
Analyzing Semantic Content Size Coverage Richness • Have to deal with Heterogeneity! Great variety in… Etc.
Interfaces, Demos and Applications… Interfaces: WUI Web User Interface:http://watson.kmi.open.ac.uk/WatsonWUI
Web services and API Watson Server Semantic Web Application Ontology Search Service Semantic repository Metadata repository Indexes Watson API Entity Search Service SOAP • Allows applications developers to access Watson features, and so the collected knowledge, in a lightweight way. • But what applications (can) do with it?
Applications Folksonomy Enrichment PowerAqua: Question Answering Protégé and NeOn Toolkit plugin: Knowledge reuse PowerMagpie: Semantic Browsing Ontology Matching, etc…
Final Message • Watson is an ongoing project to build a Gateway to the Semantic Web • Usable Now! • But lost of directions for improvements So… Use it! Show it! Torture it! Build new applications with it! And… Send feedbacks! Suggest new features! Suggest new applications!
Thank you! Website: http://watson.kmi.open.ac.uk Blog: http://watson.kmi.open.ac.uk/blog E-mail: m.daquin@open.ac.uk WUI: http://watson.kmi.open.ac.uk/WatsonWUI API: http://watson.kmi.open.ac.uk/WS_and_API.html Twitter: watson_swg