1. www.sti-innsbruck.at © Copyright 2008 STI INNSBRUCK www.sti-innsbruck.at Rhizomer “The Rhizomer Semantic Content Management System” Roberto Garcia, Juan Manuel Gimeno, Ferran Perdrix, Rosa Gil, Marta Oliva http://rhizomik.net Ioan Toma

2. www.sti-innsbruck.at Agenda Introduction The Rhizomer platform Use Case: S5T Project Summary

3. www.sti-innsbruck.at Introduction Difficult to intelligently manage information with current CMSs/Wikis. Use Semantic Web technologies Semantic CMSs/Wikis don’t fully exploit them: Most semantic wikis focus on page annotation, limited reasoning, no import...

4. www.sti-innsbruck.at Rhizomer Platform for Semantic Content Management and Human-Semantic Web Interaction Based on Web 2.0 technologies Client (AJAX) / Server (REST) Web 3.0 data model Semantic metadata store: RDF(OWL) / SPARQL Generic metadata browsing HTML + Javascript Object-Action Interaction Paradigm Semantic Web Services

5. www.sti-innsbruck.at Rhizomer Server part: REST interface over the repository Jena, Sesame, … GET: SPARQL end-point PUT/POST/DELETE RDF metadata management Semantic Web Services OWL-S descriptions Service Profile: Process, hasInput, hasOutput REST adapters for Javascrip APIs (e.g. Google Maps), SOAP, …

6. www.sti-innsbruck.at Rhizomer Client part: AJAX (asynchronously send queries and metadata) RDF/XML - XSLT -> HTML (browsing) “Semantic” forms (edition) RDF/XML - XSLT -> FORM – Javascript -> RDF

7. www.sti-innsbruck.at S5T Project S5T Spanish research project (TIN2005-06885) Scalable Semantic personalized Search of Spoken and written contents on the Semantic Web Application in the Segre media group Newspaper, TV, radio and web site Internal use (media house): facilitate content production, history tracking, contextualisation External use (web users): advanced services (e.g. news personalisation, semantic podcasts, …)

8. www.sti-innsbruck.at S5T Project Semantic annotation of audiovisual content voice -> text (keywords) -> semantic annotations Rhizomer: user interface for browsing/interacting with content and associated knowledge

9. www.sti-innsbruck.at S5T Project: Query Queries: Metadata Content (transcript) Words Concepts

10. www.sti-innsbruck.at S5T Project: Store REST interface over semantic repository e.g. Jena, Sesame GET -> SPARQL endpoint, PUT/POST/DELETE RDF metadata management

11. www.sti-innsbruck.at S5T Project: Browse

12. www.sti-innsbruck.at S5T Project: Editor

13. www.sti-innsbruck.at S5T Project: Interaction Given a resource (object)… determine available services (actions) Resource description: type, properties, values, …

14. www.sti-innsbruck.at S5T Project: Service descriptions Service descriptions: ID: Service Adapter URL hasInput: an OWL Class Service applicable to any resource classified in this class hasOutput: output content type text/html, application/rdf+xml, …

15. www.sti-innsbruck.at Conclusions Content Management System based on semantic metadata Framework for Human-Semantic Web Interaction Flexible Projects: S5T, Rhizomik, … Extensible Plugins for visualisation, interaction and metadata extraction Usable Preliminary usability tests