applying and extending semantic wikis for semantic web courses
DESCRIPTION
This work describes the application of semantic wikis in distant learning for Semantic Web courses. The resulting system focuses its application of existing and new wiki technology in making a wiki-based interface that demonstrates Semantic Web features. A new layer of wiki technology, called “OWL Wiki Forms” is introduced for this Semantic Web functionality in the wiki interface. This new functionality includes a form-based interface for editing Semantic Web ontologies. The wiki then includes appropriate data from these ontologies to extend existing wiki RDF export. It also includes ontology-driven creation of data entry and browsing interfaces for the wiki itself. As a wiki, the system provides the student an educational tool that students can use anywhere while still sharing access with the instructor and, optionally, other students. Lloyd Rutledge and Rineke Oostenrijk. Applying and Extending Semantic Wikis for Semantic Web Courses, In: Proceedings of the 1st International Workshop on eLearning Approaches for the Linked Data Age (Linked Learning 2011) at the 8th Extended Semantic Web Conference (ESWC 2011), Heraklion, Greece, May 29th, 2011. http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-717/paper9.pdfTRANSCRIPT
Applying and Extending Semantic Wikis for
Semantic Web Courses
Linked Learning 2011, 29 May 2011
Lloyd Rutledge, Open Universiteit
• Independent students• Education as distance collaboration• Flexible schedules
• Many conforming Semantic Web functions
• Well-known oft-used tool• Specializes in editing ontologies
• Online, sharable, universal• Specializes in data retrieval• XSLT can tailor data report
presentation
• Online, sharable, universal• Specializes in distance collaboration• Well-supported, has extension
framework
• MediaWiki extension• Well-supported, active
development• Semantic Web: -ish, -partial
Annotation syntax Data queries and formatted reports RDF export
• Semantic MediaWiki extension• Infobox-like templates for data
browsing• Forms for data entry• Primitives for building ontology-based
interface
Semantic MediaWiki for Distance Learning
• Student and teacher share environment– From anywhere, anytime– Student can build– Teach can track and query
• Student can build full data system– Ontologies, data, tailored interface– Does everything, but nothing well– Little internal Semantic Web support
Forms of education use of Semantic MediaWiki
• Student projects– Done for Bachelors and Masters– Semantic wiki is foundation for system
building• Courseware
– Course information– Student assignments and projects
Semantic MediaWiki for the Semantic Web
• Really?– Started as a research baby step toward– Has become short-term industry driven– Many near equivalents and “not quites”
• Components– Own data annotation syntax– Own query language
• Although several extensions offer SPARQL
– Many query result presentations formats– RDF export with Linked Data links
• Little internal Semantic Web support
OWL Wiki Forms
• Editing Semantic Web ontologies– Forms and infoboxes for ontologies– Classes and properties in RDF, RDFS and OWL– Also in RDF export
• Semantic MediaWiki annotations in infobox code– rdf:datatype -> [[Has type::]]– owl:inverseOf -> SMW’s invert-property template
• Inferencing in infobox displays– rdfs:domain -> property in template and form– owl:symmetricProperty -> in infobox both ends of triple
• Inferencing in Forms input– rdfs:range -> Semantic Forms autocompletion parameters
Conclusion
• MediaWiki for teacher access– The more on the wiki the better
• The Semantic Web in the wiki• Remains an “extra” tool for students• Future work
– More SPARQL usage: internal & external– Fresnel integration– Additional semantic browsing features– Continued integration with new extensions