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Applying semantic web technologies to the meta-description of medical educational resources. Evangelia Mitsopoulou, St George’s University of London Panagiotis Bamidis, Aristotle University of Thessaloniki Daniela Giordano, University of Catania, Italy
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Applying semantic web technologies to the meta-description of medical educational resources Evangelia Mitsopoulou, St George’s University of LondonPanagiotis Bamidis, Aristotle University of Thessaloniki Daniela Giordano, University of Catania, Italy Stefan Dietze, Open University, UKCharalampos Bratsas, Aristotle University of Thessaloniki MedBiquitous Annual Conference 2011
Introduction • Problem • Lack of standardisation mechanisms, that enable state-of-the-art of medical educational resources to be discovered, retrieved, shared and re-used across European Academic Institutions • Solution • Standardised format of description of the resources by means of metadata • Metadata need to be described by state-of-the-art e-learning standards and make use of their many advantages Semantic Web, Linked Data • Aim • To improve medical & healthcare education MedBiquitous Annual Conference 2011
Metadata Quality in mEducator • General Characteristics • To describe core data about the resources • To describe educational aspects of the resources • To be implemented by state-of-the-art specifications • Need to be widely used (interoperable) • Reusing existing e-learning standards • Should not reinvent the wheel • Extending e-learning standards to describe new concepts i.e. Repurposing, Companionship, Attention MedBiquitous Annual Conference 2011
Semantic Web Technologies Know-Why ? MedBiquitous Annual Conference 2011
Metadata Resource 1 Resource 3 Metadata www Metadata Resource 2 Metadata Healthcare LOM compliant Serialised in XML From XML and Web of Documents… • Healthcare LOM describes medical resources WEB of Documents Lack of interlinking hyperlinks hyperlinks hyperlinks MedBiquitous Annual Conference 2011
mEducator Resource 1 Metadata Metadata mEducator Resource 3 mEducator Resource 2 Metadata Metadata RDF Schema compliant Serialised in XMLRDF/XML Use Http Uri’s Shifting towards RDF and Linked Data WEB of Data Data Set Linking Open Data Cloud Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch http://lod-cloud.net/ MedBiquitous Annual Conference 2011
Semantic Web Technologies Know-How? MedBiquitous Annual Conference 2011
Work Overview Properties Some of them need also the defintion of Classes 5. mEducator Controlled Vocabularies
Conceptual Model - Overview MedBiquitous Annual Conference 2011
Conceptual Model - In detail MedBiquitous Annual Conference 2011
Conclusions & Next Steps • Standardisation format in order to enable sharing and retrieving of resources is essential • Choice of the right format (RDF/XML) will link the data of the Web. Benefits: • Access existing knowledge • Interoperability between resources • Shift towards an Ontology MedBiquitous Annual Conference 2011
Useful Links • Metadata scheme specification & best practises guidelines: http://www.meducator.net/?q=content/mEducator_Scheme_bpg#RecentChanges • Metadata scheme in RDF:http://www.meducator.net/mdc/schema.rdf • Controlled Vocabularies in RDF • Repurposing: http://www.meducator.net/mdc/repurposing.rdf • Resource Type: http://www.meducator.net/mdc/resourceType.rdf • Media Type: http://www.meducator.net/mdc/mediaType.rdf • Educational Outcomes: http://www.meducator.net/mdc/educationalOutcome.rdf • Educational Level: http://www.meducator.net/mdc/educationalLevel.rdf MedBiquitous Annual Conference 2011
Contact: Evangelia Mitsopoulou emitsopo@sgul.ac.uk MedBiquitous Annual Conference 2011
mEducator Controlled Vocabularies (Tuning, Tomorrow’s Doctor, Scottisch Doctor, French Taxonomy) • Educational Outcomes • Media Type • Resource Type • Educational Practise • Professional Practise • Reference • Educational Level • Repurposing Types RDN/LTSN, Dublin Core, Healthcare LOM, MeSH MedBiquitous Annual Conference 2011
RDF Model title creator John educationalObjectives Medical Resource keywords Member Of OxfordUniversity Cardiology sameAS Is located was founded MESH Term SNOMED Term MedBiquitous Annual Conference 2011
Medical Educational Resources Aim: To enable specialized state-of-the-art medical educational content of varying types to be discovered, retrieved, shared and re-used across European higher academic institutions. • How: By implementing and evaluating two different solutions • A “mashup” platform that aggregates content published in isolated Learning Content Management Systems (LCMS) • A federated architecture of LCMSs based on Semantic Web Services for search, interchange and delivery of learning objects