Metadata: how to remove the weakest link
Download as PPTX, PDF1 like536 views
This document discusses key issues around sharing and searching for open educational resources (OER) in Asia. It identifies the weakest link in OER repositories as poor metadata and outlines approaches to address this such as text mining algorithms that can read, learn from, and recommend metadata to improve search and discovery of resources. The document provides an overview of the OERScout tool which uses text mining of resource content and metadata to generate keyword mappings to strengthen metadata quality and enhance search.
Metadata: how to remove the weakest link
- 1. Metadata How to Remove the Weakest Link Web-conferencing Series #1: OER in Asia: Key issues of sharing and searching 25th February 2014 Ishan Abeywardena MSc, MSc (Brunel), BSc (Bangalore), MIEEE, MBCS, MIET, MTA Deputy Dean and Senior Lecturer School of Science and Technology Wawasan Open University Penang, Malaysia
- 3. Curation Content repositories Portal repositories Content and portal repositories McGreal, R. (2010). Open Educational Resource Repositories: An Analysis. Proceedings: The 3rd Annual Forum on e-Learning Excellence, 1-3 February 2010, Dubai, UAE.
- 6. LOM Casali, A., Deco, C., Romano, A. and Tomé, G. (2013) 'An Assistant for Loading Learning Object Metadata: An Ontology Based Approach', Interdisciplinary Journal of E-Learning and Learning Objects (IJELLO), vol. 9, p. 11.
- 7. DCMI the DCMI resource model Source: http://dublincore.org/documents/abstract-model/ (29/08/2013)
- 9. Some Existing Solutions • Federated Search: BRENHET2; OpeScout; Global Learning Object Brokered Exchange (GLOBE); and Pearson’s Project Blue Sky. • Semantic Search: OER-CC ontology; the “Assistant” prototype; the “Folksemantic” project; and “Agrotags”.
- 11. Semantic Search Disease Prevention Vitamins Nutrition Apples Fiber Varieties Processed Products McIntosh Honeycrisp Juice Sauce Cider Pink Lady
- 13. Removing the Weakest Link
- 14. A Text Mining Algorithm READS LEARNS RECOMMENDS
- 15. What is OERScout
- 16. The ‘Bag of Words’
- 17. Term Dictionary
- 20. OERScout
- 22. About… Ishan Abeywardena Deputy Dean and Senior Lecturer, School of Science and Technology, Wawasan Open University, Penang, Malaysia • • • • MSc in Wireless Enterprise Business Systems, Brunel University, UK. MSc in Engineering Management, Brunel University, UK. BSc in Computer Science, Bangalore University, India. PhD Candidate in Computer Science, University Malaya, Malaysia. Areas of specialisation: text mining, metadata, faceted search Professional Member of – Institute of Electrical and Electronic Engineers (MIEEE) – British Computer Society (MBCS) – Institution of Engineering and Technology (MIET) – Microsoft Technology Associate (MTA) Official Profile: http://www.wou.edu.my/IshanAbeywardena.html Professional Profile: http://www.linkedin.com/in/ishansa Research Profile: http://www.researchgate.net/profile/Ishan_Abeywardena/ Tech Blog: http://www.ishantalks.com E-mail: ishansa@wou.edu.my