OER Curation and Search - The Issues at Hand


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This technical workshop focuses on the current issues faced by the academic community, especially in Open and Distance Learning (ODL), with respect to searching for credible, relevant and academically useful open educational resources (OER). The workshop will cover four key aspects: (1) the current OER search dilemma; (2) the concept of metadata; (3) existing search methods; and (4) useful OER search tools. Among the topics covered will be the current problem within the context of OER search, the limitations of Google and native search mechanisms, federated search, semantic search, metadata standards and some large-scale solutions to the OER search dilemma. The last part of the workshop will introduce the OERScout search framework which uses text mining techniques and faceted search to recommend Desirable OER for teaching and learning.

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OER Curation and Search - The Issues at Hand

  1. 1. OER Curation and Search The Issues at Hand Conference Workshop Inaugural International Conference on Open and Flexible Education (ICOFE 2014) 17th January 2014
  2. 2. 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. 3. Outline • The Current OER Search Dilemma • The Concept of Metadata • Existing Search Methods • Useful OER Sources
  4. 4. The Current OER Search Dilemma
  5. 5. 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. 6. So…how do I find the material I need for my teaching?
  7. 7. Google “Advanced Search” results for OER on Chemistry (24th May 2012)
  8. 8. Literature • ...The problem is in finding the resources, and more correctly finding the “right” resources. Using a regular search engine like Google to find content is not always a viable option as it will generate too many answers. There is, hence, a need to easily find relevant content...” (Hatakka, 2009) • “searching this way (using existing search engines such as Google) might be a long and painful process as most of the results are not usable for educational purposes” (Pirkkalainen & Pawlowski, 2010) • No single search engine is still able to locate resources from all the OER repositories (West & Victor, 2011) • One of the major barriers to the use and re-use of OER is the difficulty of finding quality OER matching a specific context (Dichev & Dicheva, 2012) • “…the problem with open content is not the lack of available resources on the Internet but the inability to locate suitable resources for academic use” (Unwin, 2005).
  9. 9. Native search mechanisms perhaps?
  10. 10. Native Search in Repositories Identify which material to look for (e.g. integration, C++ programming) Identify the search queries (e.g. “undergraduate mathematics”) Locate repository (word of mouth, some link somewhere, go to the more popular repositories) Run multiple queries to find resources Read each resource to identify the usefulness (openness, access, relevance) Identify useful resources Repeat steps 3-6 on multiple repositories (hundreds to thousands…..)
  11. 11. Frustrated??
  12. 12. The Declaration i. Facilitate finding, retrieving and sharing of OER. Encourage the development of userfriendly tools to locate and retrieve OER that are specific and relevant to particular needs. (UNESCO Paris OER Declaration, 2012) UNESCO. (2012). Paris OER Declaration, Retrieved September18, 2012 from http://www.unesco.org/new/fileadmin/MULTIMEDIA/HQ/CI/CI/pdf/Events/Paris%20OER%20Declaration_01.pdf
  13. 13. How useful is a resource really?
  14. 14. Measures of usefulness Desirability Relevance Openness Accessibility
  15. 15. What is Desirability? Less useful resources are less desirable for teaching and learning needs….
  16. 16. Concept of Metadata
  17. 17. Metadata IEEE-LOM DCMI
  18. 18. 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.
  19. 19. DCMI the DCMI resource model Source: http://dublincore.org/documents/abstract-model/ (29/08/2013)
  20. 20. LRMI http://creativecommons.org/tag/learning-resource-metadata-initiative
  21. 21. However…the issue is
  22. 22. Existing Search Methods
  23. 23. 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”.
  24. 24. Federated Search User Metadata Federation Organisation Institution Repos Repos Consortium Institution Repos Repos Institution Repos Repos
  25. 25. Semantic Search Disease Prevention Vitamins Nutrition Apples Fiber Varieties Processed Products McIntosh Honeycrisp Juice Sauce Cider Pink Lady
  26. 26. Yeah…but which one do I choose?
  27. 27. http://www.pearsonlearningsolutions.com/pearson-bluesky/
  28. 28. http://www.globe-info.org/
  29. 29. OERScout
  30. 30. Useful OER Sources
  31. 31. Thanks! Questions? I will also be happy to answer your queries if you e-mail me via ishansa@wou.edu.my
  32. 32. Acknowledgements I acknowledge the support provided by Dr K S Yuen, Chair of the conference organising committee; Dr K C Li, Vice-chair of the conference organising committee; and Open University of Hong Kong (OUHK) by extending full sponsorship for may participation at the Inaugural International Conference on Open and Flexible Education (ICOFE 2014).
  33. 33. 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
  34. 34. Media Sources • • • • • • • • • • http://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Multimedia_icon.png/120px-Multimedia_icon.png http://upload.wikimedia.org/wikipedia/commons/thumb/2/25/Nuvola_multimedia.png/120px-Nuvola_multimedia.png http://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Open_Clip_Art_Library_Piggy_Bank.svg/120pxOpen_Clip_Art_Library_Piggy_Bank.svg.png http://commons.wikimedia.org/wiki/File:Active_learning_-_jigsaw_map_of_Southeast_Asia.jpg http://commons.wikimedia.org/wiki/File:%D0%9A%D0%BE%D0%BF%D0%B8%D1%8F_800px-Ua-er9m-558-20070728.jpg http://commons.wikimedia.org/wiki/File:Public_Bus,_Cairo_02.JPG http://commons.wikimedia.org/wiki/File:Polski_Fiat_126p_in_Krak%C3%B3w_(MWM_2010).jpg http://commons.wikimedia.org/wiki/File:PLM_2011_64_Jetalliance_Lotus.jpg http://www.youtube.com/watch?v=8YkbeycRa2A hydrodictyon.eeb.uconn.edu