Presentation held at the "exploitation of usage and attention metadata" workshop (EUAM09) on Sep. 28, 2009 in Lübeck, Germany

1. Perspectives on Tag-clouds for Supporting Reflection in Self-organized Learning Christian Glahn Marcus Specht and Rob Koper Open University of the Netherlands Exploitation of Usage and Attention Metadata Workshop (EUAM’09) Lübeck, 28 September 2009

2. This presentation is about ... Tagging ... and ...

3. Tag-clouds

4. Wait!

5. How is this related to attention metadata?

6. Applying attention metadata to the domain of learning

7. Tags and Attention Tags are explicit interest expressions (Claypool, Le, Wased, & Brown, 2001) Visualisations of tag usage can highlight subconscious aspects of learning (Glahn, Specht, & Koper, 2009b) Aggregations of tag usage provide attention descriptors of learning processes

8. What is described by “attention descriptors”? The Open Question for Attention Metadata

9. The Open Question for Attention Metadata What are the practical (im|ap)plicationsfor using “attention descriptors”?

10. How is this related to attention metadata? 

11. Self-controlled Unguided Incidental Self-organized learning Unstructured Embedded in practice

12. Self-controlled Unguided Knowledgeworkers’learning Unstructured Embedded in practice

13. How to supportincidental learningof knowledge workers?

14. Reflection is essential forthe learning of practitioners Planning Monitoring Evaluating (Schön, 1983)

15. Reflection needs Information

16. Reflection needs Location Context Peers Processes Projects Presence Collaboration Concepts Time Participation Events

17. Location Context Peers Processes Projects Presence Collaboration Concepts can be Identified Time Participation Events

18. Location Context Peers Processes Projects Presence Collaboration Concepts can beConstructed Time Participation Events

19. Context construction principles for reflection support PerspectiveandContrast

20. In other words ... Putsets of attention descriptorsinto relation

21. ReScope (Glahn, Specht, & Koper, 2008)

22. Encode two sub-sets of Delicious.com tagsinto one tag-cloud. The idea behind ReScope

23. The hypothesis Depending on the sub-sets reflection will focus on different aspects.

24. Learning Centred Context Framework

25. Case 1: Personal Focus

26. Learning Centred Context Framework

28. Low activity times are over representedProposed Alternative Global tag usage Compare against global tag usage of last visit (e.g. > 1 day)  Emphasize recency

29. What are the differences of the impact onreflection and motivationfor personal information management?

30. Case 2: Peer Focus

31. Shared Interestsand Network Trends

32. Participation Focus Shared Interests Social tag usage in the network Social value of personal tags Network Trends Recent Social tag usage in the network Personal usage of social tags

33. Learning Centred Context Framework

37. Thank you for your attention Christian Glahn CELSTEC Open University of the Netherlands E-Mail: christian DOT glahn AT ou DOT nl http://www.ou.nl - http://celstec.org http://lo-f.at/glahn/ - http://www.slideshare.com/phish108