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Technology to enhance 
the Cognitive Ecosystems? 
• Designing technology that blends into work 
practices and supports informal learning is a 
major challenge 
http://Learning-Layers-eu 
1
Learning Layers 
Scaling up Technologies for Informal Learning in SME Clusters 
Scaling Informal Learning at the 
Workplace 
http://Learning-Layers-eu 
Pablo Franzolini pablof@cimne.upc.edu 
Presentation base on: Keynote give at the International Conference on Web-based Learning (ICWL 2014) 
16/08/14, Tallinn, Estonia, by Tobias Ley, Institute of Informatics,Tallinn University
Scaling Learning? 
http://Learning-Layers-eu 
3 
Villemard, 1910: À l' École, Bibliotèque national de France 
http://expositions.bnf.fr/utopie/grand/3_95b1.htm
The Dilemma of Informal 
Learning at the Workplace 
How do people learn at the workplace? 
• Ask colleagues, search for help, try 
things out, learn from experience 
• Learning is informal, connected to 
work practices, multi-episodic, just-in 
time [Hart 2011, Kooken 2009] 
How do learning technologies look like? 
• follow traditional training models 
• based on direct classroom instruction 
and courses transfered to the screen 
[Kraiger 2008] 
http://Learning-Layers-eu 
individualized 
highly effective 
contextualized 
motivating 
does not scale 
not persistent 
few benefit 
expensive
Mechanisms for Scaling Informal 
Learning 
• Looking at Learning in Work 
Practices 
– [Eraut and Hirsch 2007, Maier 
2009, Attwell 2003, Kooken et al. 
2009, Collin 2006] 
• Unlock Peer Production 
– [Schmidt et al. 2009, Maier & 
Schmidt 2007] 
• Scaffolding for Meaningful Learning 
– [Ley et al. 2010, Lindstaedt et al. 
2010, Siadaty et al. 2010, Pata, 
2006] 
• Scale through Regional Clusters 
– [Deitmer and Attwell 2000] 
http://Learning-Layers-eu
Learning in Work Practices 
SCENARIOS AND DESIGN-BASED 
RESEARCH 
http://Learning-Layers-eu 
6 
Ley, T., Cook, J., Dennerlein, S., Kravcik, M., Kunzmann, C., Pata, K., Purma, J., Sandars, J., Santos, P., 
Schmidt, A., Al-Smadi, M., Trattner, C. (2014). Scaling informal learning at the workplace: a model and 
four designs from a large-scale design-based research effort. British Journal of Educational Technology, 
in press.
Building & Construction 
http://Learning-Layers-eu 
Seattle Municipal Archives 
http://www.flickr.com/photos/seattlemunicipalarchives/7165372144/ 
http://creativecommons.org/licenses/by/2.0/legalcode
One possible 
Construction Scenario 
X3-PJC X3-PVQ 
X3-POZ PLC Equipment 
Straw Building 
http://Learning-Layers-eu 
How To 
Explaining the use of a new 
construction technique and 
materials on site 
Making video material available 
Use of video recording and on site through QR tags 
annotation 
Further questions on the use of 
the technique connected to site 
Material, questions and best 
practices collected and 
discussed 
Collection transformed into 
instructional material to 
enhance traditional training
http://Learning-Layers-eu 
Seattle Municipal Archives 
http://www.flickr.com/photos/seattlemunicipalarchives/5765842244/ 
http://creativecommons.org/licenses/by/2.0/legalcode 
Healthcare
One possible 
Healthcare Scenario 
Two practice staff visit a 
NHS training on a new 
guideline for dementia 
Staff collect materials from training and 
further research for their revalidation 
X3-PJC X3-PVQ 
X3-POZ Dementia 
http://Learning-Layers-eu 
Other staff 
ask questions 
about the guideline 
Material and questions evolve 
into a local implementation 
plan for the practice 
Other regional practices and the 
CSU join the effort to learn 
about implementation 
problems and practices 
Implementation Plan 
Guideline
http://Learning-Layers-eu 
Seattle Municipal Archives 
http://www.flickr.com/photos/seattlemunicipalarchives/8978702527/ 
http://creativecommons.org/licenses/by/2.0/legalcode 
How We Do Research
Technologies should enhance the 
Cognitive Ecosystem 
• Designing technology that blends into work 
practices and supports informal learning is a 
major challenge 
• Emergence of meaning is heavily dependent 
on shared artefacts and practices 
• An ecosystem of tools can be integrated by 
technologies that learn about meaning in a 
social context 
http://Learning-Layers-eu 
12
Contextual Inquiry & 
Design-based Research 
http://Learning-Layers-eu 
13 
http://learning-layers.eu/learning-layers-visits-doctors-and-construction- 
workers/
Contextual Inquiry & 
Design-based Research 
http://Learning-Layers-eu 
14 
http://learning-layers.eu/focus-groups-context/ 
context cards 
Personas 
user stories 
stories of contextual factors
Scaling Informal Learning: 
Project Architecture 
Workplace Learning Layer 
Integration through Workplace Learning Practices 
Architecture & Integration Layer 
Integration through Common Infrastructure 
X3-PJC X3-PVQ 
X3-POZ PLC Equipment 
http://Learning-Layers-eu 
Deployment & Sustainability 
Scaling in Regional Clusters 
15 
Interaction Layers: An Ecosystem of Tools 
Social Semantic Layer 
Integration through Shared Meaning 
Interacting with 
Physical Objects 
Interacting 
with People 
Interacting with 
Digital Materials 
Straw Building How To
Scaling Informal Learning Interactions 
AN ECOSYSTEM OF TOOLS 
TO SUPPORT INFORMAL 
LEARNING 
http://Learning-Layers-eu 
16 
Ley, T., Cook, J., Dennerlein, S., Kravcik, M., Kunzmann, C., Pata, K., Purma, J., Sandars, J., Santos, P., 
Schmidt, A., Al-Smadi, M., Trattner, C. (2014). Scaling informal learning at the workplace: a model and 
four designs from a large-scale design-based research effort. British Journal of Educational Technology, 
in press. 
Tomberg, V., Smadi, M., Treasure-Jones, T., & Ley, T. (2013). A Sensemaking Interface for Supporting 
Doctor’s Learning at the Workplace – A Paper Prototype Study. In M. Divitini, T. Ley, S. Lindstaedt, V. 
Pammer, & M. Prilla (Eds.), Proceedings of ECTEL meets ECSCW 2013, the Workshop on Collaborative 
Technologies for Working and Learning, Sept. 21, 2013, Cyprus (pp. 54–58). Aachen: CEUR Workahop 
Proceedings. Retrieved from http://ceur-ws.org/Vol-1047/paper12.pdf
Two Examples 
http://Learning-Layers-eu 
17 
E-portfolio Bits and Pieces 
Boundary objects AchSo!
AchSo! Mobile Learning on the 
Construction Site 
http://Learning-Layers-eu 
18 
Video: http://vimeo.com/84383004 
Software: http://developer.learning-layers.eu/tools/ach-so/
Bits and Pieces - Sensemaking 
about Learning Experiences 
http://Learning-Layers-eu 
19 
Software: http://developer.learning-layers.eu/tools/bits-and-pieces/ 
Running Demo
Scaling Informal Learning: 
Project Architecture 
Workplace Learning Layer 
Integration through Workplace Learning Practices 
Architecture & Integration Layer 
Integration through Common Infrastructure 
X3-PJC X3-PVQ 
X3-POZ PLC Equipment 
http://Learning-Layers-eu 
Deployment & Sustainability 
Scaling in Regional Clusters 
20 
Interaction Layers: An Ecosystem of Tools 
Social Semantic Layer 
Integration through Shared Meaning 
Interacting with 
Physical Objects 
Interacting 
with People 
Interacting with 
Digital Materials 
Straw Building How To
Project 
Consortium 
Basiskarte: digitale-europakarte.de 
http://Learning-Layers-eu 
Project Coordination 
Learning Technology Research 
Scaling Partners 
Regional Application Clusters 
Health Care – Leeds 
Construction & 
Building – Bremen 
Technology Partners
Try our apps 
http://developer.learning-layers. 
eu/ 
http://Learning-Layers-eu
Design with us: 
http://odl.learning-layers.eu/ 
http://Learning-Layers-eu
Scaling Meaning Making 
SHARED MEANING IN 
ARTEFACT-MEDIATED 
COLLABORATION 
http://Learning-Layers-eu 
24 
Seitlinger, P., & Ley, T. (2014). Verbatim and semantic imitation in indexing resources on the Web: A 
fuzzy-trace account of social tagging. Applied Cognitive Psychology, in press. 
Seitlinger, P., & Ley, T. (2012). Implicit Imitation in Social Tagging: Familiarity and Semantic 
Reconstruction. In Proceedings of ACM SIGCHI Conference on Human Factors in Computing Systems 
(CHI 2012) (pp. 1631–1640). New York: ACM Press. 
Seitlinger, P., Kowald, D., Trattner, C., & Ley, T. (2013). Recommending Tags with a Model of Human 
Categorization. In Conference on Information and Knowledge Management, CIKM’13, Oct. 27–Nov. 1, 
2013, San Francisco, CA, USA. (pp. 2381–2386). New York: ACM Press. doi:10.1145/2505515.2505625 
Kump, B., Moskaliuk, J., Dennerlein, S., & Ley, T. (2013). Tracing knowledge co-evolution in a realistic 
course setting: A wiki-based field experiment. Computers & Education, 69, 60–70.
How shared meaning emerges in 
Artefact-Mediated collaboration 
• Networks of Meaning 
crystalize around a 
concrete thing (Verbeek, 2005) 
resulting in a Cognitive 
Ecosystem (Hutchins, 2010) 
• Shared Meaning is a 
result of social practices 
and negotiation (Wenger, 1998) 
• Semantic Stabilization 
happens over time as 
people describe things 
(Wagner et al., 2014) 
http://Learning-Layers-eu 
X3-PJC Lightning Solution 
25 
PLC Equipment 
How To Toilet 
X3-POZ
A Study using a collaborative 
bookmarking system 
• Students made use of a 
bookmarking system to 
– Collect and share 
bookmarks 
– Categorize and tag the 
bookmarks 
– Create a shared 
taxonomy of tags 
• Dynamic coupling leads to… 
– Alignment of 
interpretations 
– Alignment of tags 
(Fu et al., 2008, 2010, 2012) 
http://Learning-Layers-eu 
26
Research Questions 
1. Can we observe semantic stabilization in a 
small-scale collaborative setting? 
2. Can we influence semantic stabilization? 
3. Does semantic stabilization influence 
student learning? 
http://Learning-Layers-eu 
27
SOBOLEO Environment 
http://Learning-Layers-eu 
28 
Tag taxonomy 
Tag/concept 
description 
Chat 
Tagging widget
Design: 
Independent Variables 
Topic Duration Tag Specificity 
http://Learning-Layers-eu 
29 
“basic level shift”
Design: 
Dependent Variables 
• Semantic stabilization: 
Entropy of tag distribution 
at each new tag assignment t 
• Tag usage frequency 
– general, medium and specific tags 
• Strength of memory representations of tags 
– Free association test using tags as open probes 
http://Learning-Layers-eu 
30 
Ht = H * (1 - e-bt)
Topic duration influences 
semantic stabilization ... 
http://Learning-Layers-eu 
... but in an unexpected way! 
Ht is lower under the sd than ld condition 
(W = 8340.5, p < .001) 
Groups studying a shorter duration 
benfited from starting over from scratch 
after the topic switch
Semantic stabilization leads to 
the use of more specific tags 
Long duration Short duration 
Basic Level Shift: Increased use of medium and specific tags in both groups (X2(18) = 18.15, p < .05) 
Basic level shift is more pronounced under the sd than ld condition (X2(14) = 40.46, p < .001) 
http://Learning-Layers-eu 
basic 
level 
shift 
basic 
level 
shift
Semantic stabilization leads to 
stronger learning of specific tags 
http://Learning-Layers-eu 
Basic Level Shift in Both groups 
(F(2,21) = 28.4, p < .001) 
Basic level shift is more pronounced 
under the sd than ld condition 
(F(2,21) = 3.6, p < .05)
Discussion 
• Internal memory (association test) and external 
representations (use of tags) co-vary 
• Semantic Stabilization can be observed in small group 
http://Learning-Layers-eu 
settings 
• The quality of the shared representation (tag 
taxonomy) is more important than mere topic 
exposure 
• Social processes on the group level (semantic 
stabilization mediated by artefacts) have an influence 
on individual categorization and learning 
34
Scaling Informal Learning: 
Project Architecture 
Workplace Learning Layer 
Integration through Workplace Learning Practices 
Architecture & Integration Layer 
Integration through Common Infrastructure 
X3-PJC X3-PVQ 
X3-POZ PLC Equipment 
http://Learning-Layers-eu 
Deployment & Sustainability 
Scaling in Regional Clusters 
35 
Interaction Layers: An Ecosystem of Tools 
Social Semantic Layer 
Integration through Shared Meaning 
Interacting with 
Physical Objects 
Interacting 
with People 
Interacting with 
Digital Materials 
Straw Building How To
http://Learning-Layers-eu 
Who When Where What ... ... ... ... ... ... 
An Artefact 
Actor Network 
User 
Profile 
Resource 
Profile 
Topic 
Modeling 
Recommended 
Resource 
Each interaction 
increases the network ... 
... and is tracked in the history 
Trust and Social 
Network 
Traces of the Network History 
Knowledge is built by people 
interacting with other people and artefacts 
New Information displayed to 
Support User Interactions 
Intelligent Services 
derive new information 
1 
2 
3 
4 
5 
Who When Where What ... ... ... ... ... ... 
Who When Where What ... ... ... ... ... ... 
Who When Where What ... ... ... ... ... ... 
Whom to ask? What to read and watch? Who are the experts? What’s the quality? What do people talk about?
A recommender that mimics 
human thinking 
• How do you describe 
this resource? 
• A mechanisms that 
guesses the words that 
you will use 
• Two step process: 
– First generate meaning 
– Then produce words 
http://Learning-Layers-eu 
37 
Dementia 
Guideline 
NHS 
Seitlinger, P., Kowald, D., Trattner, C., & Ley, T. (2013). Recommending Tags 
with a Model of Human Categorization. In Conference on Information and 
Knowledge Management, CIKM’13, Oct. 27–Nov. 1, 2013, San Francisco, CA, 
USA. (pp. 2381–2386). New York: ACM Press. doi:10.1145/2505515.2505625
Learning Layers 
http://Learning-Layers-eu 
38 
Scientific Coordinator 
Tobias Ley 
Tallinn University 
Institute of Informatics 
tley@tlu.ee 
skype tobias_ley 
http://tobiasley.wordpress.com 
Learning Layers Project 
ICT EU-FP7, 12mEUR, 2012-2016 
Web: http://learning-layers.eu 
Software: http://github.com/learning-layers
http://Learning-Layers-eu 39
Blackboard delivered through TV 
(1930s) 
http://Learning-Layers-eu 
40 
http://www.gizmodo.com.au/2014/01/15-technologies-that-were-supposed-to-change-education-forever/
Extracting meaning from Pictures 
http://Learning-Layers-eu 
41
The Perspective of 
Human Computer Interaction 
http://Learning-Layers-eu 
42 
Understanding humans and computers as a system 
Making the system smarter and more productive

More Related Content

Learning Layers - Scaling up Technologies for Informal Learning in SME Clusters

  • 1. Technology to enhance the Cognitive Ecosystems? • Designing technology that blends into work practices and supports informal learning is a major challenge http://Learning-Layers-eu 1
  • 2. Learning Layers Scaling up Technologies for Informal Learning in SME Clusters Scaling Informal Learning at the Workplace http://Learning-Layers-eu Pablo Franzolini pablof@cimne.upc.edu Presentation base on: Keynote give at the International Conference on Web-based Learning (ICWL 2014) 16/08/14, Tallinn, Estonia, by Tobias Ley, Institute of Informatics,Tallinn University
  • 3. Scaling Learning? http://Learning-Layers-eu 3 Villemard, 1910: À l' École, Bibliotèque national de France http://expositions.bnf.fr/utopie/grand/3_95b1.htm
  • 4. The Dilemma of Informal Learning at the Workplace How do people learn at the workplace? • Ask colleagues, search for help, try things out, learn from experience • Learning is informal, connected to work practices, multi-episodic, just-in time [Hart 2011, Kooken 2009] How do learning technologies look like? • follow traditional training models • based on direct classroom instruction and courses transfered to the screen [Kraiger 2008] http://Learning-Layers-eu individualized highly effective contextualized motivating does not scale not persistent few benefit expensive
  • 5. Mechanisms for Scaling Informal Learning • Looking at Learning in Work Practices – [Eraut and Hirsch 2007, Maier 2009, Attwell 2003, Kooken et al. 2009, Collin 2006] • Unlock Peer Production – [Schmidt et al. 2009, Maier & Schmidt 2007] • Scaffolding for Meaningful Learning – [Ley et al. 2010, Lindstaedt et al. 2010, Siadaty et al. 2010, Pata, 2006] • Scale through Regional Clusters – [Deitmer and Attwell 2000] http://Learning-Layers-eu
  • 6. Learning in Work Practices SCENARIOS AND DESIGN-BASED RESEARCH http://Learning-Layers-eu 6 Ley, T., Cook, J., Dennerlein, S., Kravcik, M., Kunzmann, C., Pata, K., Purma, J., Sandars, J., Santos, P., Schmidt, A., Al-Smadi, M., Trattner, C. (2014). Scaling informal learning at the workplace: a model and four designs from a large-scale design-based research effort. British Journal of Educational Technology, in press.
  • 7. Building & Construction http://Learning-Layers-eu Seattle Municipal Archives http://www.flickr.com/photos/seattlemunicipalarchives/7165372144/ http://creativecommons.org/licenses/by/2.0/legalcode
  • 8. One possible Construction Scenario X3-PJC X3-PVQ X3-POZ PLC Equipment Straw Building http://Learning-Layers-eu How To Explaining the use of a new construction technique and materials on site Making video material available Use of video recording and on site through QR tags annotation Further questions on the use of the technique connected to site Material, questions and best practices collected and discussed Collection transformed into instructional material to enhance traditional training
  • 9. http://Learning-Layers-eu Seattle Municipal Archives http://www.flickr.com/photos/seattlemunicipalarchives/5765842244/ http://creativecommons.org/licenses/by/2.0/legalcode Healthcare
  • 10. One possible Healthcare Scenario Two practice staff visit a NHS training on a new guideline for dementia Staff collect materials from training and further research for their revalidation X3-PJC X3-PVQ X3-POZ Dementia http://Learning-Layers-eu Other staff ask questions about the guideline Material and questions evolve into a local implementation plan for the practice Other regional practices and the CSU join the effort to learn about implementation problems and practices Implementation Plan Guideline
  • 11. http://Learning-Layers-eu Seattle Municipal Archives http://www.flickr.com/photos/seattlemunicipalarchives/8978702527/ http://creativecommons.org/licenses/by/2.0/legalcode How We Do Research
  • 12. Technologies should enhance the Cognitive Ecosystem • Designing technology that blends into work practices and supports informal learning is a major challenge • Emergence of meaning is heavily dependent on shared artefacts and practices • An ecosystem of tools can be integrated by technologies that learn about meaning in a social context http://Learning-Layers-eu 12
  • 13. Contextual Inquiry & Design-based Research http://Learning-Layers-eu 13 http://learning-layers.eu/learning-layers-visits-doctors-and-construction- workers/
  • 14. Contextual Inquiry & Design-based Research http://Learning-Layers-eu 14 http://learning-layers.eu/focus-groups-context/ context cards Personas user stories stories of contextual factors
  • 15. Scaling Informal Learning: Project Architecture Workplace Learning Layer Integration through Workplace Learning Practices Architecture & Integration Layer Integration through Common Infrastructure X3-PJC X3-PVQ X3-POZ PLC Equipment http://Learning-Layers-eu Deployment & Sustainability Scaling in Regional Clusters 15 Interaction Layers: An Ecosystem of Tools Social Semantic Layer Integration through Shared Meaning Interacting with Physical Objects Interacting with People Interacting with Digital Materials Straw Building How To
  • 16. Scaling Informal Learning Interactions AN ECOSYSTEM OF TOOLS TO SUPPORT INFORMAL LEARNING http://Learning-Layers-eu 16 Ley, T., Cook, J., Dennerlein, S., Kravcik, M., Kunzmann, C., Pata, K., Purma, J., Sandars, J., Santos, P., Schmidt, A., Al-Smadi, M., Trattner, C. (2014). Scaling informal learning at the workplace: a model and four designs from a large-scale design-based research effort. British Journal of Educational Technology, in press. Tomberg, V., Smadi, M., Treasure-Jones, T., & Ley, T. (2013). A Sensemaking Interface for Supporting Doctor’s Learning at the Workplace – A Paper Prototype Study. In M. Divitini, T. Ley, S. Lindstaedt, V. Pammer, & M. Prilla (Eds.), Proceedings of ECTEL meets ECSCW 2013, the Workshop on Collaborative Technologies for Working and Learning, Sept. 21, 2013, Cyprus (pp. 54–58). Aachen: CEUR Workahop Proceedings. Retrieved from http://ceur-ws.org/Vol-1047/paper12.pdf
  • 17. Two Examples http://Learning-Layers-eu 17 E-portfolio Bits and Pieces Boundary objects AchSo!
  • 18. AchSo! Mobile Learning on the Construction Site http://Learning-Layers-eu 18 Video: http://vimeo.com/84383004 Software: http://developer.learning-layers.eu/tools/ach-so/
  • 19. Bits and Pieces - Sensemaking about Learning Experiences http://Learning-Layers-eu 19 Software: http://developer.learning-layers.eu/tools/bits-and-pieces/ Running Demo
  • 20. Scaling Informal Learning: Project Architecture Workplace Learning Layer Integration through Workplace Learning Practices Architecture & Integration Layer Integration through Common Infrastructure X3-PJC X3-PVQ X3-POZ PLC Equipment http://Learning-Layers-eu Deployment & Sustainability Scaling in Regional Clusters 20 Interaction Layers: An Ecosystem of Tools Social Semantic Layer Integration through Shared Meaning Interacting with Physical Objects Interacting with People Interacting with Digital Materials Straw Building How To
  • 21. Project Consortium Basiskarte: digitale-europakarte.de http://Learning-Layers-eu Project Coordination Learning Technology Research Scaling Partners Regional Application Clusters Health Care – Leeds Construction & Building – Bremen Technology Partners
  • 22. Try our apps http://developer.learning-layers. eu/ http://Learning-Layers-eu
  • 23. Design with us: http://odl.learning-layers.eu/ http://Learning-Layers-eu
  • 24. Scaling Meaning Making SHARED MEANING IN ARTEFACT-MEDIATED COLLABORATION http://Learning-Layers-eu 24 Seitlinger, P., & Ley, T. (2014). Verbatim and semantic imitation in indexing resources on the Web: A fuzzy-trace account of social tagging. Applied Cognitive Psychology, in press. Seitlinger, P., & Ley, T. (2012). Implicit Imitation in Social Tagging: Familiarity and Semantic Reconstruction. In Proceedings of ACM SIGCHI Conference on Human Factors in Computing Systems (CHI 2012) (pp. 1631–1640). New York: ACM Press. Seitlinger, P., Kowald, D., Trattner, C., & Ley, T. (2013). Recommending Tags with a Model of Human Categorization. In Conference on Information and Knowledge Management, CIKM’13, Oct. 27–Nov. 1, 2013, San Francisco, CA, USA. (pp. 2381–2386). New York: ACM Press. doi:10.1145/2505515.2505625 Kump, B., Moskaliuk, J., Dennerlein, S., & Ley, T. (2013). Tracing knowledge co-evolution in a realistic course setting: A wiki-based field experiment. Computers & Education, 69, 60–70.
  • 25. How shared meaning emerges in Artefact-Mediated collaboration • Networks of Meaning crystalize around a concrete thing (Verbeek, 2005) resulting in a Cognitive Ecosystem (Hutchins, 2010) • Shared Meaning is a result of social practices and negotiation (Wenger, 1998) • Semantic Stabilization happens over time as people describe things (Wagner et al., 2014) http://Learning-Layers-eu X3-PJC Lightning Solution 25 PLC Equipment How To Toilet X3-POZ
  • 26. A Study using a collaborative bookmarking system • Students made use of a bookmarking system to – Collect and share bookmarks – Categorize and tag the bookmarks – Create a shared taxonomy of tags • Dynamic coupling leads to… – Alignment of interpretations – Alignment of tags (Fu et al., 2008, 2010, 2012) http://Learning-Layers-eu 26
  • 27. Research Questions 1. Can we observe semantic stabilization in a small-scale collaborative setting? 2. Can we influence semantic stabilization? 3. Does semantic stabilization influence student learning? http://Learning-Layers-eu 27
  • 28. SOBOLEO Environment http://Learning-Layers-eu 28 Tag taxonomy Tag/concept description Chat Tagging widget
  • 29. Design: Independent Variables Topic Duration Tag Specificity http://Learning-Layers-eu 29 “basic level shift”
  • 30. Design: Dependent Variables • Semantic stabilization: Entropy of tag distribution at each new tag assignment t • Tag usage frequency – general, medium and specific tags • Strength of memory representations of tags – Free association test using tags as open probes http://Learning-Layers-eu 30 Ht = H * (1 - e-bt)
  • 31. Topic duration influences semantic stabilization ... http://Learning-Layers-eu ... but in an unexpected way! Ht is lower under the sd than ld condition (W = 8340.5, p < .001) Groups studying a shorter duration benfited from starting over from scratch after the topic switch
  • 32. Semantic stabilization leads to the use of more specific tags Long duration Short duration Basic Level Shift: Increased use of medium and specific tags in both groups (X2(18) = 18.15, p < .05) Basic level shift is more pronounced under the sd than ld condition (X2(14) = 40.46, p < .001) http://Learning-Layers-eu basic level shift basic level shift
  • 33. Semantic stabilization leads to stronger learning of specific tags http://Learning-Layers-eu Basic Level Shift in Both groups (F(2,21) = 28.4, p < .001) Basic level shift is more pronounced under the sd than ld condition (F(2,21) = 3.6, p < .05)
  • 34. Discussion • Internal memory (association test) and external representations (use of tags) co-vary • Semantic Stabilization can be observed in small group http://Learning-Layers-eu settings • The quality of the shared representation (tag taxonomy) is more important than mere topic exposure • Social processes on the group level (semantic stabilization mediated by artefacts) have an influence on individual categorization and learning 34
  • 35. Scaling Informal Learning: Project Architecture Workplace Learning Layer Integration through Workplace Learning Practices Architecture & Integration Layer Integration through Common Infrastructure X3-PJC X3-PVQ X3-POZ PLC Equipment http://Learning-Layers-eu Deployment & Sustainability Scaling in Regional Clusters 35 Interaction Layers: An Ecosystem of Tools Social Semantic Layer Integration through Shared Meaning Interacting with Physical Objects Interacting with People Interacting with Digital Materials Straw Building How To
  • 36. http://Learning-Layers-eu Who When Where What ... ... ... ... ... ... An Artefact Actor Network User Profile Resource Profile Topic Modeling Recommended Resource Each interaction increases the network ... ... and is tracked in the history Trust and Social Network Traces of the Network History Knowledge is built by people interacting with other people and artefacts New Information displayed to Support User Interactions Intelligent Services derive new information 1 2 3 4 5 Who When Where What ... ... ... ... ... ... Who When Where What ... ... ... ... ... ... Who When Where What ... ... ... ... ... ... Whom to ask? What to read and watch? Who are the experts? What’s the quality? What do people talk about?
  • 37. A recommender that mimics human thinking • How do you describe this resource? • A mechanisms that guesses the words that you will use • Two step process: – First generate meaning – Then produce words http://Learning-Layers-eu 37 Dementia Guideline NHS Seitlinger, P., Kowald, D., Trattner, C., & Ley, T. (2013). Recommending Tags with a Model of Human Categorization. In Conference on Information and Knowledge Management, CIKM’13, Oct. 27–Nov. 1, 2013, San Francisco, CA, USA. (pp. 2381–2386). New York: ACM Press. doi:10.1145/2505515.2505625
  • 38. Learning Layers http://Learning-Layers-eu 38 Scientific Coordinator Tobias Ley Tallinn University Institute of Informatics tley@tlu.ee skype tobias_ley http://tobiasley.wordpress.com Learning Layers Project ICT EU-FP7, 12mEUR, 2012-2016 Web: http://learning-layers.eu Software: http://github.com/learning-layers
  • 40. Blackboard delivered through TV (1930s) http://Learning-Layers-eu 40 http://www.gizmodo.com.au/2014/01/15-technologies-that-were-supposed-to-change-education-forever/
  • 41. Extracting meaning from Pictures http://Learning-Layers-eu 41
  • 42. The Perspective of Human Computer Interaction http://Learning-Layers-eu 42 Understanding humans and computers as a system Making the system smarter and more productive