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Blockchain Based LEM for Sustainable Learning Economy
- 1. Copyright © 2019 CCC-TIES All rights reserved. 1
May 2020
Masumi Hori, Seishi Ono, Kensuke Miyashita, Toshihiro Kita and Takao Terano
E-mail: hori@cccties.org
Toward Sustainable Learning
Economy through a Block-
Chain Based Management
System
CSEDU2020
- 2. Copyright © 2019 CCC-TIES All rights reserved. 2
Index
1. Learning Economy Model (LEM)
2. Competency Based Learning
(CBL) in the LEM
3. Attributes of CBL
4. Conclusion
- 3. Copyright © 2019 CCC-TIES All rights reserved. 3
Learning Economy Model
(LEM)
Management of
Intellectual Property
Management of
Intellectual Property
Goods & Services Market
Knowledge
Knowhow Skill
Factor Market
BlogsSNS
Awareness
Blockchain
Learners Fabricants
- 4. Copyright © 2019 CCC-TIES All rights reserved. 4
SNS
CHiLO Knowledge
Blockchain
(Hyperledger
Fabric)
Agent
OUTPUT Method
Learners
Fabricant
MRC (Metadata of
resources configuration)
Meta Data Meta Data Meta Data
Contract Contract Contract
- 5. Copyright © 2019 CCC-TIES All rights reserved. 5
Experimental results
Effect of learning support system
based on learning economy
Externalize know-how and tacit knowledge
Virtual currency as an indicator for
proactiveness
▸ Evaluation of learning outcomes
Virtual currency motivates learning
▸ Motivation
- 6. Copyright © 2019 CCC-TIES All rights reserved. 6
The Challenge of LEM
Challenge
Takes time to assure the quality of the
knowledge in the market
Solution
Provide well thought out competency-
based learning (CBL)
- 7. Copyright © 2019 CCC-TIES All rights reserved. 7
Installing CBL in LEM
Management of
Intellectual Property
Management of
Intellectual Property
CBL AgentLearners
Goods & Services Market
Factor Market
Blockchain
CBL
(Competency Based Learning)
Behavioral data
Learning logs
Self Assessment
(1)
(2)
(3) (4)
Knowledge
DB
Academic
Papers
OER
- 8. Copyright © 2019 CCC-TIES All rights reserved. 8
Research for competency
graph structure
Specimen : iCompetency Dictionary (iCD)
▸ A freely available competency dictionary
▸ Consists of 4,500 task dictionaries
▸ 10,000 skill dictionaries included
▸ Created for human IT development
▸ Established by the Information Processing Agency
Japan.
Validation issues
Examination of iCD parameter of property
Finding the graph structure peculiar to competency
- 9. Copyright © 2019 CCC-TIES All rights reserved. 9
Bipartite graph
Task-nodes(n=639) Skill-nodes(n=491)
• Edges concentrate on
specific nodes
Edges
- 10. Copyright © 2019 CCC-TIES All rights reserved. 10
Order distribution
Task-nodes Skill-nodes
Degree: Number of edges connected to the node
Hub Hub
- 11. Copyright © 2019 CCC-TIES All rights reserved. 11
Power distribution
Scale-free network structure
R2=0.75,5.40-1.20log(x) R2=0.78,5.13-1.27log(x)
Task-nodes Skill-nodes
- 12. Copyright © 2019 CCC-TIES All rights reserved. 12
Discussion : Scale-free network
Complex network structure
- GAFA, air traffics, Bacon numbers
Hub
- Edges concentrate on specific nodes
Growing network
- New nodes are likely to connect to hubs
- Network structure is robust.
- 13. Copyright © 2019 CCC-TIES All rights reserved. 13
New nodes connect to
existing hubs at a high rate
2014 version
Task-nodes
(n=639)
Skill-nodes
(n=491)
Task-nodes
(n=495)
Skill-nodes
(n=424)
2018 version
New nodes added
- 14. Copyright © 2019 CCC-TIES All rights reserved. 14
Conclusion
Competency is the structure of a complex
network
Task-Skill graph is scale-free
Small world of skills and tasks monograph
The centrality of the graph indicates the importance of
competency
LEM using blockchain and CBL
LEM is not required teachers, just keep learners motivated
CBL in LEM can provide competencies tailored to learners'
desired learning
- 15. Copyright © 2019 CCC-TIES All rights reserved. 15
Please feel free to ask questions.
hori@cccties.org
Thank you.