edu-area in interacción (tenerife, 12 september 2014)
DESCRIPTION
Initial proposal to calculate reputation and relevance adapting the HITS algorithmTRANSCRIPT
Edu-AREATowards the Recognition of Relevance and
Reputation in Edu-AREA
Manuel Caeiro Rodríguez, Martín Llamas Nistal, Juan Manuel Santos Gago
Universidade Vigo
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About TELGaliciaTELGalicia: Technology Enhanced Learning in Galicia
Heterogeneous research groups:
✓ Pedagogical side: learning materials, competencies, learning profiles, advertisement, psychology, etc.
✓ Technological side: TEL systems, TEL standards, recommendations, natural language processing, etc.
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TELGalicia Goals
Contribute to teaching innovationFrom technology:
✓Content: video, simulation, games, etc.
✓Devices: tablets, computers, interactive whiteboards, etc.
✓Applications: editors, mapping, communication, collaboration, etc.
From pedagogy:
✓ Collaborative.
✓ Cooperative.
✓ Problem-based.
✓ Project-based.
✓ Flipped classroom.
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Proposal: Edu-AREA
Open Educational Activities, Resources and Experiences
www.edu-area.com4
Edu-AREA Principles
Web 2.x Application
Open Concept Social Curation
- A referatory for resources and a repository for activities and guides-Users provide information records freely
- Links among elements are created automatically in accordance to user operations
“Open Educational Resources (OERs) are any type of educational materials that ... any one can legally and freely copy, use, adapt and re-share them”
2012 Paris OER Declaration
use->copy->modify->share
Automatic classification and ordering or information records, attending to:
- User’s reputation:
+refs -> +reputation
-Relevance of information records
+use + reputation ->+ relevance
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Experiencies
GuidesActivitie
s
Boards
To know what to do in teaching and how
To be used in activities
what can teachers find?
To prepare lesson plans before teaching
To document what has been
done/produced
To organize and curate
Resources
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Resources
Elements to be used
✓ Content✓ Devices✓ Applications✓ Contributors✓ Trips
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ActivitiesProposals to carry out during
teaching/learning
✓ Guidelines for the teachers.
✓Linked to resources.
✓Templates are used to support different kinds of formats.
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Guides
To prepare the lesson plan Educational
Setting+
Technological Setting
+Activities
(Resources)
Guides 9
Experiences
To document what happened during teaching
✓ Reflections✓ Outcomes✓ Evidences
Linked to Guides
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Boards
Personal and social classification
✓ Curation: ‣ Categories ‣ Comments‣ Ratings‣ Tags
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What can teachers do?
✓Retain. “Own” personal copies✓Reuse. Without modifications.✓Revise. Modify, adjust, contextualize.✓Remix. Combine with other.✓Redistribute. Make public.
✓Explore✓View
Discover
5Rs
Contribute Curate
✓Register new resources✓Propose new activities✓Prepare new lesson plans
✓Classify✓Annotate✓Assess
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Reputation and Relevance
Definitions: Relevance: appropriate to the matter at hand.
Reputation: the opinion that others have about a person
Why do we need them?• Many concepts Rankings.
• Many users Experts.
• Curation Quality measurement.
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Reputation and Relevance
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Usages
• Retains• Reuses• Revisions• Remixes• Redistributions
Contributions
• New resources• New activities• New Lesson
plans
Curations
• Comments• Ratings• Collections
Reputation and Relevance
How to calculate?• Information retrieval:
• Page Rank. Relevance of a page globally.
• HITS (Hypertext Induced Topic Search). Relevance taking into account the topic.
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HITS
Pages are classified as:
Authorities. Relevant pages for a certain topic.
Hubs. Contain pointers to authority pages.
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HITS
Algorithm:• 1. Set ai, pi (i=1,..,n) to 1
• 2. Repeat until convergence
• 2.1
• 2.2
• 3. Normalize 17
Adapting HITS to Edu-AREA
Algorithm:• 1. Set ri, qi (i=1,..,n) to 1
• 2. Repeat until convergence
• 2.1
• 2.2
• 3. Normalize 18
Relevance (q)
Reputation (r)
Uses (C)
Conclusions
Edu-AREA is an ongoing project.1. Until now, design and implementation
2. Next stage involving users
• 3. Then, relevance and reputation
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Your contribution is welcome!
Thanks
www.edu-area.com
@edu-area
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