doctoral seminar (dbis rwth aachen)

Lehrstuhl Informatik 5(Informationssysteme)

Prof. Dr. M. JarkeI5-ZP-310810-1

TeLLNet

Zina PetrushynaDoctoral Seminar, August 31, 2010

Self-Modeling and Self-Reflection of E-learning Communities



TeLLNet Contents

Motivation Self-Modeling and Self-Reflection Methodology Use Cases Application Example: Mediabase 2.0 Results and Current Work Conclusion & Future work



TeLLNet

Long Tail of learning [BrAd08]: many niches- What are properties of communities?- Can a community self-reflect in the Long Tail? - How the community express purposes and goals?- What happens if goals of the community are fulfilled?

Motivation

Niches are: learning partners, documents, media, communities

Spanish language learners

communityRussian language

learners community



TeLLNet

Self-Modeling & Self-Reflection Methodology

Activity Theory [Enge87]

Actor Network Theory [Lato05]

Community of Practice [Weng98]

disturbance

disturbancedisturbance

++/-

-

Self-modeling phase contributes to self-reflection phase and vice versa



TeLLNet Learner Interaction Model

interactions

Information

Intentions

CoP Learner

Community intentions -> community mission (Joint Enterprises (JE))

Community information -> knowledge repository (Shared Repertoire (SR))

Interactions between CoP and Learner -> Mutual Engagement (ME)

[ROLE Deliverable 7.1-7.2]

Combination of Community of Practice and Activity Theory shows common aspects



TeLLNet

Teacher

Learner

Media

Website of the course

Discussion forum

ISA

ISA

announcements

Post announcements

Interacting with peers

Artefacts

DD

D

D

DD

create,find, reuse

D

D

evaluateD DActor

Goal

Resource

D

Agent

Actor

Goal dependency

Resource dependency

Task dependency

Dependency link(from depender to dependee)

ISA connection (is a)

Task

ISA

Agent

Modeling of Community Based on Competences and SNA

[KlPe10]

Agent- and goal-oriented modeling is appropriate for closing the gap between current and desired situation in a community



TeLLNet

Modeling of Community Based on Competences and SNA

Teacher

Learner

Media

Website of the course

Discussion forum

announcements

Post announcements

Interacting with peers

Artefacts:Essays

DD

D

create,find, reuse D

evaluate

Goal

Resource

D

Agent

Actor

Role

Goal dependency

Resource dependency

Task dependency

Softgoal dependency

ISA connection (is a)

Task

ISA

Agent

ISA

Communicator

Organize

an event

D

D

To focus on

professional

competences

D

D

D D

DD

softgoalD D

Role

Actor



TeLLNet Use Cases1. eTwinning Database: collaborative social networks2. ROLE Test-beds: activity-based social networks

exploring of learning activities utilizing widgets performed by 5 test bed partners from different areas

3. Wikipedias: author/article networks with small world phenomenon– 10x106 contributors, 8,5x107 pages and 2,1x108 revisions collected over 7 years– Correlations between immigration flow and Wikipedia contributors– Similar behavior of editing / revising contributor activities different Wikipedias

4. Mediabase 2.0: media networks gathered by Community Information Systems Group

– 563,130 actors gathered starting from Oct. 10th, 2005 until today – Social network measures and patterns in the course of time– Named entity recognition using Linked Data Initiative

TeLLNet



TeLLNet Application Example: Mediabase 2.0

Mediabase

RDF Repository

Mediabase

PALADIN II PALADIN II

RDF Repository

Linked Data



TeLLNet

IndustryTerm Topic of the e-mail

Social software, web-based learning CFP for the workshop

Educational gaming applications, social software, web-based … CFP for the workshop

Test tools, online meeting, autorization tools Stonehenge mail

Done: Named Entity RecognitionPREFIX calaispred:http://s.opencalais.com/1/pred/

PREFIX calaistype:http://s.opencalais.com/1/type/em/e/

PREFIX calaiscategory:http://s.opencalais.com/1/type/cat/

PREFIX calaisrelation:<http://s.opencalais.com/1/type/em/r/>

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

Entity typesCategories

Predicate types

Relations

select ?name where {?person rdf:type calaistype:IndustryTerm. ?person calaispred:name ?name .}



TeLLNet Done: Named Entity Recognition

Country Topic of the e-mail

Germany, Slovenia, France, Spain CFP for the workshop

Germany, France, The Netherlands, Austria, Unites States, Canada, Australia, United Kingdom, China, Spain, Greece

CFP for the workshop

Switzerland, Germany Developer Camp mail

Germany General Essembly mail

Test tools, online meeting, autorization tools Stonehenge mail

PREFIX calaispred:http://s.opencalais.com/1/pred/




PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> select ?name where {?person rdf:type calaistype:Country. ?person calaispred:name ?name .}




Category - relevance Topic of the e-mail

Technology_Internet – 0.9 CFP for the workshop

Hospitality_recreation -1, religion-belief – 0.96

Information about General assembly

Technology_Internet CFP for the workshop

Human interest – 1, Hospitality_recreation – 0.8

Farewell mail from a colleague

Human interest – 1, Hospitality_recreation – 0.8

Answer to a farewell mail

select ?category, ?relevance where {?x rdf:type calaiscategory:DocCat . ?x calaispred:categoryName ?category . ?x calaispred:score ?relevance}









PersonEmailAddress Topic of the e-mail

Hans-Christian Schmitz <[email protected]

General Assembly mail

Martin Wolpers <[email protected]>Ingo Dahn <[email protected]>

Job Offer in Koblenz

Maren Scheffel <[email protected]> Stonehenge mail

select ?emailaddress, ?name where {?x rdf:type calaisrelation:PersonEmailAddress . ?x calaispred:person ?personHash . ?x calaispred:emailaddress ?emailaddresshash . ?personHash rdf:type calaistype:Person . ?personHash calaispred:name ?name. ?emailaddresshash rdf:type calaistype:EmailAddress . ?emailaddresshash calaispred:name ?emailaddress.}select ?name where {?person rdf:type calaistype:Product. ?person calaispred:name ?name .}








TeLLNet In Progress: SNA & concept mining

t

: ??? : new comers : expert friends : experts

: rising star: new comers: expert friends: experts

Mailing list communication Network of links in a blog

Category:Health, EducationConcepts: Medical conditions

Category:HealthConcepts: Medical conditions ...

Category: Education



TeLLNet

Simulation 65 Teacher profiles including:

– type of a school (secondary, primary) – location (German speaking countries)– language family– themes of teaching (Math, Physics)– tools used (Skype, Matlab, Photoshop)..

Two teachers are connected if their profiles match each other – until a Nash Equilibrium is reached

TeLLNeteTwinning Database: collaborative social networks

– 135,351 teachers and 36,099 connections (projects,twin, comments)– game-based simulation of network formations– competence management of learners using Social Network Analysis

TeLLNet



TeLLNet Diploma thesis MA: Application of Game Theory in the Long Tail of Learning MA: Recognizing People, Places, Conferences and Events in

the Web 2.0 MA: Culture Of Wikis: Dynamic Network Analysis Approach

In Progress DA: Competence Management with Social Network Analysis in the eTwinning Database

In Progress DA: Dynamic Influence Network Models and Weak Signals in Social Media

In Progress DA: Mining of community learning goals



TeLLNet Conclusion Agent- and goal-oriented modeling is appropriate for

closing the gap between current and desired situation in a community

Self-modeling phase contributes to self-reflection phase and vice versa

Combination of Community of Practice and Activity Theory shows common aspects



TeLLNet Future Work Consolidation for theoretical framework Modeling:

– how does the Self-modeling phase contribute to Self-analysis phase and vice versa

– assessment and utilizing of learners‘ competences in modeling phase

Experiments: – compare different approaches of analysis of community actors – detection of communities, their properties and components

Evaluation Thesis writing

2010

2011

2012