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Presentation at the EUAM Workshop in Lübeck, Germany - September 28, 2009
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
An adaptative framework for An adaptative framework for tracking Web-based Learning tracking Web-based Learning EnvironmentsEnvironments
Valentin Butoianu, Phillipe Vidal, Julien Broisin
Institut de Recherche en Informatique de Toulouse, France{butoianu, vidal, broisin}@irit.fr
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
ContextContextMass personalization
◦Students: adapt learning scenarios to each user
◦Instructors and designers: adapt their courseware to various users’ learning paths
=> Need to collect a large amount of attention metadata from Web-based Learning Environments
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Research issuesResearch issuesExisting tracking systems
◦Students’ online activities within LMS◦Discussion forums◦Chat, instant messaging, …
Main drawbacks:◦Specificity ◦Attention metadata enclosed into
systems being traced Prevents attention share, thus mass personalization
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• Uniform representation of attention metadata• An architecture promoting the share and reuse of attention metadata
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works4
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Our approach Our approach Model based approach to
represent attention metadata produced by various learning systems◦High level of abstraction◦Extensible
Reuse of WBEM, a « de facto » standard proposed by DMTF
Dedicated to the network, systems and applications management.
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Modeling systems and Modeling systems and resourcesresources
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Modeling users’ activitiesModeling users’ activities
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works8
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Architecture Architecture
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LEARNING ENVIRONMENT TRACKING ENVIRONMENT
TRACKINGREPOSITORY
TR
AC
KIN
G M
AN
AG
ER
Learning Application 1
Learning Application 2
Learning Application 3
Management Application
SOAPHTTP
SOAPHTTP
MIDDLEWARE
SOAPHTTP
SO
AP
INT
AG
EN
TA
GEN
TA
GEN
T
SO
AP
INT
SO
AP
INT
SO
AP
INT
TR
AC
KIN
G
SER
VIC
E
WB
EM
IN
TER
FA
CE
SO
AP
INTER
FA
CE
MO
DEL
MA
NA
GEM
EN
T
SER
VIC
E
SO
AP
IN
TER
FA
CE
WB
EM
IN
TER
FA
CE
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Model management Model management serviceserviceDedicated to attention classesEasy specialization of generic
models to represent any attention data◦Define new classes and/or properties◦Modify or delete existing classes and/or
propertiesRules:
◦Apply to classes inheriting only from the generic models
◦Deny modifications of the generic models
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Tracking serviceTracking serviceDedicated to attention instancesSetTrace method: self-adapt to the
evolution of the model by creating a XML Schema conform to the model.
GetTrace method: explores the tracking repository in order to get an unified view of all attention metadata
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This methods are self-adapting to the attention model
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works12
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Modeling specific systems and Modeling specific systems and resources resources
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Learning objects’ Learning objects’ activitiesactivities
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Specific architectureSpecific architecture
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LEARNING ENVIRONMENT TRACKING ENVIRONMENT
TRACKINGREPOSITORY
TR
AC
KIN
G M
AN
AG
ER
Management Application
SOAPHTTP
SOAPHTTP
MIDDLEWARE
SOAPHTTP
SO
AP
INT
AG
EN
TA
GEN
T
SO
AP
INT
SO
AP
INT
TR
AC
KIN
G
SER
VIC
E
WB
EM
IN
TER
FA
CE
SO
AP
INTER
FA
CE
MO
DEL
MA
NA
GEM
EN
T
SER
VIC
E
SO
AP
IN
TER
FA
CE
WB
EM
IN
TER
FA
CE
OPENPEGASUS
Learning Application 1
Learning Application 2
gSOAP
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Use case: Consultation of a LO Use case: Consultation of a LO from Moodlefrom Moodle
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Moodle Tracking service
Tracking manager
Tracking repositor
y
1.Request model classes2.Return model classes
3.Build XML Schema4.Consult
document
5.Build XML trace
6.Send XML trace
7.Validate XML trace
8.Build CIM Instances9.Send CIM
Instances10.Insert instances into repository
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
PlanPlan
1.Uniform representation
2. An opened and distributed architecture
3.Experimentation with Learning Objects
4.Conclusions and future works17
Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
Conclusions and future Conclusions and future worksworksA framework to manage attention
metadata◦ Integrated within ubiquitous operating systems
(Windows XP, Linux)◦ Easy to satisfy multiple objectives: model
management service◦ Facilitates share and reuse :
Externalisation of attention metadata Self - adapting tracking service
Automated update of agents according to the model
Use Manager to Manager communicationExploit the collected traces: intelligent
tutoring systems, recommendation systems
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Exploitation of Usage and Attention Metadata (EUAM 09), 28 September 2009, Lübeck, Germany
QuestionQuestionss
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