A service oriented approach for implementing an adaptation engine for e learning
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A SERVICE-ORIENTED APPROACH FOR IMPLEMENTING AN ADAPTATION ENGINE FOR E-LEARNING PowerPoint PPT Presentation


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A SERVICE-ORIENTED APPROACH FOR IMPLEMENTING AN ADAPTATION ENGINE FOR E-LEARNING. Dessislava Vassileva, Boyan Bontchev Department of Software Engineering, Sofia University “St. Kliment Ohridski”, BULGARIA. Agenda. Introduction to adaptive e-learning systems

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A SERVICE-ORIENTED APPROACH FOR IMPLEMENTING AN ADAPTATION ENGINE FOR E-LEARNING

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A service oriented approach for implementing an adaptation engine for e learning

A SERVICE-ORIENTED APPROACH FOR IMPLEMENTING AN ADAPTATION ENGINE FOR E-LEARNING

Dessislava Vassileva, Boyan Bontchev

Department of Software Engineering,

Sofia University “St. Kliment Ohridski”, BULGARIA

eLSE’2009


Agenda

Agenda

  • Introduction to adaptive e-learning systems

  • Our triangular conceptual model of AHS

  • Workflow of adaptive courseware delivery

  • Adaptive rules

  • Service-oriented architecture

  • Conclusions and further work

eLSE’2009


Introduction to adaptive e learning systems types of adaptation

Introduction to adaptive e-learning systems – types of adaptation

  • What is adapted?

    • Contents

    • Sequencing

    • User interface

    • Delivery channel

    • What else?

  • How it is adapted?

    • To different technology platforms used

    • To different learner characters (based on a learner model)

eLSE’2009


Introduction to adaptive e learning systems definition

Introduction to adaptive e-learning systems – definition

  • attempt to be different for different students and groups of students

  • attempt to be more adaptive by building a model of the goals, preferences, knowledge and performance of each individual student (user/learner model) and using this model throughout the interaction with the student in order to adapt to the needs of that student

eLSE’2009


Introduction to adaptive e learning systems techniques

Introduction to adaptive e-learning systems – techniques

  • Adaptive navigation – link hiding, sorting, annotation

  • Adaptive presentation - content of a page according to learner’s knowledge, goals, preferences, performance and etc.

  • Adaptive content selection – show, sort or hide search result content

  • Adaptive problem solution

  • Adaptive user interface

eLSE’2009


A triangular conceptual model of ahs 1 2

A triangular conceptual model of AHS 1/2

eLSE’2009


A triangular conceptual model of ahs 2 2

A triangular conceptual model of AHS 2/2

eLSE’2009


A sample course storyboard graph

A sample course storyboard graph

eLSE’2009


General process workflow

General process workflow

eLSE’2009


Activity workflow of the adaptation process

Activity workflow of the adaptation process

eLSE’2009


Rules controlling the adaptation process

Rules controlling the adaptation process

Three main groups:

  • starting rules - these rules describe learner knowledge and the initial conditions for starting a new course

  • pass-through graph rules – consist of rules for the graph crawling

  • rules updating learner model - related to learner knowledge and performance

    Example:

    k(user_performance(useri, subjectj, control_pointk, pass)) next_cp_path(useri, subjectj, control_pointk)

eLSE’2009


Service oriented architecture 1 2

Service-oriented architecture 1/2

eLSE’2009


Service oriented architecture 2 2

Service-oriented architecture 2/2

eLSE’2009


Conclusions

Conclusions

Future improvement:

  • Tuning adaptation mechanism

  • Introducing learner feedback at control points and using it for adaptation control:

    • for adaptive navigation

    • for adaptive content selection

  • Artificial intelligence in adaptation algorithm

  • Monitoring of user interaction

eLSE’2009


Thank you for your attention

Thank you for your attention!

Emails: [email protected], [email protected]

eLSE’2009


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