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

Dessislava Vassileva, Boyan Bontchev

Department of Software Engineering,

Sofia University “St. Kliment Ohridski”, BULGARIA

eLSE’2009


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

  • 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

  • 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

  • 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

eLSE’2009


A triangular conceptual model of AHS 2/2

eLSE’2009


A sample course storyboard graph

eLSE’2009


General process workflow

eLSE’2009


Activity workflow of the adaptation process

eLSE’2009


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

eLSE’2009


Service-oriented architecture 2/2

eLSE’2009


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!

Emails: [email protected], [email protected]

eLSE’2009


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