Student Modelling Based on Belief Networks

  • Authors:
  • Jim Reye

  • Affiliations:
  • School of Information System, Queensland University of Technology, Brisbane, Australia. j.reye@qut.edu.au

  • Venue:
  • International Journal of Artificial Intelligence in Education
  • Year:
  • 2004

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Abstract

Belief networks provide an important way to represent and reason about uncertainty - significant factors for modelling students. These networks provide a way of structuring such models, and allow a system to use a systematic approach when gathering information about the scope of the student's knowledge. This work also provides a theoretically-sound way to update the student model, based on the concept of a dynamic belief network. The relationship to related research is discussed. Finally, the paper describes why the barren node concept is important for computational efficiency in belief-net-based student models.