Approximate modelling of the multi-dimensional learner

Morales, Rafael; Van Labeke, Nicolas and Brna, Paul (2006). Approximate modelling of the multi-dimensional learner. In: ITS'06 - 8th International Conference on Intelligent Tutoring Systems, 26-30 Jun 2006, Jhongli, Taiwan, Springer-Verlag, pp. 555–564.



This paper describes the design of the learner modelling component of the LeActiveMath system, which was conceived to integrate modelling of learners' competencies in a subject domain, motivational and affective dispositions and meta-cognition. This goal has been achieved by organising learner models as stacks, with the subject domain as ground layer and competency, motivation, affect and meta-cognition as upper layers. A concept map per layer defines each layer's elements and internal structure, and beliefs are associated to the applications of elements in upper-layers to elements in lower-layers. Beliefs are represented using belief functions and organised in a network constructed as the composition of all layers' concept maps, which is used for propagation of evidence.

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