K. de Koning and B. Bredeweg. 1998
Using GDE in Educational Systems.
Proceedings of the Twelfth International workshop on Qualitative Reasoning,
pages 42-49.
(PDF)
Abstract
In intelligent educational systems, assessment of what the learner is
doing is a prerequisite for proper, knowledgeable guidance of the
educational process. We propose to use existing techniques from the
field of model-based reasoning for this purpose. This paper describes
how a modified version of GDE can be exploited in diagnosing a learner's
problem solving behaviour. The problem solving task for the learner is
structured prediction of behaviour. We present models of this problem
solving knowledge that adhere to the representational requirements of
model-based reasoning, and show how GDE-like diagnostic techniques can
be employed to determine those reasoning steps that the learner cannot
have applied correctly given the observations. Our approach of
diagnosing the learner's problem solving behaviour, rather than his or
her misconceptions, induces an educational strategy that focusses on
learning from errors and stimulates the learner's 'self-repair'
capabilities.