基于认知理论和随机开放性测试的动态学生建模研究

论文从认知理论出发,提出了一种实用的学生建模方法,即以信息模型和学习模型的组合形式进行学生建模,并采用认知模型、覆盖模型和测试模型对学习模型进行描述。该学生模型可以很好地实现学生模型的动态修改以及教学策略的自适应调整。文中对基于随机算法的开放性测试进行了研究,给出了它的实现算法,并进一步讨论了基于此算法的学生模型修改策略。最后,讨论了基于认知理论与随机开放性测试的动态学生模型在ICAI中的实践,建立了一个ICAI集成教学系统。

The Research of Dynamic Student Modeling Based on Cognitive Theory and Random Open Test

Based on cognitive theory,this paper propounds a practical method of student modeling,which is to combine an information model and a learning model to achieve student modeling,and the learning model is depicted by a cognitive model,a covering model and a test model.Such a student model can achieve the dynamically modifying of student model and the self-adjustment of tutorial strategies.The open test based on a random algorithm is studied in the paper. The implementing algorithm of the test is given,and the strategy of the modification of student model according to the algorithm is then discussed.At the end of the article,an implementation of such a dynamic student model in ICAI is studied.An integrated teaching system of ICAI courseware is developed.