超文本教学系统中学生知识的自适应测评研究

Adaptive assessment of students' knowledge in hypertext tutoring system

知识空间理论提供了一种描述给定知识域结构的方法,它被看作是有效评估学生知识程度的一个基础,但它是一种基于问题的知识空间理论。利用超文本结构和知识空间结构相似的特性,将知识点超文本结构转换为超文本知识空间,使知识空间理论建立在知识点上,并在此超文本知识空间上利用自动机原理实现对学生知识结构的自适应测评过程。给出了基于自动机的自适应测评算法,并进一步分析了算法的有效性和复杂性。

Knowledge space theory offers a method for representing a given knowledge domain which is an efficient formal framework for the students＇ knowledge assessment, But it is based on problems. It knowledge-point hypertext is converted to hypertext knowledge space according to the structural similarity between the hypertext and the knowledge space which realized the knowledge space based on knowledge pointsl An efficient algorithm for the adaptive assessment of the students＇ knowledge in hypertext tutoring system is constructed applying the deterministic finite automation, An adaptive assessment algorithm based on automation is presented including analyzing its validity and complexity.