Component-Based Explanation in Intelligent Tutoring Systems

摘要

The paper discusses the issue of generating explanations in intelligent tutoring systems. Specifically, it shows how explanations are generated according to the GET-BITS model of intelligent tutoring systems. The major concern is what software components are needed in order to generate meaningful explanations to different classes of the end-users of such systems. The process of explanation is considered in the context of the types of knowledge present in the knowledge base of an intelligent tutoring system. Throughout the paper, the process of explanation generation is treated from the software engineering point of view. Some design examples, describing several classes developed in support of explanation generation based on the GET-BITS model, are also presented.