Title :
A Formal Model of Knowledge Base Systems in Intelligent Tutoring Systems
Author :
Li Zhiping ; Sun Yu
Author_Institution :
Center of Modern Educ. Technol., Yunnan Normal Univ., Kunming, China
Abstract :
A formal model of a knowledge base system consisting of a domain knowledge base and a user knowledge base in intelligent tutoring systems is presented in this paper. The domain knowledge base is represented by 3-level structure: subject level, knowledge concept level and learning material level; and ontologies are introduced in order to improve the sharing and reusing of multimedia teaching materials. The user knowledge base is constructed by making use of learners´ knowledge levels, psychological characteristics and learning styles, etc., to improve the self-adaptability and pedagogical effects of the system. After given the formalisms of the above two kinds of knowledge bases, the formal model of our knowledge base system is presented, and the teaching process based on the system is discussed in detail to show that the model is practicable.
Keywords :
intelligent tutoring systems; knowledge based systems; ontologies (artificial intelligence); domain knowledge base; intelligent tutoring systems; knowledge base systems formal model; knowledge concept level; learners knowledge levels; learning material level; learning styles; multimedia teaching materials; ontologies; pedagogical effects; psychological characteristics; subject level; user knowledge base; Artificial intelligence; Building materials; Computer science; Education; Educational technology; Information technology; Intelligent systems; Ontologies; Psychology; Sun;
Conference_Titel :
Computational Intelligence and Software Engineering, 2009. CiSE 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4507-3
Electronic_ISBN :
978-1-4244-4507-3
DOI :
10.1109/CISE.2009.5366431
