Research On WEB-Based Intelligent Tutoring System

Intelligent Tutoring System is a complex system involved with computer science, pedagogy, psychology, cognitive science, and behavior science. It aims to provide the computer system with wit, so the computer system can take the place of human teacher to instruct the student in some degree.According to the analysis of ITS's history and the developing tendency of information technology on education, this paper presents a Web-based ITS, Which has improved the existing systems on learning theory, instruction design, the organization and intelligent present of knowledge, auto-generating paper, student model, computer tutor.Based on the analysis of the learning theory and instructionual design, we understand the procedure and regulation of learning, recognizing how to improve the learning environments and instructional procedure, so our ITS could implement on a betterpedagogy theory; presented in XML, the subject knowledge could be more suitable to be manipulated by computer tutor, to develop an individual learning environments. Auto-generating paper is a constrained multi-object optimization problem, this paper presents a way based on genetic algorithm (GA) to solve the problem, and discuss how to choose an individual coding to improve the efficiency of GA according the problem; when establishing the student model, we consider the mental factor as well as the cognitive factor. According to the analysis of the data in student model, the computer tutor could comprehend the metal factor influencing the learning more clearly. If this compreheadtion is quantitative, it will promote pedagogy, psychology, and cognitive science greatly. At last, the paper introduces the function and structure of the system, and discusses the key implement technology.