Student Behavioral Model Based Prefetching in Online Tutoring System

Web-based tutoring systems provide important advantages as a supplement to traditional classroom instruction. MANIC (Multimedia Asynchronous Networked Individualized Courseware) is an interactive multimedia WWWbased tutoring system that was originally developed in 1997 and was used by more than 200 users during the Spring 1997 semester to listen to, and view, the stored audio lectures and lecture notes for a full-semester seniorlevel Networking course at the University of Massachusetts [9]. Previous work has been done to analyze and improve the performance of MANIC from both system’s and users’ perspective [9] providing empirical and analytical characterizations of observed user behavior in MANIC. The work in [9] focused on studying the sessionlevel behavior (e.g, the length of individual sessions) and interactive user behavior (e.g., the time between starting/stopping/pausing the audio within a session). [14] built and analyze a student model for MANIC, and determining the level of difficulty and the learning style preferences of a student by using a Naive Bayes Classifier.