A Knowledge-Based Instructional Assistant to Accompany LEO: A Learning Environment Organizer

John W. Coffey

This paper describes preliminary work on enhancements to a computer-mediated instructional program entitled LEO: a Learning Environment Organizer. LEO is a non-linear course presentation program that is based upon the notion of an advance organizer. The Knowledge-based Instructional Assistant described here combines knowledge of the learner’s attainment in the course with knowledge of various attributes of the instructional media in order to make recommendations of media that might benefit the learner. Matches between attainment profiles and media are based upon weighted nearest neighbor measures of similarity.


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