Case-Based Adviser for Near-Miss Programs

This paper describes a method of giving advice for near-miss programs using a case-based reasoning approach in programming education. A near-miss program is a program that does not run properly but is rather close to correct programs. Two case-based methods of generating advice sentences are proposed; one is based on similarity to past advice cases and the other is based on the difference from correct programs. In addition to these, a model of giving step-by-step advice is proposed. Based on these ideas, a case-based advice system for a simple assembly language is implemented. The system had been utilized in actual classes and the results suggested that the case-based advice system was useful.