Knowledge Assessment Based on Many-Valued Logic

Authors:
Sylvia Encheva;Sharil Tumin
Affiliations:
Stord/Haugesund University College, Bjørnsonsg. 45, 5528 Haugesund,Email:mzs@hsh.no, Norway;University of Bergen, IT-Dept., P.O. Box 7800, 5020 Bergen, Norway
Venue:
KES '07 Knowledge-Based Intelligent Information and Engineering Systems and the XVII Italian Workshop on Neural Networks on Proceedings of the 11th International Conference
Year:
2007

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Abstract

This paper describes application of six-valued logic in an assessment sub-system of an intelligent tutoring system. This allows the system to handle situations with inconsistent and incomplete input. Special attention is paid to the decision making rules an intelligent agent is applying for assessing students' understanding of new terms. If an assessment is not in anyway connected with grading, i.e. a student will neither loose no gain by providing honest answers, we assume that there is no need for penalty rules deterring system misuse. Instead we implement rules that distinguish between students' hesitation in the process of giving an answer and lack of knowledge.