NTUs: An Intelligent Tutorial System Fosters Number Concepts through Computational Scaffolding. - Chih-Wei Hue; Chien-Huei Kao; Ming Lo; Chien-Chih Chiang; LiongYu Tu; Wen-Lian Hsu (ICCE, 2002)

A Cognitive Student Model - An Ontological Approach. - LiongYu Tu; Wen-Lian Hsu; Shih-Hung Wu (ICCE, 2002)

The Design of An Intelligent Tutoring System Based on the Ontology of Procedural Knowledge. - Chun-Hung Lu; Shih-Hung Wu; LiongYu Tu; Wen-Lian Hsu (ICALT, 2004)