Organization of Discussion Knowledge Graph from Collaborative Learning Record - Masahide Kakehi; Tomoko Kojiri; Toyohide Watanabe; Takeshi Yamada; Tomoharu Iwata (Knowledge-Based Intelligent Information and Engineering Systems, 11th International Conference, KES 2007, XVII Italian Workshop on Neural Networks, Vietri sul Mare, Italy, September 12-14, 2007, Proceedings, Part III, 2007)

Time-based Self-learning Support Using Collaborative Learning Process - Masahide Kakehi; Tomoko Kojiri; Toyohide Watanabe (Learning by Effective Utilization of Technologies: Facilitating Intercultural Understanding, Proceeding of the 14th International Conference on Computers in Education, ICCE 2006, November 30 - December 4, 2006, Beijing, China, 2006)

Annotation Interpretation of Collaborative Learning History for Self-learning - Masahide Kakehi; Tomoko Kojiri; Toyohide Watanabe (Knowledge-Based Intelligent Information and Engineering Systems, 10th International Conference, KES 2006, Bournemouth, UK, October 9-11, 2006, Proceedings, Part II, 2006)