Time-based Self-learning Support Using Collaborative Learning Process. - Masahide Kakehi; Tomoko Kojiri; Toyohide Watanabe (ICCE, 2006)

Annotation Interpretation of Collaborative Learning History for Self-learning. - Masahide Kakehi; Tomoko Kojiri; Toyohide Watanabe (KES (2), 2006)

Organization of Discussion Knowledge Graph from Collaborative Learning Record. - Masahide Kakehi; Tomoko Kojiri; Toyohide Watanabe; Takeshi Yamada; Tomoharu Iwata (KES (3), 2007)