AccelChalk: Detecting Writing Actions with Chalk Acceleration for Collaboration Between Teachers and Students. - Taishi Okazawa; Hironori Egi (CollabTech, 2017)

DiAna-AD: Dialog Analysis for Adjusting Duration During Face-to-Face Collaborative Discussion. - Naruaki Ishikawa; Taishi Okazawa; Hironori Egi (CRIWG/CollabTech, 2019)