Environmental CAL for Conversation Pattern Learning. - Ryo Okamoto; Yoneo Yano (ICCAL, 1992)

A construction of an intelligent environmental language learning system with interactive 3D quasi environment. - Ryo Okamoto; Masafumi Sawamatsu (SMC, 1998)

Presentation Review Supporting Environment with Realtime-Created Hypervideo Technique. - Ryo Okamoto; Akihiro Kashihara (ICCE, 2007)

Facilitating Presentation Rehearsal Review with Realtime-Created Hypervideo Technique. - Ryo Okamoto; Akihiro Kashihara (ICALT, 2008)

Learning Objectives in Web-Based Continuous Inquiry Learning Using Social Bookmark. - Yasuo Miyoshi; Ryo Tadokoro; Masahiro Yoshizawa; Ryo Okamoto; Kazuhide Kanenishi (ICCE, 2011)

Knowledge Publishing Method for Knowledge Refinement in Self-Directed Learning. - Ryo Okamoto; Yukinori Naruta (ICCE, 2011)

Back-Review Support Method for Presentation Rehearsal Support System. - Ryo Okamoto; Akihiro Kashihara (KES (2), 2011)

Realization of a Knill-Laflamme-Milburn controlled-NOT photonic quantum circuit combining effective optical nonlinearities. - Ryo Okamoto; Jeremy Lloyd O'Brien; Holger F. Hofmann; Shigeki Takeuchi (Proc. Natl. Acad. Sci. USA, 2011)

Design of Learning Hyperspace Construction System for Knowledge Refinement in Self-Directed Learning. - Yukinori Naruta; Ryo Okamoto (ICCE, 2012)

Back-review support system for presentation rehearsal review. - Ryo Okamoto; Akihiro Kashihara (Int. J. Knowl. Web Intell., 2012)

Encouraging Each Other in the Community Site for Habit Development. - Yasuo Miyoshi; Ryo Okamoto (ICCE, 2013)

Review Support System with Visual-Oriented Annotation Method for Presentation Rehearsal. - Ryo Okamoto; Yuto Watanabe; Akihiro Kashihara (ICCE, 2013)

Evaluation of Difficulty Estimation for Learning Materials Recommendation. - Yasuo Miyoshi; Kazuhiro Suzuki; Ken-ichi Shiota; Ryo Okamoto (ICCE, 2014)

Presentation Reconstruction Method for Peer Review Support in Presentation Rehearsal. - Akihiro Tanikawa; Ryo Okamoto; Akihiro Kashihara (ICCE, 2014)

A study of performance detection method for a guitar skill learning using kinect sensor. - Yoshitaka Kashiwagi; Youji Ochi; Yasuo Miyoshi; Yuichiro Mori; Ryo Okamoto (GCCE, 2015)

Consistent and Efficient Nonparametric Different-Feature Selection. - Satoshi Hara 001; Takayuki Katsuki; Hiroki Yanagisawa; Takafumi Ono; Ryo Okamoto; Shigeki Takeuchi (AISTATS, 2017)

Lecturer's Silhouette Display System for Distance Education Using Screen Sharing between Interactive Whiteboards. - Satoru Komatsu; Yasuo Miyoshi; Yuichiro Mori; Ryo Okamoto (ICCE, 2018)

Proposal of Balloon Type Drone for Overhead Shooting in Remote Joint Classroom. - Ryo Okamoto; Yasuo Miyoshi; Yuichiro Mori (ICCE, 2018)

Vibration Auralization System Using High-Speed Vision. - Kotaro Fujita; Feiyue Wang 007; Kohei Shimasaki; Idaku Ishii; Ryo Okamoto; Hironori Higashida (ISIE, 2023)