An indoor human behavior gathering system toward future support for visually impaired people. - Ryotaro Okada; Ikuko Yairi (ASSETS, 2013)

A Method of Knowledge Creation and Knowledge Utilization by Generalized Inverse Operator. - Ryotaro Okada; Takafumi Nakanishi; Takashi Kitagawa (IIAI-AAI, 2014)

Automatic media content creation system according to an impression by recognition-creation operators. - Takafumi Nakanishi; Ryotaro Okada; Takashi Kitagawa (ICIS, 2016)

A Topic Extraction Method on the Flow of Conversation in Meetings. - Takafumi Nakanishi; Ryotaro Okada; Yuichi Tanaka; Yutaka Ogasawara; Kazuhiro Ohashi (IIAI-AAI, 2017)

A Time Series Structure Analysis Method of a Meeting Using Text Data and a Visualization Method of State Transitions. - Ryotaro Okada; Takafumi Nakanishi; Yuichi Tanaka; Yutaka Ogasawara; Kazuhiro Ohashi (New Gener. Comput., 2019)

Kansei Transition Analysis by Time-series Change of Media Content. - Takafumi Nakanishi; Ryotaro Okada; Rintaro Nakahodo (IIAI-AAI, 2020)

A Redefinition Method of Extracting Features for Media Content Utilization and Its Application to Kimono Obi Design. - Ryotaro Okada; Takafumi Nakanishi; Akie Kawagoe; Hirofumi Saito; Hiroshi Saito; Masato Shinohara (IIAI-AAI, 2020)

Weather Map Prediction Using RGB Metaphorical Feature Extraction for Atmospheric Pressure Patterns. - Takeru Hakii; Koshi Shimada; Takafumi Nakanishi; Ryotaro Okada; Keigo Matsuda; Ryo Onishi; Keiko Takahashi (ICIS, 2021)

Automatic Music Mashup Creation Method by Similarity of Features. - Kyosuke Miyamura; Ryotaro Okada; Takafumi Nakanishi (ICIS, 2021)

A Method for Estimating Emotions Using HRV for Vital Data and Its Application to Self-mental care management system. - Koharu Sano; Keiko Ojima; Tagiru Nakamura; Ryotaro Okada; Takafumi Nakanishi (IIAI-AAI-Winter, 2021)

Sign Language Recognition by Similarity Measure with Emotional Expression Specific to Signers. - Takafumi Nakanishi; Ayako Minematsu; Ryotaro Okada; Osamu Hasegawa; Virach Sornlertlamvanich (EJC, 2022)

A Dynamic Finger Character Recognition Method Using Landmark Behavior Rule Base. - Shinpei Hagimoto; Takuma Nitta; Ryotaro Okada; Takafumi Nakanishi (IIAI-AAI-Winter, 2022)

Extraction Method for Important Words as a Viewer's Reaction Arousal Factor from YouTube - Transcription. - Ryuichi Hirano; Ryotaro Okada; Takafumi Nakanishi (IIAI-AAI, 2022)

Emotion Estimation Method by Convolutional Neural Network for Heartbeat Vital Data. - Miyu Iwamoto; Keiko Ojima; Ryotaro Okada; Takafumi Nakanishi (IIAI-AAI-Winter, 2022)

A Method for Predicting Sudden/Cyclic Stress Using Vital Data and the Realization of a Tracking Mental Management Robot. - Koharu Sano; Keiko Ojima; Ryotaro Okada; Takafumi Nakanishi (IIAI-AAI-Winter, 2022)

Time-Series Flexible Resampling for Continuous and Real-Time Finger Character Recognition. - Takuma Nitta; Shinpei Hagimoto; Kyosuke Miyamura; Ryotaro Okada; Takafumi Nakanishi (WI/IAT, 2022)

A New Global Sign Language Recognition System Utilizing the Editable Mediator: Integration with Local Hand Shape Recognition. - Takafumi Nakanishi; Ayako Minematsu; Ryotaro Okada; Osamu Hasegawa; Virach Sornlertlamvanich (EJC, 2023)

A Joint Scene Text Recognition and Visual Appearance Model for Protest Issue Classification. - Xuan Luo; Sota Kato; Asahi Obata; Budrul Ahsan; Ryotaro Okada; Takafumi Nakanishi (ICDAR@ICMR, 2023)

Country by Country Comparison of Thumbnail Features Contributing to Views Using AIME for YouTube. - Rintaro Fukui; Ryotaro Okada; Ayako Minematsu; Takafumi Nakanishi (IIAI-AAI-Winter, 2023)

Off-Rhythm Detection System for Beginner Violinists. - Miyu Momozawa; Ryotaro Okada; Ayako Minematsu; Takafumi Nakanishi (IIAI-AAI-Winter, 2023)

Visualization of Members' Activities in a Series of Group Works by Time-series Feature Comparison Method. - Rikito Ohnishi; Ryotaro Okada; Yuki Murakami; Takafumi Nakanishi; Teru Ozawa; Yutaka Ogasawara; Kazuhiro Ohashi (IIAI-AAI-Winter, 2023)

A Complexity Feature Extraction Method by Chord Progression and Transition Density for Music Media Content. - Ayako Sugiyama; Ryotaro Okada; Ayako Minematsu; Takafumi Nakanishi (IIAI-AAI-Winter, 2023)