Architectures and Hardware Systems: Parallel Inference Machine and Knowledge Base Machine. - Kunio Murakami; Takeo Kakuta; Rikio Onai (FGCS, 1984)

OR-Parallel Optimizing Prolog System: POPS. Its Design and Implementation in Concurrent Prolog. - Hideki Hirakawa; Rikio Onai; Koichi Furukawa (RIMS Symposia on Software Science and Engineering, 1984)

Architecture and Evaluation of a Reduction-Based Parallel Inference Machine: PIM-R. - Rikio Onai; Hajime Shimizu; Kanae Masuda; Akira Matsumoto; Moritoshi Aso (LP, 1985)

Hardware Simulator of Reduction-Based Parallel Inference Machine PIM-R. - Mamoru Sugie; M. Yoneyama; T. Sakabe; M. Iwasaki; S. Yoshizumi; Moritoshi Aso; Hajime Shimizu; Rikio Onai (LP, 1985)

Research on Parallel Machine Architecture for Fifth-Generation Computer Systems. - Kunio Murakami; Takeo Kakuta; Rikio Onai; Noriyoshi Ito (Computer, 1985)

Architecture of a Reduction-Based Parallel Inference Machine: PIM-R. - Rikio Onai; Moritoshi Aso; Hajime Shimizu; Kanae Masuda; Akira Matsumoto (New Gener. Comput., 1985)

Analysis of Sequential Prolog Programs. - Rikio Onai; Hajime Shimizu; Kanae Masuda; Moritoshi Aso (J. Log. Program., 1986)

Proposal and Evaluation of Dynamic Object-Oriented Programming. - Rikio Onai; Yukio Tsuruoka (Syst. Comput. Jpn., 1990)

Video/Text Linkage System Assisted by a Concept Dictionary and Image Recognition. - Mitsukazu Washisaka; Toshihiro Takada; Shigemi Aoyagi; Rikio Onai (ICMCS, 1996)

Adaptive Selection of Reactive/Deliberate Planning for the Dynamic Environment. - Satoshi Kurihara; Shigemi Aoyagi; Rikio Onai (MAAMAW, 1997)

VISPATCH: Graphical Rule-Based Language Controlled by User Event. - Yasunori Harada; Kenji Miyamoto; Rikio Onai (VL, 1997)

Multi-Agent Reinforcement Learning System Integrating Exploitation and Exploration-Oriented Learning. - Satoshi Kurihara; Rikio Onai; Toshiharu Sugawara (DAI, 1998)

Self-organization based on nonlinear nonequilibrium. Dynamics of autonomous agents. - Satoshi Kurihara; Toshiharu Sugawara; Rikio Onai (Artif. Life Robotics, 1998)

Adaptive selection of reactive/deliberate planning for a dynamic environment. - Satoshi Kurihara; Shigemi Aoyagi; Rikio Onai; Toshiharu Sugawara (Robotics Auton. Syst., 1998)

Adaptive Reinforcement Learning Integrating Exploitation-and Exploration-oriented Learning. - Satoshi Kurihara; Rikio Onai; Toshiharu Sugawara (J. Adv. Comput. Intell. Intell. Informatics, 1999)

Video Skimming Method for Flexible Play Time. - Shigemi Aoyagi; Toshihiro Takada; Koji Sato; Toshiharu Sugawara; Rikio Onai (IMSA, 2002)

Retrieval of Product Reputations from the WWW - Takahiro Hayashi; Yosuke Kinosita; Rikio Onai (KES, 2004)

Figure-ground separation for vector graphics with contour detection. - Takahiro Hayashi; Kazuho Shibata; Rikio Onai; Koji Abe (IMSA, 2006)

Vector Image Segmentation for Content-Based Vector Image Retrieval. - Takahiro Hayashi; Rikio Onai; Koji Abe (CIT, 2007)

Landscape Image Retrieval with Query by Sketch and Icon. - Takahiro Hayashi; Atsushi Ishikawa; Rikio Onai (J. Adv. Comput. Intell. Intell. Informatics, 2007)

Retrieval of Personal Web Documents by Extracting Subjective Expressions. - Takahiro Hayashi; Koji Abe; Rikio Onai (AINA Workshops, 2008)

Retrieval of 2D vector images by matching Weighted Feature Points. - Takahiro Hayashi; Taisuya Kiyono; Koji Abe; Rikio Onai (ICIP, 2008)

A New Minimally Supervised Learning Method for Semantic Term Classification - Experimental Results on Classifying Ratable Aspects Discussed in Customer Reviews. - Thao Pham Thanh Nguyen; Takahiro Hayashi; Rikio Onai; Yuhei Nishioka; Takamasa Takenaka; Masaya Mori (ICDM Workshops, 2009)

Discrimination of personal web pages by extracting subjective expressions. - Takahiro Hayashi; Koji Abe; Debabrata Roy; Rikio Onai (Int. J. Bus. Intell. Data Min., 2009)

Jasmine: a real-time local-event detection system based on geolocation information propagated to microblogs. - Kazufumi Watanabe; Masanao Ochi; Makoto Okabe; Rikio Onai (CIKM, 2011)

Choreographing amateur performers using video examples. - Kenta Mizui; Makoto Okabe; Rikio Onai (SIGGRAPH Asia Posters, 2011)

Rating prediction using feature words extracted from customer reviews. - Masanao Ochi; Makoto Okabe; Rikio Onai (SIGIR, 2011)

Creating Fluid Animation from a Single Image using Video Database. - Makoto Okabe; Ken Anjyo; Rikio Onai (Comput. Graph. Forum, 2011)

Extracting fluid from a video for efficient post-production. - Makoto Okabe; Ken Anjyo; Rikio Onai (DigiPro, 2012)

Video retrieval based on user-specified deformation. - Yuta Kawate; Makoto Okabe; Rikio Onai; Hiromi Hirano; Masahiro Sanjo (SIGGRAPH Posters, 2012)

Synthesis of a video of performers appearing to play user-specified band music. - Tomohiro Yamamoto; Makoto Okabe; Rikio Onai (SIGGRAPH Posters, 2012)

KikuNavi: Real-time pedestrian navigation based on social networking service and collective intelligence. - Hikaru Nagasaka; Makoto Okabe; Rikio Onai (VL/HCC, 2012)

Rating Prediction by Correcting User Rating Bias. - Masanao Ochi; Yutaka Matsuo; Makoto Okabe; Rikio Onai (Web Intelligence, 2012)

Choreographing Amateur Performers Based on Motion Transfer between Videos. - Kenta Mizui; Makoto Okabe; Rikio Onai (MMM (1), 2013)

Video Retrieval Based on User-Specified Appearance and Application to Animation Synthesis. - Makoto Okabe; Yuta Kawate; Ken Anjyo; Rikio Onai (MMM (2), 2013)

DDMixer2.5D: drag and drop to mix 2.5D video objects. - Tatsuya Kurihara; Makoto Okabe; Rikio Onai (UIST (Adjunct Volume), 2013)

Semi-Automatic Synthesis of Videos of Performers Appearing to Play User-Specified Music. - Tomohiro Yamamoto; Makoto Okabe; Yusuke Hijikata; Rikio Onai (WSCG, 2013)

A system to support the amateurs to take a delicious-looking picture of foods. - Takao Kakimori; Makoto Okabe; Keiji Yanai; Rikio Onai (SIGGRAPH Asia Mobile Graphics and Interactive Applications, 2015)

Fluid volume modeling from sparse multi-view images by appearance transfer. - Makoto Okabe; Yoshinori Dobashi; Ken Anjyo; Rikio Onai (ACM Trans. Graph., 2015)

A System to Help Amateurs Take Pictures of Delicious Looking Food. - Takao Kakimori; Makoto Okabe; Keiji Yanai; Rikio Onai (BigMM, 2016)

Human Action Recognition Based on Integrating Body Pose, Part Shape, and Motion. - Hany A. El-Ghaish; Mohamed E. Hussein 001; Amin A. Shoukry; Rikio Onai (IEEE Access, 2018)