| 2014 | ICASSP | Estimators for unnormalized statistical models based on self density ratio. | Kazuyuki Hiraoka, Toshihiko Hamada, Gen Hori |
| 2007 | ICONIP | Parallel Reinforcement Learning for Weighted Multi-criteria Model with Adaptive Margin. | Kazuyuki Hiraoka, Manabu Yoshida, Taketoshi Mishima |
| 2002 | SMC | Implementation of invisible messenger system to whisper in a person's ear remotely by integrating visual face tracking and speaker array. | Hiroshi Mizoguchi, Tomohiko Kanamori, Satoshi Kagami, Kazuyuki Hiraoka, Masaru Tanaka, Takaomi Shigehara, Taketoshi Mishima |
| 2000 | ICPR | Successive Learning of Linear Discriminant Analysis: Sanger-Type Algorithm. | Kazuyuki Hiraoka, Ken-ichi Hidai, Masashi Hamahira, Hiroshi Mizoguchi, Tanaka Mishima, Shuji Yoshizawa |
| 2000 | IJCNN | Convergence Analysis of Online Linear Discriminant Analysis. | Kazuyuki Hiraoka, Shuji Yoshizawa, Ken-ichi Hidai, Masashi Hamahira, Hiroshi Mizoguchi, Taketoshi Mishima |
| 2000 | IROS | Robust face detection against brightness fluctuation and size variation. | Ken-ichi Hidai, Hiroshi Mizoguchi, Kazuyuki Hiraoka, Masaru Tanaka, Takaomi Shigehara, Taketoshi Mishima |
| 1998 | ICONIP | Recalling of Many-Valued Functions by Successive Iteration on Bottleneck Networks. | Kazuyuki Hiraoka, Shuji Yoshizawa |
| 1998 | ICONIP | Adaptive Blind Equalization Using Bottleneck Networks Implemented by Evolvable Hardware. | Masahiro Murakawa, Kazuyuki Hiraoka, Tetsuya Higuchi, Tatsumi Furuya, Shuji Yoshizawa |