| 2009 | ICASSP | Temporal contrast normalization and edge-preserved smoothing on temporal modulation structure for robust speech recognition. | Xugang Lu, Shigeki Matsuda, Masashi Unoki, Tohru Shimizu, Satoshi Nakamura |
| 2009 | ICASSP | CART-based modeling of Chinese tonal patterns with a functional model tracing the fundamental frequency trajectories. | Jinfu Ni, Shinsuke Sakai, Tohru Shimizu, Satoshi Nakamura |
| 2009 | ICASSP | Optimal learning of P-Layer additive F0 models with cross-validation. | Shinsuke Sakai, Tatsuya Kawahara, Tohru Shimizu, Satoshi Nakamura |
| 2008 | COLING | Multilingual Mobile-Phone Translation Services for World Travelers. | Michael Paul, Hideo Okuma, Hirofumi Yamamoto, Eiichiro Sumita, Shigeki Matsuda, Tohru Shimizu, Satoshi Nakamura |
| 2007 | ACL | NICT-ATR Speech-to-Speech Translation System. | Eiichiro Sumita, Tohru Shimizu, Satoshi Nakamura |
| 2007 | Interspeech | A method for evaluating task-oriented spoken dialog translation systems based on communication efficiency. | Toshiyuki Takezawa, Masahide Mizushima, Tohru Shimizu, Gen-ichiro Kikui |
| 2006 | Interspeech | Performance improvement of dialog speech translation by rejecting unreliable utterances. | Toshiyuki Takezawa, Tohru Shimizu |
| 2006 | MDM | Developing Client-Server Speech Translation Platform. | Tohru Shimizu, Yutaka Ashikari, Toshiyuki Takezawa, Masahide Mizushima, Gen-ichiro Kikui, Yutaka Sasaki, Satoshi Nakamura |
| 2003 | ICASSP | Improved speaker, verification over the cellular phone network using phoneme-balanced and digit-sequence-preserving connected digit patterns. | Tsuneo Kato, Tohru Shimizu |
| 2003 | Interspeech | An efficient keyword spotting technique using a complementary language for filler models training. | Panikos Heracleous, Tohru Shimizu |
| 2002 | ICASSP | Noise-robust cellular phone speech recognition using codec-adapted speech and noise models. | Tsuneo Kato, Masaki Naito, Tohru Shimizu |
| 2001 | ICASSP | Efficient mixture Gaussian synthesis for decision tree based state tying. | Tsuneo Kato, Shingo Kuroiwa, Tohru Shimizu, Norio Higuchi |
| 2001 | Interspeech | Rapid CODEC adaptation for cellular phone speech recognition. | Masaki Naito, Shingo Kuroiwa, Tsuneo Kato, Tohru Shimizu, Norio Higuchi |
| 2000 | Interspeech | A design method of speech corpus for text-to-speech synthesis taking account of prosody. | Hisashi Kawai, Seiichi Yamamoto, Norio Higuchi, Tohru Shimizu |
| 1997 | ICASSP | Fast word-graph generation for spontaneous conversational speech translation. | Tohru Shimizu, Harald Singer, Yoshinori Sagisaka |
| 1996 | ICASSP | Spontaneous dialogue speech recognition using cross-word context constrained word graphs. | Tohru Shimizu, Hirofumi Yamamoto, Hirokazu Masataki, Shoichi Matsunaga, Yoshinori Sagisaka |
| 1996 | Interspeech | Japanese speech databases for robust speech recognition. | Atsushi Nakamura, Shoichi Matsunaga, Tohru Shimizu, Masahiro Tonomura, Yoshinori Sagisaka |
| 1995 | ICASSP | Time-synchronous continuous speech recognizer driven by a context-free grammar. | Tohru Shimizu, Seikou Monzen, Harald Singer, Shoichi Matsunaga |
| 1995 | Interspeech | Speaking-style and speaker adaptation for the recognition of spontaneous dialogue speech. | Shoichi Matsunaga, Tetsuo Kosaka, Tohru Shimizu |
| 1994 | ICASSP | Development of a text-to-speech system for Japanese based on waveform splicing. | Hisashi Kawai, Norio Higuchi, Tohru Shimizu, Seiichi Yamamoto |
| 1990 | Interspeech | Improvement of the synthetic speech quality of the formant-type speech synthesizer and its subjective evaluation. | Norio Higuchi, Hisashi Kawai, Tohru Shimizu, Seiichi Yamamoto |
| 1990 | Interspeech | The linguistic processing module for Japanese text-to-speech system. | Tohru Shimizu, Norio Higuchi, Hisashi Kawai, Seiichi Yamamoto |
| 1985 | ICSE | Automatic Tuning of Multi-Task Programs for Real-Time Embedded Systems. | Tohru Shimizu, Ken Sakamura |