| 2019 | HCI | Identity Verification Using Face Recognition for Artificial-Intelligence Electronic Forms with Speech Interaction. | Akitoshi Okumura, Shuji Komeiji, Motohiko Sakaguchi, Masahiro Tabuchi, Hiroaki Hattori |
| 2006 | PACLIC | Efficient language model development for spoken dialogue recognition and its evaluation on operator's speech at call centers. | Kiyokazu Miki, Kaichiro Hatazaki, Hiroaki Hattori |
| 2002 | ICMI | An Automatic Speech Translation System on PDAs for Travel Conversation. | Ryosuke Isotani, Kiyoshi Yamabana, Shinichi Ando, Ken Hanazawa, Shin-ya Ishikawa, Tadashi Emori, Ken-ichi Iso, Hiroaki Hattori, Akitoshi Okumura, Takao Watanabe |
| 1996 | Interspeech | Speech recognition using sub-word units dependent on phonetic contexts of both training and recognition vocabularies. | Hiroaki Hattori, Eiko Yamada |
| 1996 | Interspeech | Unsupervised and incremental speaker adaptation under adverse environmental conditions. | Keizaburo Takagi, Koichi Shinoda, Hiroaki Hattori, Takao Watanabe |
| 1995 | ICASSP | Rapid environment adaptation for robust speech recognition. | Keizaburo Takagi, Hiroaki Hattori, Takao Watanabe |
| 1994 | Interspeech | A normalization method of prediction error for neural networks. | Hiroaki Hattori |
| 1994 | Interspeech | Speech recognition with rapid environment adaptation by spectrum equalization. | Keizaburo Takagi, Hiroaki Hattori, Takao Watanabe |
| 1992 | ICASSP | Text-independent speaker recognition using neural networks. | Hiroaki Hattori |
| 1992 | Interspeech | Vector field smoothing principle for speaker adaptation. | Hiroaki Hattori, Shigeki Sagayama |
| 1991 | ICASSP | Speaker adaptation based on Markov modeling of speakers in speaker-independent speech recognition. | Hiroaki Hattori |
| 1990 | ICASSP | Supplementation of HMM for articulatory variation in speaker adaptation. | Hiroaki Hattori, Satoshi Nakamura, Kiyohiro Shikano |
| 1990 | Interspeech | Speaker weighted training of HMM using multiple reference speakers. | Hiroaki Hattori, Satoshi Nakamura, Kiyohiro Shikano, Shigeki Sagayama |