Phoneme recognition in continuous speech based on mutual information considering phonemic duration and connectivity. - Katsuhiko Shirai; Shigeki Okawa; Tetsunori Kobayashi (ICSLP, 1992)

Word spotting in conversational speech based on phonemic unit likelihood by mutual information criterion. - Shigeki Okawa; Tetsunori Kobayashi; Katsuhiko Shirai (EUROSPEECH, 1993)

Automatic training of phoneme dictionary based on mutual information criterion. - Shigeki Okawa; Tetsunori Kobayashi; Katsuhiko Shirai (ICASSP (1), 1994)

Phoneme recognition in various styles of utterance based on mutual information criterion. - Shigeki Okawa; Tetsunori Kobayashi; Katsuhiko Shirai (ICSLP, 1994)

Evaluation of phonetic feature recognition with a time-delay neural network. - Shigeki Okawa; Christoph Windheuser; Frédéric Bimbot; Katsuhiko Shirai (ICSLP, 1994)

Estimation of statistical phoneme center and its application to accurate phoneme modelling. - Shigeki Okawa; Katsuhiko Shirai (EUROSPEECH, 1995)

Estimation of statistical phoneme center considering phonemic environments. - Shigeki Okawa; Katsuhiko Shirai (ICSLP, 1996)

Multi-band speech recognition in noisy environments. - Shigeki Okawa; Enrico Bocchieri; Alexandros Potamianos (ICASSP, 1998)

A recombination strategy for multi-band speech recognition based on mutual information criterion. - Shigeki Okawa; Takehiro Nakajima; Katsuhiko Shirai (EUROSPEECH, 1999)

Statistical estimation of phoneme's most stable point based on universal constraint. - Shigeki Okawa; Katsuhiko Shirai (INTERSPEECH, 2003)

Discrimination of speech, musical instruments and singing voices using the temporal patterns of sinusoidal segments in audio signals. - Toru Taniguchi; Akishige Adachi; Shigeki Okawa; Masaaki Honda; Katsuhiko Shirai (INTERSPEECH, 2005)

A study on temporal features derived by analytic signal. - Yotaro Kubo; Shigeki Okawa; Akira Kurematsu; Katsuhiko Shirai (INTERSPEECH, 2007)

Noisy speech recognition using temporal AM-FM combination. - Yotaro Kubo; Akira Kurematsu; Katsuhiko Shirai; Shigeki Okawa (ICASSP, 2008)

A comparative study on AM and FM features. - Yotaro Kubo; Shigeki Okawa; Akira Kurematsu; Katsuhiko Shirai (INTERSPEECH, 2008)

Recognizing Reverberant Speech Based on Amplitude and Frequency Modulation. - Yotaro Kubo; Shigeki Okawa; Akira Kurematsu; Katsuhiko Shirai (IEICE Trans. Inf. Syst., 2008)

A Home Healthcare System with Communication Robot Technologies - Development of Experimental Systems and in-Home Verification Experiments by Older Persons. - Kengo Toda; Mutsuhisa Fujioka; Atsuhiro Fujii; Shigeki Okawa; Junri Shinohara; Shinji Tanaka; Takayuki Nakamura; Takayuki Furuta (J. Robotics Mechatronics, 2011)

Temporal AM-FM combination for robust speech recognition. - Yotaro Kubo; Shigeki Okawa; Akira Kurematsu; Katsuhiko Shirai (Speech Commun., 2011)

Method for Collection of Acted Speech Using Various Situation Scripts. - Takahiro Miyajima; Hideaki Kikuchi; Katsuhiko Shirai; Shigeki Okawa (LREC, 2012)