A lOObit/s speech coding using a speech recognition technique. - Yoshimitsu Hirata; Seiichi Nakagawa (EUROSPEECH, 1989)

Comparison among time-delay neural networks, LVQ2 discrete parameter HMM and continuous parameter HMM. - Seiichi Nakagawa; Yoshimitsu Hirata (ICASSP, 1990)

Speaker adaptation of continuous parameter HMM. - Yoshimitsu Hirata; Seiichi Nakagawa (ICSLP, 1990)

The syntax-oriented spoken Japanese understanding system SPOJOS-SYNO II. - Seiichi Nakagawa; Yoshimitsu Hirata; Isao Murase (EUROSPEECH, 1991)