Prosody-based detection of the context of backchannel responses. - Hiroaki Noguchi; Yasuharu Den (ICSLP, 1998)

Automatic labeling of Japanese prosody using j-toBI style description. - Hiroaki Noguchi; Kazuhisa Kiriyama; Hiroshi Matsuda; Miki Taniguchi; Yasuharu Den; Yasuhiro Katagiri (EUROSPEECH, 1999)

An experimental verification of the prosodic/lexical effects on the occurrence of backchannels. - Hiroaki Noguchi; Yasuhiro Katagiri; Yasuharu Den (INTERSPEECH, 2000)

Japanese conversation corpus for training and evaluation of backchannel prediction model. - Hiroaki Noguchi; Yasuhiro Katagiri; Yasuharu Den (LREC, 2014)