Toward Construction of Spoken Dialogue System that Evokes Users’ Spontaneous Backchannels Teruhisa Misu author Etsuo Mizukami author Yoshinori Shiga author Shinichi Kawamoto author Hisashi Kawai author Satoshi Nakamura author 2011-06 text Proceedings of the SIGDIAL 2011 Conference Joyce Y Chai editor Johanna D Moore editor Rebecca J Passonneau editor David R Traum editor Association for Computational Linguistics Portland, Oregon conference publication misu-etal-2011-toward https://aclanthology.org/W11-2028/ 2011-06 259 265