Improving User Impression in Spoken Dialog System with Gradual Speech Form Control Yukiko Kageyama author Yuya Chiba author Takashi Nose author Akinori Ito author 2018-07 text Proceedings of the 19th Annual SIGdial Meeting on Discourse and Dialogue Kazunori Komatani editor Diane Litman editor Kai Yu editor Alex Papangelis editor Lawrence Cavedon editor Mikio Nakano editor Association for Computational Linguistics Melbourne, Australia conference publication kageyama-etal-2018-improving 10.18653/v1/W18-5026 https://aclanthology.org/W18-5026/ 2018-07 235 240