%0 Journal Article %T Improving User Impression in Spoken Dialog System with Gradual Speech Form Control %A Kageyama, Yukiko %A Chiba, Yuya %A Nose, Takashi %A Ito, Akinori %A , %J Proceedings of the 19th Annual SIGdial Meeting on Discourse and Dialogue %D 2018-01-01 %I Association for Computational Linguistics %~ DeepDyve