Making Grounding Decisions: Data-driven Estimation of Dialogue Costs and Confidence Thresholds Gabriel Skantze author 2007-09 text Proceedings of the 8th SIGdial Workshop on Discourse and Dialogue Harry Bunt editor Simon Keizer editor Tim Paek editor Association for Computational Linguistics Antwerp, Belgium conference publication skantze-2007-making 10.18653/v1/2007.sigdial-1.35 https://aclanthology.org/2007.sigdial-1.35/ 2007-09 206 210