Modelling Human Clarification Strategies Svetlana Stoyanchev author Alex Liu author Julia Hirschberg author 2013-08 text Proceedings of the SIGDIAL 2013 Conference Maxine Eskenazi editor Michael Strube editor Barbara Di Eugenio editor Jason D Williams editor Association for Computational Linguistics Metz, France conference publication stoyanchev-etal-2013-modelling https://aclanthology.org/W13-4021/ 2013-08 137 141