A data-driven model of explanations for a chatbot that helps to practice conversation in a foreign language Sviatlana Höhn author 2017-08 text Proceedings of the 18th Annual SIGdial Meeting on Discourse and Dialogue Kristiina Jokinen editor Manfred Stede editor David DeVault editor Annie Louis editor Association for Computational Linguistics Saarbrücken, Germany conference publication hohn-2017-data 10.18653/v1/W17-5547 https://aclanthology.org/W17-5547/ 2017-08 395 405