The Teacher-Student Chatroom Corpus Andrew Caines author Helen Yannakoudakis author Helena Edmondson author Helen Allen author Pascual Pérez-Paredes author Bill Byrne author Paula Buttery author 2020-11 text Proceedings of the 9th Workshop on NLP for Computer Assisted Language Learning David Alfter editor Elena Volodina editor Ildikó Pilan editor Herbert Lange editor Lars Borin editor LiU Electronic Press Gothenburg, Sweden conference publication caines-etal-2020-teacher https://aclanthology.org/2020.nlp4call-1.2/ 2020-11 10 20