User Input and Interactions on Microsoft Research ESL Assistant Claudia Leacock author Michael Gamon author Chris Brockett author 2009-06 text Proceedings of the Fourth Workshop on Innovative Use of NLP for Building Educational Applications Joel Tetreault editor Jill Burstein editor Claudia Leacock editor Association for Computational Linguistics Boulder, Colorado conference publication leacock-etal-2009-user https://aclanthology.org/W09-2111/ 2009-06 73 81