Item Response Theory for Efficient Human Evaluation of Chatbots João Sedoc author Lyle Ungar author 2020-11 text Proceedings of the First Workshop on Evaluation and Comparison of NLP Systems Steffen Eger editor Yang Gao editor Maxime Peyrard editor Wei Zhao editor Eduard Hovy editor Association for Computational Linguistics Online conference publication sedoc-ungar-2020-item 10.18653/v1/2020.eval4nlp-1.3 https://aclanthology.org/2020.eval4nlp-1.3/ 2020-11 21 33