Speaker-change Aware CRF for Dialogue Act Classification Guokan Shang author Antoine Tixier author Michalis Vazirgiannis author Jean-Pierre Lorré author 2020-12 text Proceedings of the 28th International Conference on Computational Linguistics Donia Scott editor Nuria Bel editor Chengqing Zong editor International Committee on Computational Linguistics Barcelona, Spain (Online) conference publication shang-etal-2020-speaker 10.18653/v1/2020.coling-main.40 https://aclanthology.org/2020.coling-main.40/ 2020-12 450 464