A Large-Scale Corpus of E-mail Conversations with Standard and Two-Level Dialogue Act Annotations Motoki Taniguchi author Yoshihiro Ueda author Tomoki Taniguchi author Tomoko Ohkuma 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 taniguchi-etal-2020-large 10.18653/v1/2020.coling-main.436 https://aclanthology.org/2020.coling-main.436/ 2020-12 4969 4980