Span-based Hierarchical Semantic Parsing for Task-Oriented Dialog Panupong Pasupat author Sonal Gupta author Karishma Mandyam author Rushin Shah author Mike Lewis author Luke Zettlemoyer author 2019-11 text Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP) Kentaro Inui editor Jing Jiang editor Vincent Ng editor Xiaojun Wan editor Association for Computational Linguistics Hong Kong, China conference publication pasupat-etal-2019-span 10.18653/v1/D19-1163 https://aclanthology.org/D19-1163/ 2019-11 1520 1526