ToHRE: A Top-Down Classification Strategy with Hierarchical Bag Representation for Distantly Supervised Relation Extraction Erxin Yu author Wenjuan Han author Yuan Tian author Yi Chang 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 yu-etal-2020-tohre 10.18653/v1/2020.coling-main.146 https://aclanthology.org/2020.coling-main.146/ 2020-12 1665 1676