Distantly Supervised Named Entity Recognition using Positive-Unlabeled Learning Minlong Peng author Xiaoyu Xing author Qi Zhang author Jinlan Fu author Xuanjing Huang author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication peng-etal-2019-distantly 10.18653/v1/P19-1231 https://aclanthology.org/P19-1231/ 2019-07 2409 2419