Heterogeneous Supervision for Relation Extraction: A Representation Learning Approach Liyuan Liu author Xiang Ren author Qi Zhu author Shi Zhi author Huan Gui author Heng Ji author Jiawei Han author 2017-09 text Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing Martha Palmer editor Rebecca Hwa editor Sebastian Riedel editor Association for Computational Linguistics Copenhagen, Denmark conference publication liu-etal-2017-heterogeneous 10.18653/v1/D17-1005 https://aclanthology.org/D17-1005/ 2017-09 46 56