Collaborative Policy Learning for Open Knowledge Graph Reasoning Cong Fu author Tong Chen author Meng Qu author Woojeong Jin author Xiang Ren 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 fu-etal-2019-collaborative 10.18653/v1/D19-1269 https://aclanthology.org/D19-1269/ 2019-11 2672 2681