BAG: Bi-directional Attention Entity Graph Convolutional Network for Multi-hop Reasoning Question Answering Yu Cao author Meng Fang author Dacheng Tao author 2019-06 text Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers) Jill Burstein editor Christy Doran editor Thamar Solorio editor Association for Computational Linguistics Minneapolis, Minnesota conference publication cao-etal-2019-bag 10.18653/v1/N19-1032 https://aclanthology.org/N19-1032/ 2019-06 357 362