Improving Query Graph Generation for Complex Question Answering over Knowledge Base Kechen Qin author Cheng Li author Virgil Pavlu author Javed Aslam author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication qin-etal-2021-improving-query 10.18653/v1/2021.emnlp-main.346 https://aclanthology.org/2021.emnlp-main.346/ 2021-11 4201 4207