Improving Unsupervised Question Answering via Summarization-Informed Question Generation Chenyang Lyu author Lifeng Shang author Yvette Graham author Jennifer Foster author Xin Jiang author Qun Liu 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 lyu-etal-2021-improving 10.18653/v1/2021.emnlp-main.340 https://aclanthology.org/2021.emnlp-main.340/ 2021-11 4134 4148