Back-Training excels Self-Training at Unsupervised Domain Adaptation of Question Generation and Passage Retrieval Devang Kulshreshtha author Robert Belfer author Iulian Vlad Serban author Siva Reddy 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 kulshreshtha-etal-2021-back 10.18653/v1/2021.emnlp-main.566 https://aclanthology.org/2021.emnlp-main.566/ 2021-11 7064 7078