Xinliang Frederick Zhang, Heming Sun, Xiang Yue, Simon M. Lin, Huan Sun. COUGH: A Challenge Dataset and Models for COVID-19 FAQ Retrieval. In Marie-Francine Moens, Xuanjing Huang, Lucia Specia, Scott Wen-tau Yih, editors, Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing, EMNLP 2021, Virtual Event / Punta Cana, Dominican Republic, 7-11 November, 2021. pages 3759-3769, Association for Computational Linguistics, 2021. [doi]