Referring to what you know and do not know: Making Referring Expression Generation Models Generalize To Unseen Entities Rossana Cunha author Thiago Castro Ferreira author Adriana Pagano author Fabio Alves author 2020-12 text Proceedings of the 28th International Conference on Computational Linguistics Donia Scott editor Nuria Bel editor Chengqing Zong editor International Committee on Computational Linguistics Barcelona, Spain (Online) conference publication cunha-etal-2020-referring 10.18653/v1/2020.coling-main.205 https://aclanthology.org/2020.coling-main.205/ 2020-12 2261 2272