Cross-Lingual Document Retrieval with Smooth Learning Jiapeng Liu author Xiao Zhang author Dan Goldwasser author Xiao Wang 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 liu-etal-2020-cross-lingual 10.18653/v1/2020.coling-main.323 https://aclanthology.org/2020.coling-main.323/ 2020-12 3616 3629