Limitations and Challenges of Unsupervised Cross-lingual Pre-training Martín Quesada Zaragoza author Francisco Casacuberta author 2022-09 text Proceedings of the 15th biennial conference of the Association for Machine Translation in the Americas (Volume 1: Research Track) Kevin Duh editor Francisco Guzmán editor Association for Machine Translation in the Americas Orlando, USA conference publication quesada-zaragoza-casacuberta-2022-limitations https://aclanthology.org/2022.amta-research.13/ 2022-09 175 187