Improving Pre-Trained Multilingual Model with Vocabulary Expansion Hai Wang author Dian Yu author Kai Sun author Jianshu Chen author Dong Yu author 2019-11 text Proceedings of the 23rd Conference on Computational Natural Language Learning (CoNLL) Mohit Bansal editor Aline Villavicencio editor Association for Computational Linguistics Hong Kong, China conference publication wang-etal-2019-improving 10.18653/v1/K19-1030 https://aclanthology.org/K19-1030/ 2019-11 316 327