Massively Multilingual Sentence Embeddings for Zero-Shot Cross-Lingual Transfer and Beyond Mikel Artetxe author Holger Schwenk author 2019 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal artetxe-schwenk-2019-massively 10.1162/tacl_a_00288 https://aclanthology.org/Q19-1038/ 2019 7 597 610