Study on Unsupervised Statistical Machine Translation for Backtranslation Anush Kumar author Nihal V Nayak author Aditya Chandra author Mydhili K Nair author 2019-09 text Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2019) Ruslan Mitkov editor Galia Angelova editor INCOMA Ltd. Varna, Bulgaria conference publication kumar-etal-2019-study 10.26615/978-954-452-056-4_068 https://aclanthology.org/R19-1068/ 2019-09 578 582