@inproceedings{tang-etal-2019-understanding, title = "Understanding Neural Machine Translation by Simplification: The Case of Encoder-free Models", author = "Tang, Gongbo and Sennrich, Rico and Nivre, Joakim", editor = "Mitkov, Ruslan and Angelova, Galia", booktitle = "Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2019)", month = sep, year = "2019", address = "Varna, Bulgaria", publisher = "INCOMA Ltd.", url = "https://aclanthology.org/R19-1136/", doi = "10.26615/978-954-452-056-4_136", pages = "1186--1193" }