A. See, P. Liu, and C. Manning. (2017)cite arxiv:1704.04368Comment: Add METEOR evaluation results, add some citations, fix some equations (what are now equations 1, 8 and 11 were missing a bias term), fix url to pyrouge package, add acknowledgments.
Z. Tu, Z. Lu, Y. Liu, X. Liu, and H. Li. (2016)cite arxiv:1601.04811Comment: Add subjective evaluation on top of ACL version: 25% of source words are under-translated by NMT.
Z. Yang, D. Yang, C. Dyer, X. He, A. Smola, and E. Hovy. Proceedings of the 2016 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, page 1480--1489. (2016)
J. Tan, X. Wan, and J. Xiao. Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 1, page 1171--1181. (2017)