Minimum Imputed-Risk: Unsupervised Discriminative Training for Machine Translation Zhifei Li author Ziyuan Wang author Jason Eisner author Sanjeev Khudanpur author Brian Roark author 2011-07 text Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing Regina Barzilay editor Mark Johnson editor Association for Computational Linguistics Edinburgh, Scotland, UK. conference publication li-etal-2011-minimum https://aclanthology.org/D11-1085/ 2011-07 920 929