deltaBLEU: A Discriminative Metric for Generation Tasks with Intrinsically Diverse Targets Michel Galley author Chris Brockett author Alessandro Sordoni author Yangfeng Ji author Michael Auli author Chris Quirk author Margaret Mitchell author Jianfeng Gao author Bill Dolan author 2015-07 text Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers) Chengqing Zong editor Michael Strube editor Association for Computational Linguistics Beijing, China conference publication galley-etal-2015-deltableu 10.3115/v1/P15-2073 https://aclanthology.org/P15-2073/ 2015-07 445 450