cushLEPOR uses LABSE distilled knowledge to improve correlation with human translation evaluations Gleb Erofeev author Irina Sorokina author Lifeng Han author Serge Gladkoff author 2021-08 text Proceedings of Machine Translation Summit XVIII: Users and Providers Track Janice Campbell editor Ben Huyck editor Stephen Larocca editor Jay Marciano editor Konstantin Savenkov editor Alex Yanishevsky editor Association for Machine Translation in the Americas Virtual conference publication erofeev-etal-2021-cushlepor https://aclanthology.org/2021.mtsummit-up.28/ 2021-08 421 439