Proceedings of the First Workshop on Natural Language Generation, Evaluation, and Metrics (GEM) Antoine Bosselut editor Esin Durmus editor Varun Prashant Gangal editor Sebastian Gehrmann editor Yacine Jernite editor Laura Perez-Beltrachini editor Samira Shaikh editor Wei Xu editor 2021-08 Association for Computational Linguistics Online text conference publication gem-2021-natural https://aclanthology.org/2021.gem-1.0/