Proceedings of the Third Workshop on Natural Language Generation, Evaluation, and Metrics (GEM) Sebastian Gehrmann editor Alex Wang editor João Sedoc editor Elizabeth Clark editor Kaustubh Dhole editor Khyathi Raghavi Chandu editor Enrico Santus editor Hooman Sedghamiz editor 2023-12 Association for Computational Linguistics Singapore text conference publication gem-2023-natural https://aclanthology.org/2023.gem-1.0/