DocAsRef: An Empirical Study on Repurposing Reference-based Summary Quality Metrics as Reference-free Metrics Forrest Bao author Ruixuan Tu author Ge Luo author Yinfei Yang author Hebi Li author Minghui Qiu author Youbiao He author Cen Chen author 2023-12 text Findings of the Association for Computational Linguistics: EMNLP 2023 Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication bao-etal-2023-docasref 10.18653/v1/2023.findings-emnlp.87 https://aclanthology.org/2023.findings-emnlp.87/ 2023-12 1226 1235