Towards Reference-free Text Simplification Evaluation with a BERT Siamese Network Architecture Xinran Zhao author Esin Durmus author Dit-Yan Yeung author 2023-07 text Findings of the Association for Computational Linguistics: ACL 2023 Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication zhao-etal-2023-towards 10.18653/v1/2023.findings-acl.838 https://aclanthology.org/2023.findings-acl.838/ 2023-07 13250 13264