On Faithfulness and Factuality in Abstractive Summarization Joshua Maynez author Shashi Narayan author Bernd Bohnet author Ryan McDonald author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication maynez-etal-2020-faithfulness 10.18653/v1/2020.acl-main.173 https://aclanthology.org/2020.acl-main.173/ 2020-07 1906 1919