Look-back Decoding for Open-Ended Text Generation Nan Xu author Chunting Zhou author Asli Celikyilmaz author Xuezhe Ma author 2023-12 text Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication xu-etal-2023-look 10.18653/v1/2023.emnlp-main.66 https://aclanthology.org/2023.emnlp-main.66/ 2023-12 1039 1050