Improving Factual Consistency of News Summarization by Contrastive Preference Optimization Huawen Feng author Yan Fan author Xiong Liu author Ting-En Lin author Zekun Yao author Yuchuan Wu author Fei Huang author Yongbin Li author Qianli Ma author 2024-11 text Findings of the Association for Computational Linguistics: EMNLP 2024 Yaser Al-Onaizan editor Mohit Bansal editor Yun-Nung Chen editor Association for Computational Linguistics Miami, Florida, USA conference publication feng-etal-2024-improving-factual 10.18653/v1/2024.findings-emnlp.648 https://aclanthology.org/2024.findings-emnlp.648/ 2024-11 11084 11100