On Hallucination and Predictive Uncertainty in Conditional Language Generation Yijun Xiao author William Yang Wang author 2021-04 text Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume Paola Merlo editor Jorg Tiedemann editor Reut Tsarfaty editor Association for Computational Linguistics Online conference publication xiao-wang-2021-hallucination 10.18653/v1/2021.eacl-main.236 https://aclanthology.org/2021.eacl-main.236/ 2021-04 2734 2744