Natural Language Generation Challenges for Explainable AI Ehud Reiter author 2019 text Proceedings of the 1st Workshop on Interactive Natural Language Technology for Explainable Artificial Intelligence (NL4XAI 2019) Jose M Alonso editor Alejandro Catala editor Association for Computational Linguistics conference publication reiter-2019-natural 10.18653/v1/W19-8402 https://aclanthology.org/W19-8402/ 2019 3 7