Unsupervised Question Answering by Cloze Translation Patrick Lewis author Ludovic Denoyer author Sebastian Riedel author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication lewis-etal-2019-unsupervised 10.18653/v1/P19-1484 https://aclanthology.org/P19-1484/ 2019-07 4896 4910