Chu, Z., M. Chen, J. Chen, M. Wang, K. Gimpel, M. Faruqui, and X. Si. “How to Ask Better Questions? A Large-Scale Multi-Domain Dataset for Rewriting Ill-Formed Questions”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 05, Apr. 2020, pp. 7586-93, doi:10.1609/aaai.v34i05.6258.