Orthogonality regularizer for question answering Chunyang Xiao author Guillaume Bouchard author Marc Dymetman author Claire Gardent author 2016-08 text Proceedings of the Fifth Joint Conference on Lexical and Computational Semantics Claire Gardent editor Raffaella Bernardi editor Ivan Titov editor Association for Computational Linguistics Berlin, Germany conference publication xiao-etal-2016-orthogonality 10.18653/v1/S16-2019 https://aclanthology.org/S16-2019/ 2016-08 142 147