N. Konstantinov, and C. Lampert. (2019)cite arxiv:1901.10310Comment: Accepted to International Conference on Machine Learning (ICML), 2019; Camera-ready version.
T. Cohen, M. Weiler, B. Kicanaoglu, and M. Welling. (2019)cite arxiv:1902.04615Comment: To appear in the Proceedings of the International Conference on Machine Learning (ICML), 2019.