G. Burrull, N. Libedinsky, and D. Plaza. (2021)cite arxiv:2105.04609Comment: 21 pages, 9 colored figures. The new Preliminaries section includes the new Proposition 2.5 which simplifies the proof of the Main Theorem. New background material for the affine Weyl group was included. The old Appendix was replaced by the proofs of Propositions 3.1 and 3.3 in greater detail. The acknowledgments section was added. Final version.
S. Chen, E. Dobriban, and J. Lee. (2019)cite arxiv:1907.10905Comment: Changed title. Added results on overparametrized 2-layer nets. Added error bars to experiments. Numerous other minor improvements.
A. Subbaswamy, P. Schulam, and S. Saria. (2018)cite arxiv:1812.04597Comment: In Proceedings of the 22nd International Conference on Artificial Intelligence and Statistics (AISTATS), 2019. Previously presented at the NeurIPS 2018 Causal Learning Workshop.