Victor S. Portella, Nicholas J. A. Harvey. Lower Bounds for Private Estimation of Gaussian Covariance Matrices under All Reasonable Parameter Regimes. In Nika Haghtalab, Ankur Moitra, editors, The Thirty Eighth Annual Conference on Learning Theory, 30-4 July 2025, Lyon, France. Volume 291 of Proceedings of Machine Learning Research, pages 4640-4667, PMLR, 2025. [doi]
Abstract is missing.