@article{onlinecovariancematrixestimationin,
  title = {Online Covariance Matrix Estimation in Sketched Newton Methods},
  author = {Wei Kuang and Mihai Anitescu and Sen Na},
  year = {2025},
  eprint = {2502.07114},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2502.07114v1},
}