@article{randomizedleastsquaresregressioncombinin,
  title = {A Projector-Based Approach to Quantifying Total and Excess Uncertainties for Sketched Linear Regression},
  author = {Jocelyn T. Chi and Ilse C. F. Ipsen},
  year = {2018},
  eprint = {1808.05924},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1808.05924v3},
}