@article{JMLR:v22:20-1067,
  author  = {Tian Tong and Cong Ma and Yuejie Chi},
  title   = {Accelerating Ill-Conditioned Low-Rank Matrix Estimation via Scaled Gradient Descent},
  journal = {Journal of Machine Learning Research},
  year    = {2021},
  volume  = {22},
  number  = {150},
  pages   = {1--63},
  url     = {http://jmlr.org/papers/v22/20-1067.html}
}