@article{JMLR:v20:17-776,
  author  = {Ji Chen and Xiaodong Li},
  title   = {Model-free Nonconvex Matrix Completion: Local Minima Analysis and Applications in Memory-efficient Kernel PCA},
  journal = {Journal of Machine Learning Research},
  year    = {2019},
  volume  = {20},
  number  = {142},
  pages   = {1--39},
  url     = {http://jmlr.org/papers/v20/17-776.html}
}