@article{notesonlowrankmatrixfactorization,
  title = {Notes on Low-rank Matrix Factorization},
  author = {Yuan Lu and Jie Yang},
  year = {2015},
  eprint = {1507.00333},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1507.00333v3},
}