@article{adaptivestochasticgradientdescentonthe,
  title = {Adaptive Stochastic Gradient Descent on the Grassmannian for Robust Low-Rank Subspace Recovery and Clustering},
  author = {Jun He and Yue Zhang},
  year = {2014},
  eprint = {1412.4044},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1412.4044v2},
}