@article{learningsparselyusedovercomplete,
  title = {Learning Sparsely Used Overcomplete Dictionaries via Alternating Minimization},
  author = {Alekh Agarwal and Animashree Anandkumar and Prateek Jain and Praneeth Netrapalli},
  year = {2013},
  eprint = {1310.7991},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1310.7991v2},
}