@article{newalgorithmsforlearningincoherentand,
  title = {New Algorithms for Learning Incoherent and Overcomplete Dictionaries},
  author = {Sanjeev Arora and Rong Ge and Ankur Moitra},
  year = {2013},
  eprint = {1308.6273},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1308.6273v5},
}