@article{intersectingfacesnonnegativematrix,
  title = {Intersecting Faces: Non-negative Matrix Factorization With New Guarantees},
  author = {Rong Ge and James Zou},
  year = {2015},
  eprint = {1507.02189},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1507.02189v1},
}