@article{JMLR:v16:anandkumar15a,
  author  = {Animashree Anandkumar and Daniel Hsu and Majid Janzamin and Sham Kakade},
  title   = {When Are Overcomplete Topic Models Identifiable? Uniqueness of Tensor Tucker Decompositions with Structured Sparsity},
  journal = {Journal of Machine Learning Research},
  year    = {2015},
  volume  = {16},
  number  = {82},
  pages   = {2643--2694},
  url     = {http://jmlr.org/papers/v16/anandkumar15a.html}
}