@article{modelselectionfornonnegativematrix,
  title = {Model Selection for Nonnegative Matrix Factorization by Support Union Recovery},
  author = {Zhaoqiang Liu},
  year = {2018},
  eprint = {1810.10078},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1810.10078v1},
}