@inproceedings{sparsefeaturelearningfordeepbelief,
  title = {Sparse Feature Learning for Deep Belief Networks},
  author = {Marc'Aurelio Ranzato and Y-Lan Boureau and Yann L. Cun},
  year = {2007},
  booktitle = {NeurIPS 2007 12},
  url = {http://papers.nips.cc/paper/3363-sparse-feature-learning-for-deep-belief-networks},
}