@article{JMLR:v6:wolf05a,
  author  = {Lior Wolf and Amnon Shashua},
  title   = {Feature Selection for Unsupervised and Supervised Inference: The Emergence of Sparsity in a Weight-Based Approach},
  journal = {Journal of Machine Learning Research},
  year    = {2005},
  volume  = {6},
  number  = {62},
  pages   = {1855--1887},
  url     = {http://jmlr.org/papers/v6/wolf05a.html}
}