@article{JMLR:v13:ying12a,
  author  = {Yiming Ying and Peng Li},
  title   = {Distance Metric Learning with Eigenvalue Optimization},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {1},
  pages   = {1--26},
  url     = {http://jmlr.org/papers/v13/ying12a.html}
}