@article{JMLR:v13:shen12a,
  author  = {Chunhua Shen and Junae Kim and Lei Wang and Anton van den Hengel},
  title   = {Positive Semidefinite Metric Learning Using Boosting-like Algorithms},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {35},
  pages   = {1007--1036},
  url     = {http://jmlr.org/papers/v13/shen12a.html}
}