@InProceedings{TomAih07,
 author = {Ryota Tomioka and Kazuyuki Aihara},
 title  = {{Classifying Matrices with a Spectral Regularization}},
 booktitle = {ICML '07: Proceedings of the 24th international conference on Machine learning},
 publisher = {ACM Press},
 pages = {895--902},
 year      = {2007},
  pdf =          {http://www.machinelearning.org/proceedings/icml2007/papers/401.pdf},
}