@inproceedings{Altun-etAl:2003:EMNLP,
  author = {Altun, Yasemin  and  Johnson, Mark  and  Hofmann, Thomas},
  title  = {Investigating Loss Functions and Optimization Methods for Discriminative Learning of Label Sequences},
  booktitle = {Proceedings of the 2003 Conference on Empirical Methods in Natural Language Processing},
  editor = {Michael Collins and Mark Steedman},
  url    = {http://www.aclweb.org/anthology/W03-1019.pdf},
  year   = 2003,
  pages  = {145--152}