@InProceedings{arnold-nallapati-cohen:2008:ACLMain,
  author    = {Arnold, Andrew  and  Nallapati, Ramesh  and  Cohen, William W.},
  title     = {Exploiting Feature Hierarchy for Transfer Learning in Named Entity Recognition},
  booktitle = {Proceedings of ACL-08: HLT},
  month     = {June},
  year      = {2008},
  address   = {Columbus, Ohio},
  publisher = {Association for Computational Linguistics},
  pages     = {245--253},
  url       = {http://www.aclweb.org/anthology/P/P08/P08-1029}
}