@inproceedings{lafferty2001conditional,
  acmid = {655813},
  address = {San Francisco, CA, USA},
  author = {Lafferty, John D. and McCallum, Andrew and Pereira, Fernando C. N.},
  booktitle = {Proceedings of the Eighteenth International Conference on Machine Learning},
  interhash = {574c59001ecc3aa04850e1751d96c137},
  intrahash = {180c5d6097317fa1b19ca8df75341230},
  isbn = {1-55860-778-1},
  numpages = {8},
  pages = {282--289},
  publisher = {Morgan Kaufmann Publishers Inc.},
  title = {Conditional Random Fields: Probabilistic Models for Segmenting and Labeling Sequence Data},
  url = {http://dl.acm.org/citation.cfm?id=645530.655813},
  year = 2001
}