@InProceedings{alfonseca-EtAl:2012:ACL2012short,
  author    = {Alfonseca, Enrique  and  Filippova, Katja  and  Delort, Jean-Yves  and  Garrido, Guillermo},
  title     = {Pattern Learning for Relation Extraction with a Hierarchical Topic Model},
  booktitle = {Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)},
  month     = {July},
  year      = {2012},
  address   = {Jeju Island, Korea},
  publisher = {Association for Computational Linguistics},
  pages     = {54--59},
  url       = {http://www.aclweb.org/anthology/P12-2011}
}