@InProceedings{czuba-prager-chu-carroll:2002:EMNLP02,
  author    = {Krzysztof Czuba  and  John Prager  and  Jennifer Chu-Carroll},
  title     = {A Machine-Learning Approach to Introspection in a Question Answering System},
  booktitle = {Proceedings of the 2002 Conference on Empirical Methods in Natural Language Processing},
  month     = {July},
  year      = {2002},
  publisher = {Association for Computational Linguistics},
  pages     = {265--272},
  url       = {http://www.aclweb.org/anthology/W02-1034},
  doi       = {10.3115/1118693.1118727}
}