@inproceedings{Ravichandran:2003:MLSUM,
  author = {Ravichandran, Deepak  and  Hovy, Eduard  and  Och, Franz Josef},
  title  = {Statistical {QA} - Classifier vs. Re-ranker: What's the difference?},
  booktitle = {Proceedings of the ACL 2003 Workshop on Multilingual Summarization and Question Answering},
  editor = {Abraham Ittycheriah, Tsuneaki Kato, Chin-Yew Lin and Yutaka Sasaki},
  url    = {http://www.aclweb.org/anthology/W03-1209.pdf},
  year   = 2003,
  pages  = {69--75}
}