@InProceedings{chen-vandurme:2017:EACLshort,
  author    = {Chen, Tongfei  and  Van Durme, Benjamin},
  title     = {Discriminative Information Retrieval for Question Answering Sentence Selection},
  booktitle = {Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics: Volume 2, Short Papers},
  month     = {April},
  year      = {2017},
  address   = {Valencia, Spain},
  publisher = {Association for Computational Linguistics},
  pages     = {719--725},
  abstract  = {We propose a framework for discriminative IR atop linguistic features, trained
	to improve the recall of answer candidate passage retrieval, the initial step
	in
	text-based question answering. We formalize this as an instance of linear
	feature-based IR, demonstrating a 34%-43% improvement in recall for candidate
	triage for QA.},
  url       = {http://www.aclweb.org/anthology/E17-2114}
}