@InProceedings{yang-yih-meek:2015:EMNLP,
  author    = {Yang, Yi  and  Yih, Wen-tau  and  Meek, Christopher},
  title     = {WikiQA: A Challenge Dataset for Open-Domain Question Answering},
  booktitle = {Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing},
  month     = {September},
  year      = {2015},
  address   = {Lisbon, Portugal},
  publisher = {Association for Computational Linguistics},
  pages     = {2013--2018},
  url       = {http://aclweb.org/anthology/D15-1237}
}