@article{improvingspanbasedquestionanswering,
  title = {Improving Span-based Question Answering Systems with Coarsely Labeled Data},
  author = {Hao Cheng and Ming-Wei Chang and Kenton Lee and Ankur Parikh and Michael Collins and Kristina Toutanova},
  year = {2018},
  eprint = {1811.02076},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1811.02076v1},
}