@inproceedings{starbird2012learning,
  title={Learning from the crowd: collaborative filtering techniques for identifying on-the-ground Twitterers during mass disruptions},
  author={Starbird, Kate and Muzny, Felix and Palen, Leysia},
  booktitle={Proceedings of 9th International Conference on Information Systems for Crisis Response and Management (ISCRAM)},
  year={2012},
  url={http://idl.iscram.org/files/starbird/2012/208_Starbird_etal2012.pdf}
}