@inproceedings{macavaney:trec2018-car,
  author = {MacAvaney, Sean and Yates, Andrew and Goharian, Nazli and Frieder, Ophir},
  title = {PACRR Gated Expansion for TREC CAR 2018},
  booktitle = {Proceedings of the 27th Text REtrieval Conference},
  year = {2018}
}