@inproceedings{gao-etal-2015-cost,
    title = "Cost Optimization in Crowdsourcing Translation: Low cost translations made even cheaper",
    author = "Gao, Mingkun  and
      Xu, Wei  and
      Callison-Burch, Chris",
    editor = "Mihalcea, Rada  and
      Chai, Joyce  and
      Sarkar, Anoop",
    booktitle = "Proceedings of the 2015 Conference of the North {A}merican Chapter of the Association for Computational Linguistics: Human Language Technologies",
    month = may # "–" # jun,
    year = "2015",
    address = "Denver, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/N15-1072/",
    doi = "10.3115/v1/N15-1072",
    pages = "705--713"
}