@inproceedings{fei-liu-2015-social,
    title = "Social Media Text Classification under Negative Covariate Shift",
    author = "Fei, Geli  and
      Liu, Bing",
    editor = "M{\`a}rquez, Llu{\'i}s  and
      Callison-Burch, Chris  and
      Su, Jian",
    booktitle = "Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing",
    month = sep,
    year = "2015",
    address = "Lisbon, Portugal",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/D15-1282/",
    doi = "10.18653/v1/D15-1282",
    pages = "2347--2356"
}