@inproceedings{du-tan-2009-iterative,
    title = "An Iterative Reinforcement Approach for Fine-Grained Opinion Mining",
    author = "Du, Weifu  and
      Tan, Songbo",
    editor = "Ostendorf, Mari  and
      Collins, Michael  and
      Narayanan, Shri  and
      Oard, Douglas W.  and
      Vanderwende, Lucy",
    booktitle = "Proceedings of Human Language Technologies: The 2009 Annual Conference of the North {A}merican Chapter of the Association for Computational Linguistics",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/N09-1055/",
    pages = "486--493"
}