@inproceedings{li-etal-2015-semi,
    title = "Semi-Stacking for Semi-supervised Sentiment Classification",
    author = "Li, Shoushan  and
      Huang, Lei  and
      Wang, Jingjing  and
      Zhou, Guodong",
    editor = "Zong, Chengqing  and
      Strube, Michael",
    booktitle = "Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)",
    month = jul,
    year = "2015",
    address = "Beijing, China",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P15-2005/",
    doi = "10.3115/v1/P15-2005",
    pages = "27--31"
}