@inproceedings{shimada-etal-2008-sentiment,
    title = "Sentiment Sentence Extraction Using a Hierarchical Directed Acyclic Graph Structure and a Bootstrap Approach",
    author = "Shimada, Kazutaka  and
      Hashimoto, Daigo  and
      Endo, Tsutomu",
    editor = "Roxas, Rachel Edita O.",
    booktitle = "Proceedings of the 22nd Pacific Asia Conference on Language, Information and Computation",
    month = nov,
    year = "2008",
    address = "The University of the Philippines Visayas Cebu College, Cebu City, Philippines",
    publisher = "De La Salle University, Manila, Philippines",
    url = "https://preview.aclanthology.org/fix-sig-urls/Y08-1034/",
    pages = "341--349"
}