@inproceedings{li-etal-2015-tree,
    title = "When Are Tree Structures Necessary for Deep Learning of Representations?",
    author = "Li, Jiwei  and
      Luong, Thang  and
      Jurafsky, Dan  and
      Hovy, Eduard",
    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/D15-1278/",
    doi = "10.18653/v1/D15-1278",
    pages = "2304--2314"
}