@inproceedings{qian-etal-2007-relation,
    title = "Relation Extraction Using Convolution Tree Kernel Expanded with Entity Features",
    author = "Qian, Longhua  and
      Zhou, Guodong  and
      Zhu, Qiaomin  and
      Qian, Peide",
    booktitle = "Proceedings of the 21st Pacific Asia Conference on Language, Information and Computation",
    month = nov,
    year = "2007",
    address = "Seoul National University, Seoul, Korea",
    publisher = "The Korean Society for Language and Information (KSLI)",
    url = "https://preview.aclanthology.org/fix-sig-urls/Y07-1043/",
    doi = "http://hdl.handle.net/2065/29114",
    pages = "415--421"
}