Exploiting CCG Structures with Tree Kernels for Speculation Detection

  title={Exploiting CCG Structures with Tree Kernels for Speculation Detection},
  author={Liliana Mamani S{\'a}nchez and Baoli Li and Carl Vogel},
  booktitle={CoNLL Shared Task},
Our CoNLL-2010 speculative sentence detector disambiguates putative keywords based on the following considerations: a speculative keyword may be composed of one or more word tokens; a speculative sentence may have one or more speculative keywords; and if a sentence contains at least one real speculative keyword, it is deemed speculative. A tree kernel classifier is used to assess whether a potential speculative keyword conveys speculation. We exploit information implicit in tree structures. For… CONTINUE READING