Paper: Jointly or Separately: Which is Better for Parsing Heterogeneous Dependencies?

ACL ID C14-1051
Title Jointly or Separately: Which is Better for Parsing Heterogeneous Dependencies?
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2014
Authors

For languages such as English, several constituent-to-dependency conversion schemes are pro- posed to construct corpora for dependency parsing. It is hard to determine which scheme is better because they reflect different views of dependency analysis. We usually obtain dependen- cy parsers of different schemes by training with the specific corpus separately. It neglects the correlations between these schemes, which can potentially benefit the parsers. In this paper, we study how these correlations influence final dependency parsing performances, by proposing a joint model which can make full use of the correlations between heterogeneous dependencies, and finally we can answer the following question: parsing heterogeneous dependencies jointly or separately, which is better? We conduct exper...