Clustering Words by Syntactic Similarity improves Dependency Parsing of Predicate-argument Structures

@inproceedings{Sagae2009ClusteringWB,
  title={Clustering Words by Syntactic Similarity improves Dependency Parsing of Predicate-argument Structures},
  author={Kenji Sagae and Andrew S. Gordon},
  booktitle={IWPT},
  year={2009}
}
We present an approach for deriving syntactic word clusters from parsed text, grouping words according to their unlexicalized syntactic contexts. We then explore the use of these syntactic clusters in leveraging a large corpus of trees generated by a high-accuracy parser to improve the accuracy of another parser based on a different formalism for representing a different level of sentence structure. In our experiments, we use phrase-structure trees to produce syntactic word clusters that are… CONTINUE READING
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