Arc-Hybrid Non-Projective Dependency Parsing with a Static-Dynamic Oracle

@inproceedings{Lhoneux2017ArcHybridND,
  title={Arc-Hybrid Non-Projective Dependency Parsing with a Static-Dynamic Oracle},
  author={Miryam de Lhoneux and Sara Stymne and Joakim Nivre},
  booktitle={IWPT},
  year={2017}
}
We extend the arc-hybrid transition system for dependency parsing with a SWAP transition that enables reordering of the words and construction of non-projective trees. Although this extension potentially breaks the arc-decomposability of the transition system, we show that the existing dynamic oracle can be modified and combined with a static oracle for the SWAP transition. Experiments on five languages with different degrees of non-projectivity show that the new system gives competitive… CONTINUE READING

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