Optimal Incremental Parsing via Best-First Dynamic Programming

@inproceedings{Zhao2013OptimalIP,
  title={Optimal Incremental Parsing via Best-First Dynamic Programming},
  author={Kai Zhao and James Cross and Liang Huang},
  booktitle={EMNLP},
  year={2013}
}
We present the first provably optimal polynomial time dynamic programming (DP) algorithm for best-first shift-reduce parsing, which applies the DP idea of Huang and Sagae (2010) to the best-first parser of Sagae and Lavie (2006) in a non-trivial way, reducing the complexity of the latter from exponential to polynomial. We prove the correctness of our algorithm rigorously. Experiments confirm that DP leads to a significant speedup on a probablistic best-first shift-reduce parser, and makes exact… CONTINUE READING
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