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In-Order Chart-Based Constituent Parsing

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 نشر من قبل Yang Wei
 تاريخ النشر 2021
  مجال البحث الهندسة المعلوماتية
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We propose a novel in-order chart-based model for constituent parsing. Compared with previous CKY-style and top-down models, our model gains advantages from in-order traversal of a tree (rich features, lookahead information and high efficiency) and makes a better use of structural knowledge by encoding the history of decisions. Experiments on the Penn Treebank show that our model outperforms previous chart-based models and achieves competitive performance compared with other discriminative single models.



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