Better, Faster, Stronger Sequence Tagging Constituent Parsers

NAACL 2019 David VilaresMostafa AbdouAnders Søgaard

Sequence tagging models for constituent parsing are faster, but less accurate than other types of parsers. In this work, we address the following weaknesses of such constituent parsers: (a) high error rates around closing brackets of long constituents, (b) large label sets, leading to sparsity, and (c) error propagation arising from greedy decoding... (read more)

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