Broad-Coverage Semantic Parsing as Transduction

IJCNLP 2019  ·  Sheng Zhang, Xutai Ma, Kevin Duh, Benjamin Van Durme ·

We unify different broad-coverage semantic parsing tasks under a transduction paradigm, and propose an attention-based neural framework that incrementally builds a meaning representation via a sequence of semantic relations. By leveraging multiple attention mechanisms, the transducer can be effectively trained without relying on a pre-trained aligner. Experiments conducted on three separate broad-coverage semantic parsing tasks -- AMR, SDP and UCCA -- demonstrate that our attention-based neural transducer improves the state of the art on both AMR and UCCA, and is competitive with the state of the art on SDP.

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Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
AMR Parsing LDC2014T12 Broad-Coverage Semantic Parsing as Transduction F1 Full 71.3 # 4
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AMR Parsing LDC2017T10 Zhang et al. Smatch 77.0 # 20
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UCCA Parsing SemEval 2019 Task 1 Neural Transducer English-Wiki (open) F1 76.6 # 2
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