Copenhagen: Tree approximations of semantic parsing problems

Natalie Schluter, Anders Søgaard, Jakob Elming, Dirk Hovy, Barbara Plank, Hector Martinez Alonso, Anders Johanssen, Sigrid Klerke

Publikation: Konference artikel i Proceeding eller bog/rapport kapitelKonferencebidrag i proceedingsForskningpeer review

Abstrakt

In this shared task paper for SemEval2014 Task 8, we show that most semantic structures can be approximated by trees through a series of almost bijective graph transformations. We transform input graphs, apply off-the-shelf methods from syntactic parsing on the resulting trees, and retrieve output graphs. Using tree approximations, we obtain good results across three semantic formalisms,
with a 15.9% error reduction over a stateof-the-art semantic role labeling system on development data. Our system came in 3/6 in the shared task closed track.
OriginalsprogEngelsk
TitelProceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)
ForlagAssociation for Computational Linguistics
Publikationsdato2014
Sider213-217
StatusUdgivet - 2014
Udgivet eksterntJa

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