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Copenhagen: Tree approximations of semantic parsing problems

  • ,
  • Anders Søgaard
    ,
  • Jakob Elming
    ,
  • Dirk Hovy
    ,
  • Barbara Plank
    ,
  • Hector Martinez Alonso
  • Malmö University
Research Output:
Conference Article in Proceeding or Book/Report chapter
Article in proceedings
Peer-review

Publication Information

Output type

Research Output:
Conference Article in Proceeding or Book/Report chapter
Article in proceedings
Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 213-217

Publication milestones

  • Published - 2014

Publication status

Published - 2014

Publisher

Association for Computational Linguistics, United States

Host publication title

Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)

Abstract

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.