Classifier combination for contextual idiom detection without labelled data

  • Authors:
  • Linlin Li;Caroline Sporleder

  • Affiliations:
  • Saarland University, Saarbrücken, Germany;Saarland University, Saarbrücken, Germany

  • Venue:
  • EMNLP '09 Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1
  • Year:
  • 2009

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Abstract

We propose a novel unsupervised approach for distinguishing literal and non-literal use of idiomatic expressions. Our model combines an unsupervised and a supervised classifier. The former bases its decision on the cohesive structure of the context and labels training data for the latter, which can then take a larger feature space into account. We show that a combination of both classifiers leads to significant improvements over using the unsupervised classifier alone.