Automatic projection of semantic structures: an application to pairwise translation ranking

  • Authors:
  • Daniele Pighin;Lluís Màrquez

  • Affiliations:
  • Universitat Politècnica de Catalunya;Universitat Politècnica de Catalunya

  • Venue:
  • SSST-5 Proceedings of the Fifth Workshop on Syntax, Semantics and Structure in Statistical Translation
  • Year:
  • 2011

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Abstract

We present a model for the inclusion of semantic role annotations in the framework of confidence estimation for machine translation. The model has several interesting properties, most notably: 1) it only requires a linguistic processor on the (generally well-formed) source side of the translation; 2) it does not directly rely on properties of the translation model (hence, it can be applied beyond phrase-based systems). These features make it potentially appealing for system ranking, translation re-ranking and user feedback evaluation. Preliminary experiments in pairwise hypothesis ranking on five confidence estimation benchmarks show that the model has the potential to capture salient aspects of translation quality.