Match without a referee: evaluating MT adequacy without reference translations

  • Authors:
  • Yashar Mehdad;Matteo Negri;Marcello Federico

  • Affiliations:
  • Fondazione Bruno Kessler, Trento, Italy;Fondazione Bruno Kessler, Trento, Italy;Fondazione Bruno Kessler, Trento, Italy

  • Venue:
  • WMT '12 Proceedings of the Seventh Workshop on Statistical Machine Translation
  • Year:
  • 2012

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Abstract

We address two challenges for automatic machine translation evaluation: a) avoiding the use of reference translations, and b) focusing on adequacy estimation. From an economic perspective, getting rid of costly hand-crafted reference translations (a) permits to alleviate the main bottleneck in MT evaluation. From a system evaluation perspective, pushing semantics into MT (b) is a necessity in order to complement the shallow methods currently used overcoming their limitations. Casting the problem as a cross-lingual textual entailment application, we experiment with different benchmarks and evaluation settings. Our method shows high correlation with human judgements and good results on all datasets without relying on reference translations.