We present experiments in using discourse structure for improving machine translation evaluation. We first design two discourse-aware similarity measures, which use all-subtree kernels to compare discourse parse trees in accordance with the Rhetorical Structure Theory. Then, we show that these measures can help improve a number of existing machine translation evaluation metrics both at the segment- and at the system-level. Rather than proposing a single new metric, we show that discourse information is complementary to the state-of-the-art evaluation metrics, and thus should be taken into account in the development of future richer evaluation metrics.
Using Discourse Structure Improves Machine Translation Evaluation
Francisco (Paco) Guzmán,Shafiq R. Joty,Lluís Màrquez i Villodre,Preslav Nakov
Published 2014 in Annual Meeting of the Association for Computational Linguistics
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2014
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Annual Meeting of the Association for Computational Linguistics
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Linguistics, Computer Science
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