@article{bisazza-federico-2013-dynamically,
title = "Dynamically Shaping the Reordering Search Space of Phrase-Based Statistical Machine Translation",
author = "Bisazza, Arianna and
Federico, Marcello",
editor = "Lin, Dekang and
Collins, Michael",
journal = "Transactions of the Association for Computational Linguistics",
volume = "1",
year = "2013",
address = "Cambridge, MA",
publisher = "MIT Press",
url = "https://aclanthology.org/Q13-1027",
doi = "10.1162/tacl_a_00231",
pages = "327--340",
abstract = "Defining the reordering search space is a crucial issue in phrase-based SMT between distant languages. In fact, the optimal trade-off between accuracy and complexity of decoding is nowadays reached by harshly limiting the input permutation space. We propose a method to dynamically shape such space and, thus, capture long-range word movements without hurting translation quality nor decoding time. The space defined by loose reordering constraints is dynamically pruned through a binary classifier that predicts whether a given input word should be translated right after another. The integration of this model into a phrase-based decoder improves a strong Arabic-English baseline already including state-of-the-art early distortion cost (Moore and Quirk, 2007) and hierarchical phrase orientation models (Galley and Manning, 2008). Significant improvements in the reordering of verbs are achieved by a system that is notably faster than the baseline, while bleu and meteor remain stable, or even increase, at a very high distortion limit.",
}
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%0 Journal Article
%T Dynamically Shaping the Reordering Search Space of Phrase-Based Statistical Machine Translation
%A Bisazza, Arianna
%A Federico, Marcello
%J Transactions of the Association for Computational Linguistics
%D 2013
%V 1
%I MIT Press
%C Cambridge, MA
%F bisazza-federico-2013-dynamically
%X Defining the reordering search space is a crucial issue in phrase-based SMT between distant languages. In fact, the optimal trade-off between accuracy and complexity of decoding is nowadays reached by harshly limiting the input permutation space. We propose a method to dynamically shape such space and, thus, capture long-range word movements without hurting translation quality nor decoding time. The space defined by loose reordering constraints is dynamically pruned through a binary classifier that predicts whether a given input word should be translated right after another. The integration of this model into a phrase-based decoder improves a strong Arabic-English baseline already including state-of-the-art early distortion cost (Moore and Quirk, 2007) and hierarchical phrase orientation models (Galley and Manning, 2008). Significant improvements in the reordering of verbs are achieved by a system that is notably faster than the baseline, while bleu and meteor remain stable, or even increase, at a very high distortion limit.
%R 10.1162/tacl_a_00231
%U https://aclanthology.org/Q13-1027
%U https://doi.org/10.1162/tacl_a_00231
%P 327-340
Markdown (Informal)
[Dynamically Shaping the Reordering Search Space of Phrase-Based Statistical Machine Translation](https://aclanthology.org/Q13-1027) (Bisazza & Federico, TACL 2013)
ACL