Papers › Confidence through Attention

Confidence through Attention

10 Oct 2017MTSummit 2017 9arXiv:1710.03743archive 2025-07-28

Matīss Rikters, Mark Fishel

Attention distributions of the generated translations are a useful bi-product of attention-based recurrent neural network translation models and can be treated as soft alignments between the input and output tokens. In this work, we use attention distributions as a confidence metric for output translations. We present two strategies of using the attention distributions: filtering out bad translations from a large back-translated corpus, and selecting the best translation in a hybrid setup of two different translation systems. While manual evaluation indicated only a weak correlation between our confidence score and human judgments, the use-cases showed improvements of up to 2.22 BLEU points for filtering and 0.99 points for hybrid translation, tested on English<->German and English<->Latvian translation.

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M4t1ss/ConfidenceThroughAttention officialmentioned in paper report
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TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Machine Translation WMT 2017 Latvian-English Attention-based Hybrid NMT combination BLEU 14.83 #3 of 4 Archive leaderboard report

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