An Analysis of Source-Side Grammatical Errors in NMT
An Analysis of Source-Side Grammatical Errors in NMT
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DOI:
10.18653/v1/w19-4822
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发表时间:
2019-05
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影响因子:
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通讯作者:
Antonios Anastasopoulos
中科院分区:
文献类型:
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作者:
Antonios Anastasopoulos
The quality of Neural Machine Translation (NMT) has been shown to significantly degrade when confronted with source-side noise. We present the first large-scale study of state-of-the-art English-to-German NMT on real grammatical noise, by evaluating on several Grammar Correction corpora. We present methods for evaluating NMT robustness without true references, and we use them for extensive analysis of the effects that different grammatical errors have on the NMT output. We also introduce a technique for visualizing the divergence distribution caused by a source-side error, which allows for additional insights.