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arXiv 1809.00129cs.CL
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用于翻译质量评估的上下文编码

Contextual Encoding for Translation Quality Estimation

Carnegie Mellon University(卡内基梅隆大学)

Junjie Hu, Wei-Cheng Chang, Yuexin Wu, Graham Neubig

摘要:

词级质量估计(QE)的任务包括获取源句子和机器生成的翻译,并预测输出中哪些词是正确的,哪些是错误的。本文提出了一种利用三部分神经网络方法对每个目标词的局部和全局上下文信息进行有效编码的方法。第一部分使用嵌入层来表示两种语言中的单词及其词性标记。第二部分利用一维卷积层来整合每个目标词的本地上下文信息。第三部分应用一组前馈和递归神经网络,在进行预测之前对句子中的全局上下文进行进一步编码。该模型作为CMU条目提交给WMT2018量化宽松共享任务,并取得了很好的成绩,在六个轨道中的三个轨道中排名第一。

英文摘要:

The task of word-level quality estimation (QE) consists of taking a source sentence and machine-generated translation, and predicting which words in the output are correct and which are wrong. In this paper, propose a method to effectively encode the local and global contextual information for each target word using a three-part neural network approach. The first part uses an embedding layer to represent words and their part-of-speech tags in both languages. The second part leverages a one-dimensional convolution layer to integrate local context information for each target word. The third part applies a stack of feed-forward and recurrent neural networks to further encode the global context in the sentence before making the predictions. This model was submitted as the CMU entry to the WMT2018 shared task on QE, and achieves strong results, ranking first in three of the six tracks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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