OPPO’s Machine Translation Systems for WMT20
In this paper we demonstrate our (OPPO’s) machine translation systems for the WMT20 Shared Task on News Translation for all the 22 language pairs. We will give an overview of the common aspects across all the systems firstly, including two parts: the data preprocessing part will show how the data are preprocessed and filtered, and the system part will show our models architecture and the techniques we followed. Detailed information, such as training hyperparameters and the results generated by each technique will be depicted in the corresponding subsections. Our final submissions ranked top in 6 directions (English \leftrightarrow Czech, English \leftrightarrow Russian, French \rightarrow German and Tamil \rightarrow English), third in 2 directions (English \rightarrow German, English \rightarrow Japanese), and fourth in 2 directions (English \rightarrow Pashto and and English \rightarrow Tamil).
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