Reproduce experiments with external MT data

[lyc2001]

Hello,

Thank you very much for sharing your work!
I have followed your script to run the experiments on the En->De ST. I got a BLEU score of 25.31 without using external MT data. With external MT data used, I got 25.82, which is lower than 28.3 in your paper.
I'm wondering if a pre-trained MT model was perhaps utilized to achieve the 28.3 score? Or is there anything else that I might have missed in the process? Any suggestions or guidance you can offer would be greatly appreciated.

Thank you in advanced!