English Persian translator

[Michelanjelo]

Thanks much for making this machine translation work openly available.
We have used the same config.yaml file as the one used in argos-train in order to train a model for English-Persian translation. After 30,000 epochs, the accuracy reaches 75 percent (as per OpenNMT logs), but when testing the model using onmt_translate, we get an accuracy of 30 percent (many words are translated as unknown). Here is the content of config.yaml file
https://github.com/argosopentech/argos-train/blob/master/config.yml