Merge pull request #100 from VProv/master

Add note about BPE-Dropout during training

README.md

@@ -93,6 +93,8 @@ On top of the basic BPE implementation, this repository supports:
   use the argument `--dropout 0.1` for `subword-nmt apply-bpe` to randomly drop out possible merges.
   Doing this on the training corpus can improve quality of the final system; at test time, use BPE without dropout.
   In order to obtain reproducible results, argument `--seed` can be used to set the random seed.
+
+  **Note:** In the original paper, the authors used BPE-Dropout on each new batch separately. You can copy the training corpus several times to get similar behavior to obtain multiple segmentations for the same sentence.
 
 - support for glossaries:
   use the argument `--glossaries` for `subword-nmt apply-bpe` to provide a list of words and/or regular expressions