finetune README improved

finetune/README.md

@@ -3,10 +3,76 @@
 
 Scripts for fine-tuning transformer models using some small in-domain data.
 
-* NOTE: this only works for SentencePiece models
+* NOTE: this only works for bilingual SentencePiece models
+
+
+## Requirements
+
+* marian-nmt
+* SentencePiece
+* Moses pre-processing scripts
+* OpusTools-perl (for extracting text from TMX)
+
+
+
+## Basic use:
+
+
+Make a fine-tune data set from newstest data (as part of the eval data in this package), for example for English-German:
+
+```
+make SRC=en TRG=de news-tune-data
+make SRC=en TRG=de all
+```
+
+
+Fine-tune with data from a given TMX file (in the direction of sorted language IDs taken from the TMX file):
+
+```
+make TMXFILE=file.tmx tmx-tune
+```
+
+Fine-tune with data from a given TMX file in reverse direction:
+
+```
+make TMXFILE=file.tmx REVERSE=1 tmx-tune
+```
+
+
+## Output
+
+The fine-tuned models are in subdirectories of the language pair and model name, for example
+
+```
+en-de/news/model
+```
+
+Test scores using the baseline and the fine-tuned models are in
+
+```
+en-de/news/test/*.eval
+```
+
+
+## Step-wise procedure
+
+
+The whole procedure consists of several steps that can be done in isolation:
+
+```
+#  make data .............. pre-process train/dev data
+#  make tune .............. fine-tune model
+#  make translate ......... translate test set with fine-tuned model
+#  make translate-baseline  translate test set with baseline model
+#  make eval .............. evaluate test set translation (fine-tuned)
+#  make eval-baseline ..... evaluate test set translation (baseline)
+#  make compare ........... put together source, reference translation and system output
+#  make compare-baseline .. same as compare but with baseline translation
+```
+
+
 
 
 ## TODO
 
-*  download base models from ObjectStorage
 *  make it work with multilingual models (need to adjust preprocess-scripts for those models)