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# Adapted from https://github.com/facebookresearch/MIXER/blob/master/prepareData.sh | |
echo 'Cloning Moses github repository (for tokenization scripts)...' | |
git clone https://github.com/moses-smt/mosesdecoder.git | |
echo 'Cloning Subword NMT repository (for BPE pre-processing)...' | |
git clone https://github.com/rsennrich/subword-nmt.git | |
SCRIPTS=mosesdecoder/scripts | |
TOKENIZER=$SCRIPTS/tokenizer/tokenizer.perl | |
CLEAN=$SCRIPTS/training/clean-corpus-n.perl | |
NORM_PUNC=$SCRIPTS/tokenizer/normalize-punctuation.perl | |
REM_NON_PRINT_CHAR=$SCRIPTS/tokenizer/remove-non-printing-char.perl | |
BPEROOT=subword-nmt/subword_nmt | |
BPE_TOKENS=40000 | |
URLS=( | |
"http://statmt.org/wmt13/training-parallel-europarl-v7.tgz" | |
"http://statmt.org/wmt13/training-parallel-commoncrawl.tgz" | |
"http://statmt.org/wmt13/training-parallel-un.tgz" | |
"http://statmt.org/wmt14/training-parallel-nc-v9.tgz" | |
"http://statmt.org/wmt10/training-giga-fren.tar" | |
"http://statmt.org/wmt14/test-full.tgz" | |
) | |
FILES=( | |
"training-parallel-europarl-v7.tgz" | |
"training-parallel-commoncrawl.tgz" | |
"training-parallel-un.tgz" | |
"training-parallel-nc-v9.tgz" | |
"training-giga-fren.tar" | |
"test-full.tgz" | |
) | |
CORPORA=( | |
"training/europarl-v7.fr-en" | |
"commoncrawl.fr-en" | |
"un/undoc.2000.fr-en" | |
"training/news-commentary-v9.fr-en" | |
"giga-fren.release2.fixed" | |
) | |
if [ ! -d "$SCRIPTS" ]; then | |
echo "Please set SCRIPTS variable correctly to point to Moses scripts." | |
exit | |
fi | |
src=en | |
tgt=fr | |
lang=en-fr | |
prep=wmt14_en_fr | |
tmp=$prep/tmp | |
orig=orig | |
mkdir -p $orig $tmp $prep | |
cd $orig | |
for ((i=0;i<${#URLS[@]};++i)); do | |
file=${FILES[i]} | |
if [ -f $file ]; then | |
echo "$file already exists, skipping download" | |
else | |
url=${URLS[i]} | |
wget "$url" | |
if [ -f $file ]; then | |
echo "$url successfully downloaded." | |
else | |
echo "$url not successfully downloaded." | |
exit -1 | |
fi | |
if [ ${file: -4} == ".tgz" ]; then | |
tar zxvf $file | |
elif [ ${file: -4} == ".tar" ]; then | |
tar xvf $file | |
fi | |
fi | |
done | |
gunzip giga-fren.release2.fixed.*.gz | |
cd .. | |
echo "pre-processing train data..." | |
for l in $src $tgt; do | |
rm $tmp/train.tags.$lang.tok.$l | |
for f in "${CORPORA[@]}"; do | |
cat $orig/$f.$l | \ | |
perl $NORM_PUNC $l | \ | |
perl $REM_NON_PRINT_CHAR | \ | |
perl $TOKENIZER -threads 8 -a -l $l >> $tmp/train.tags.$lang.tok.$l | |
done | |
done | |
echo "pre-processing test data..." | |
for l in $src $tgt; do | |
if [ "$l" == "$src" ]; then | |
t="src" | |
else | |
t="ref" | |
fi | |
grep '<seg id' $orig/test-full/newstest2014-fren-$t.$l.sgm | \ | |
sed -e 's/<seg id="[0-9]*">\s*//g' | \ | |
sed -e 's/\s*<\/seg>\s*//g' | \ | |
sed -e "s/\β/\'/g" | \ | |
perl $TOKENIZER -threads 8 -a -l $l > $tmp/test.$l | |
echo "" | |
done | |
echo "splitting train and valid..." | |
for l in $src $tgt; do | |
awk '{if (NR%1333 == 0) print $0; }' $tmp/train.tags.$lang.tok.$l > $tmp/valid.$l | |
awk '{if (NR%1333 != 0) print $0; }' $tmp/train.tags.$lang.tok.$l > $tmp/train.$l | |
done | |
TRAIN=$tmp/train.fr-en | |
BPE_CODE=$prep/code | |
rm -f $TRAIN | |
for l in $src $tgt; do | |
cat $tmp/train.$l >> $TRAIN | |
done | |
echo "learn_bpe.py on ${TRAIN}..." | |
python $BPEROOT/learn_bpe.py -s $BPE_TOKENS < $TRAIN > $BPE_CODE | |
for L in $src $tgt; do | |
for f in train.$L valid.$L test.$L; do | |
echo "apply_bpe.py to ${f}..." | |
python $BPEROOT/apply_bpe.py -c $BPE_CODE < $tmp/$f > $tmp/bpe.$f | |
done | |
done | |
perl $CLEAN -ratio 1.5 $tmp/bpe.train $src $tgt $prep/train 1 250 | |
perl $CLEAN -ratio 1.5 $tmp/bpe.valid $src $tgt $prep/valid 1 250 | |
for L in $src $tgt; do | |
cp $tmp/bpe.test.$L $prep/test.$L | |
done | |