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#!/bin/bash
MOSES_HOME=/opt/moses
GIZA_HOME=${MOSES_HOME}/giza++-v1.0.7
IRSTLM=${MOSES_HOME}/irstlm-5.70.04
function tokenise() {
local LANG="$1"
local FILENAME="$2"
local WORKING_DIR="$3"
local BASENAME="`basename ${FILENAME}`"
if [ ! -f ${WORKING_DIR} ]; then
mkdir -p ${WORKING_DIR}
fi
NEW_BASENAME=`echo ${BASENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "tok."; } } }'`
TOKENISED_FILENAME="${WORKING_DIR}/${NEW_BASENAME}"
${MOSES_HOME}/scripts/tokenizer/tokenizer.perl -q -l ${LANG} < ${FILENAME} > ${TOKENISED_FILENAME}
}
function cleanup() {
local SRC_FILENAME="$1"
local TGT_FILENAME="$2"
local SEGMENT_LENGTH="$3"
SRC_CLEANUP_FILENAME=`echo ${SRC_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "clean."; } } }'`
TGT_CLEANUP_FILENAME=`echo ${TGT_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "clean."; } } }'`
truncate -s 0 ${SRC_CLEANUP_FILENAME}
truncate -s 0 ${TGT_CLEANUP_FILENAME}
paste -d'\n' ${SRC_FILENAME} ${TGT_FILENAME} | while read SRC_LINE && read TGT_LINE;
do
declare -i SRC_NO_WORDS=`echo "${SRC_LINE}" | wc -w`
declare -i TGT_NO_WORDS=`echo "${TGT_LINE}" | wc -w`
if [ ${SRC_NO_WORDS} -lt 20 -a ${TGT_NO_WORDS} -lt 20 ]; then
echo "${SRC_LINE}" >> ${SRC_CLEANUP_FILENAME}
echo "${TGT_LINE}" >> ${TGT_CLEANUP_FILENAME}
fi
done
}
function data_split() {
local SRC_FILENAME="$1"
local TGT_FILENAME="$2"
declare -i DEV_SIZE="$3"
declare -i EVAL_SIZE="$4"
SRC_TRAIN_FILENAME=`echo ${SRC_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "train."; } } }'`
TGT_TRAIN_FILENAME=`echo ${TGT_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "train."; } } }'`
SRC_DEVEL_FILENAME=`echo ${SRC_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "devel."; } } }'`
TGT_DEVEL_FILENAME=`echo ${TGT_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "devel."; } } }'`
SRC_EVAL_FILENAME=`echo ${SRC_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "eval."; } } }'`
TGT_EVAL_FILENAME=`echo ${TGT_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) { printf a[i]; if (i<length(a)) { printf "."; } if (i==length(a)-1) { printf "eval."; } } }'`
local ALL_FILES=(${SRC_TRAIN_FILENAME} ${TGT_TRAIN_FILENAME} ${SRC_DEVEL_FILENAME} ${TGT_DEVEL_FILENAME} ${SRC_EVAL_FILENAME} ${TGT_EVAL_FILENAME})
for FN in ${ALL_FILES}
do
truncate -s 0 ${FN}
done
declare -i DEV_EVAL_SIZE=$(($DEV_SIZE + $EVAL_SIZE))
declare -i LINE_CNT=1
paste -d'\n' ${SRC_FILENAME} ${TGT_FILENAME} | while read SRC_LINE && read TGT_LINE;
do
if [ ${LINE_CNT} -le ${DEV_EVAL_SIZE} ]; then
if [ ${LINE_CNT} -le ${DEV_SIZE} ]; then
echo "${SRC_LINE}" >> ${SRC_DEVEL_FILENAME}
echo "${TGT_LINE}" >> ${TGT_DEVEL_FILENAME}
else
echo "${SRC_LINE}" >> ${SRC_EVAL_FILENAME}
echo "${TGT_LINE}" >> ${TGT_EVAL_FILENAME}
fi
else
echo "${SRC_LINE}" >> ${SRC_TRAIN_FILENAME}
echo "${TGT_LINE}" >> ${TGT_TRAIN_FILENAME}
fi
LINE_CNT=$(($LINE_CNT + 1))
done
}
function translation_model_train() {
declare -l TT_SRC_LANG="$1"
declare -l TT_TGT_LANG="$2"
local SRC_FILENAME="`realpath $3`"
local TGT_FILENAME="`realpath $4`"
local ALIGNMENT_METHOD="$5"
local REORDERING_METHOD="$6"
local WORKING_DIR="$7"
declare -r SRC_CORPORA_NAME=`echo ${SRC_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i < length(a); i++) { printf a[i]; if (i < length(a) - 1) { printf "."; } } }'`
declare -r TGT_CORPORA_NAME=`echo ${TGT_FILENAME} | gawk '{split($0, a, "."); for(i = 1; i < length(a); i++) { printf a[i]; if (i < length(a) - 1) { printf "."; } } }'`
if [ "${SRC_CORPORA_NAME}" != "${TGT_CORPORA_NAME}" ]; then
echo "Arrrgh"
exit 1
fi
if [ -f ${WORKING_DIR} ]; then
rm -Rf ${WORKING_DIR} >& /dev/null
fi
mkdir -p ${WORKING_DIR}
WORKING_DIR=`realpath ${WORKING_DIR}`
declare -r DUMMY_FILE="${WORKING_DIR}/dummy.lm"
echo "dummy lm file" > ${DUMMY_FILE}
declare -r LOG_FILE="${WORKING_DIR}/log"
${MOSES_HOME}/scripts/training/train-model.perl -root-dir ${WORKING_DIR} -corpus ${SRC_CORPORA_NAME} -f ${TT_SRC_LANG} -e ${TT_TGT_LANG} -alignment ${ALIGNMENT_METHOD} -reordering ${REORDERING_METHOD} -lm 0:5:${DUMMY_FILE}:0 -external-bin-dir ${GIZA_HOME} 2> ${LOG_FILE}
MOSES_INI_FILE="${WORKING_DIR}/model/moses.ini"
}
function language_model_train() {
local FILENAME="$1"
local SMOOTHING_METHOD="$2"
local WORKING_DIR="$3"
if [ ! -f ${WORKING_DIR} ]; then
mkdir -p ${WORKING_DIR}
fi
declare -r BASENAME=`basename ${FILENAME}`
declare -r START_END_OUTPUT_FILENAME=${WORKING_DIR}/`echo ${BASENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) {if(i == 3) { printf "sb."; } else { printf a[i]; if (i < length(a) - 1) { printf "."; } } } }'`
declare -r LM_FILENAME=${WORKING_DIR}/`echo ${BASENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) {if(i == 3) { printf "lm."; } else { printf a[i]; if (i < length(a) - 1) { printf "."; } } } }'`
COMPILED_LM_FILENAME=${WORKING_DIR}/`echo ${BASENAME} | gawk '{split($0, a, "."); for(i = 1; i <= length(a); i++) {if(i == 3) { printf "arpa."; } else { printf a[i]; if (i < length(a) - 1) { printf "."; } } } }'`
export IRSTLM
${IRSTLM}/bin/add-start-end.sh < ${FILENAME} > ${START_END_OUTPUT_FILENAME}
declare -r TMP_DIR=`mktemp -dp /tmp`
${IRSTLM}/bin/build-lm.sh -i ${START_END_OUTPUT_FILENAME} -t ${TMP_DIR} -p -s ${SMOOTHING_METHOD} -o ${LM_FILENAME}
if [ -f ${TMP_DIR} ]; then
rm -Rf ${TMP_DIR} >& /dev/null
fi
${IRSTLM}/bin/compile-lm --text yes ${LM_FILENAME}.gz ${COMPILED_LM_FILENAME}
}
function mert() {
local MOSES_INI_FILENAME="`realpath $1`"
local COMPILED_LM_FILENAME="`realpath $2`"
local EVAL_FILENAME="$3"
declare -lr _SRC_LANG="$4"
declare -lr _TGT_LANG="$5"
declare -ri MODEL_ORDER="$6"
declare -ri MODEL_TYPE="$7"
local WORKING_DIR="$8"
declare -ri MAX_NO_ITERS="$9"
local INFILENAME=`realpath ${EVAL_FILENAME}`
INFILENAME=`echo ${INFILENAME} | gawk '{split($0, a, "."); for(i = 1; i < length(a); i++) { printf a[i]; if (i < length(a) - 1) { printf "."; } } }'`
if [ ! -f ${MOSES_INI_FILENAME} ]; then
echo "${MOSES_INI_FILENAME} does not exist."
exit 1
fi
if [ -f ${WORKING_DIR} ]; then
rm -Rf ${WORKING_DIR} >& /dev/null
fi
mkdir -p ${WORKING_DIR}
WORKING_DIR=`realpath ${WORKING_DIR}`
MERT_INI_FILENAME="${WORKING_DIR}/trained-moses.ini"
local SED_PROG="/\[lmodel-file\]/,/^[[:space:]]*\$/c\[lmodel-file\]\n${MODEL_TYPE} 0 ${MODEL_ORDER} ${COMPILED_LM_FILENAME}\n"
eval cat ${MOSES_INI_FILENAME} | sed "${SED_PROG}" > ${MERT_INI_FILENAME}
${MOSES_HOME}/scripts/training/mert-moses.pl --maximum-iterations ${MAX_NO_ITERS} --mertdir ${MOSES_HOME}/bin --working-dir ${WORKING_DIR} ${INFILENAME}.${_SRC_LANG} ${INFILENAME}.${_TGT_LANG} ${MOSES_HOME}/bin/moses ${MERT_INI_FILENAME} 2> ${WORKING_DIR}/log
}
if [ $# -lt 4 ]; then
echo "`basename $0` usage:"
echo " `basename $0` src_file tgt_file src_lang tgt_lang"
echo
exit 1
fi
declare -r SRC_LANG="$3"
declare -r TGT_LANG="$4"
# Tokenise
tokenise "${SRC_LANG}" "$1" "training/tokeniser"
declare -r SRC_TOKENISED_FILENAME="${TOKENISED_FILENAME}"
tokenise "${TGT_LANG}" "$2" "training/tokeniser"
declare -r TGT_TOKENISED_FILENAME="${TOKENISED_FILENAME}"
echo ${SRC_TOKENISED_FILENAME}
echo ${TGT_TOKENISED_FILENAME}
# Cleanup
cleanup "${SRC_TOKENISED_FILENAME}" "${TGT_TOKENISED_FILENAME}" 20
echo ${SRC_CLEANUP_FILENAME}
echo ${TGT_CLEANUP_FILENAME}
# Data split: src, tgt, dev size, eval size
data_split "${SRC_CLEANUP_FILENAME}" "${TGT_CLEANUP_FILENAME}" 1000 500
echo ${SRC_TRAIN_FILENAME}
echo ${TGT_TRAIN_FILENAME}
echo ${SRC_DEVEL_FILENAME}
echo ${TGT_DEVEL_FILENAME}
echo ${SRC_EVAL_FILENAME}
echo ${TGT_EVAL_FILENAME}
# Train the translation model
translation_model_train "${SRC_LANG}" "${TGT_LANG}" "${SRC_DEVEL_FILENAME}" "${TGT_DEVEL_FILENAME}" "grow-diag-final-and" "msd-bidirectional-fe" "training/model"
declare -r MOSES_TT_INI_FILENAME="${MOSES_INI_FILE}"
echo ${MOSES_TT_INI_FILENAME}
# Language model training
language_model_train "${TGT_TOKENISED_FILENAME}" "improved-kneser-ney" "training/lm"
echo ${COMPILED_LM_FILENAME}
# MERT
mert "${MOSES_TT_INI_FILENAME}" "${COMPILED_LM_FILENAME}" "${SRC_EVAL_FILENAME}" "${SRC_LANG}" "${TGT_LANG}" 3 9 "training/mert" 1
echo ${MERT_INI_FILENAME}
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