Add script to compute chrF based on chrF++.py

scripts/compute.chrf.sh

@@ -0,0 +1,38 @@
+HYPO_SYS_PATH=$1
+REF_PATH=$2
+
+CHRF_BETA=${3:-3}
+CHRF_CHAR_ORDER=${4:-6}
+
+
+echo "Hypothesis file path is $HYPO_SYS_PATH"
+echo "Reference file path is $REF_PATH"
+echo "CHRF_BETA: $CHRF_BETA"
+echo "CHRF_CHAR_ORDER: $CHRF_CHAR_ORDER"
+
+
+sed 's/<unk>//g' $HYPO_SYS_PATH > ${HYPO_SYS_PATH}.replace_unk
+
+# Lowercase
+sed 's/.*/\L&/g' $HYPO_SYS_PATH.replace_unk > $HYPO_SYS_PATH.replace_unk.uncased
+sed 's/.*/\L&/g' $REF_PATH > $REF_PATH.uncased
+
+
+echo "[Cased chrF]"
+
+python ${PWD}/scripts/chrF++.py \
+--reference $REF_PATH \
+--hypothesis ${HYPO_SYS_PATH}.replace_unk \
+--beta $CHRF_BETA \
+--ncorder $CHRF_CHAR_ORDER \
+--nworder 0
+
+echo ""
+echo "[Uncased chrF]"
+
+python ${PWD}/scripts/chrF++.py \
+--reference $REF_PATH.uncased \
+--hypothesis ${HYPO_SYS_PATH}.replace_unk.uncased \
+--beta $CHRF_BETA \
+--ncorder $CHRF_CHAR_ORDER \
+--nworder 0