In some other cases, we obtained high precision but poor recall with one feature only, which is not a usefully result as well since most of the correct translations are still labeled as "Non-Translation".
when using both features, the precision is strongly improved up to 98% (English-Spanish or French-Spanish) with a high recall of about 90% for class T. We also achieved about 86%/75% precision/recall in the case of Chinese-English, even though they are very distant languages.