An Updated Evaluation of Google Translate Accuracy

Milam Aiken


In 2011, a comprehensive evaluation of accuracy using 51 languages with Google Translate showed that many European languages had good results, but several Asian languages performed poorly. The online service has improved its accuracy over the intervening eight years, and a reevaluation using the same text as the original study shows a 34% improvement based upon BLEU scores. This new study shows that translations between English and German, Afrikaans, Portuguese, Spanish, Danish, Greek, Polish, Hungarian, Finnish, and Chinese tend to be the most accurate.

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