Learn the definition and calculation of BLEU, a metric for evaluating machine-translated text based on precision, and how it is used for text translation tasks.
Which evaluation metric below focuses on precision in matching generated output to the reference text and is used for text translation?
The correct answer is C. BLEU. BLEU (Bilingual Evaluation Understudy) is a metric for evaluating the quality of text which has been machine-translated from one natural language to another. BLEU focuses on precision in matching generated output to the reference text by counting the number of n-grams (sequences of words) that are common between them. BLEU is widely used for text translation, as it correlates highly with human judgments of quality and is easy to understand and compute.
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