def bleu_score()

in utils/compute_score.py [0:0]

• 8 lines of code
• 1 McCabe index (conditional complexity)

def bleu_score(reference, candidate):
    bleu = BLEU()
    bleu_score = bleu.corpus_score(candidate, [reference])
    bleu_1 = bleu_score.precisions[0]
    bleu_4 = bleu_score.score
    print("BLEU-1:", bleu_1)
    print("BLEU-4:", bleu_4)
    return bleu_1, bleu_4