Comments (2)
zzbuzzard
commented on June 25, 2024
Hi! Not an author, but I've looked at this code too (eval_seq2seq). I believe MBR here computes the BLEU score between each pair of the S candidates (not looking at the reference!), and selects the candidate with the highest BLEU score to other candidates. The BLEU score is then computed between the chosen candidate and the actual reference. It is not cheating as the candidate is chosen without using the reference at all.
Lines 168-177 in eval_seq2seq.py show this fairly clearly - we select the 'best' candidates (by comparing them to one another - not the reference) and then compare these selected candidates to the reference.
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xiaotingxuan
commented on June 25, 2024
Oh,I got it. Thank you
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