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BLEU metric calculates wrong results for single hypothesis single reference pairs. #72

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Sophylax opened this issue Feb 10, 2022 · 0 comments · Fixed by #74
Closed

BLEU metric calculates wrong results for single hypothesis single reference pairs. #72

Sophylax opened this issue Feb 10, 2022 · 0 comments · Fixed by #74

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@Sophylax
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If you give the BLEU metric hypothesis/reference pairs that consist of a single hypothesis and a single reference, the results don't make sense. If you duplicate either or both of the elements, then it calucaltes the expected results.

Reproduction code can be found in the following gist:
https://gist.github.com/Sophylax/2f70729a8ecb669c98898c65f7aed679
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Fix Reference Structure for Basic BLEU calculation
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@Sophylax