[9.0] Fix bbq quantization algorithm but for differently distributed components (#126778) #126794
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…ents (elastic#126778) We had a silly bug in quantizing vectors in bbq where we were scaling the initial quantile optimization parameters incorrectly given the vector component distribution. In distributions where this has a major impact, the recall results were abysmal and rendered the quantization technique useless. In modern, well distributed components, this change is almost a no-op.
benwtrent
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:Search Relevance/Vectors
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Backports the following commits to 9.0: