Yes, this would be fast assuming the vectors are pre-normalized, obviating the n... | Hacker News

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queuebert 7 months ago | parent | context | favorite | on: Is Cosine-Similarity of Embeddings Really About Si...

Yes, this would be fast assuming the vectors are pre-normalized, obviating the need to repeatedly calculate two square roots.

SR2Z 7 months ago [–]

Even if the vectors are NOT normalized, you don't always need to normalize them.

Add in nd indices and the costs tend to be very small.

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