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Cosine vs Dot Product vs Euclidean: Which Similarity Metric Should You Use?
On normalized embeddings all three metrics rank identically, so pick dot product for speed; magnitude only matters with unnormalized vectors.
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On normalized embeddings all three metrics rank identically, so pick dot product for speed; magnitude only matters with unnormalized vectors.
ReadMoving a production cloud RAG pipeline on-device: the shape transfers, but index scale, embedder size, and re-ranking budgets do not.
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