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Retrieval & EmbeddingsMedium· Asymmetric Distance Computation· IVFADC
What does ADC stand for in IVFADC, and why is it asymme...
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See plansAsymmetric Distance Computation (ADC) optimizes the distance calculation by keeping the query vector in its original, high-precision form while comparing it against quantized database vectors. This approach is more efficient than Symmetric Distance Computation (SDC) because it requires only one lookup table per query rather than a table shared across all queries. It is particularly useful in production scenarios where the query itself may be a corpus vector.