vector-quantization

【效率与协作】Vector compression techniques: scalar quantization (int8, int4), binary quantization (bit vectors + Hamming), product quantization (PQ), optimized PQ, residual quantization. Covers rescoring workflow, storage math, accuracy tradeoffs, and Faiss/Qdrant/pgvector implementations. USE WHEN: user mentions "quantization", "int8 embeddings", "binary embedd…

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