IVF-TQ: Streaming-Robust Approximate Nearest Neighbor Search via a Codebook-Free Residual Layer

In three linesIVF-TQ introduces an IVF index with codebook-free residual layer: fixed random rotation plus precomputed Lloyd-Max scalar quantization. Substantially reduces streaming degradation (Deep-10M: -0.80pp vs IVF-PQ -3.23pp). Code released.

Summary generated by Claude — human-verified