Nanvivi/SIFT1B-DiskANN

SIFT-1B Dataset & Disk Index The SIFT-1B (BigANN) dataset and pre-built disk-based ANN index. Built February 2026 on Intel Xeon 8462Y+ (Sapphire Rapids) with 800GB RAM. Build Parameters Parameter Value Dataset SIFT-1B (1,000,000,000 vectors, 128-dim, uint8) Graph R 128 (max degree) Build L 200 (search list size during construction) PQ chunks 32 (4 dimensions per sub-quantizer) Build time ~2 days Files Raw Data… See the full description on the dataset page: https://huggingface.co/datasets/Nanvivi/SIFT1B-DiskANN.