Bilibili Tech
Jan 17, 2025 · Backend Development
NeighborHash: An Enhanced Batch Query Architecture for Real‑time Recommendation Systems
NeighborHash is a distributed batch‑query architecture for real‑time recommendation systems that combines a cache‑line‑optimized hash table—featuring Lodger Relocation, bidirectional cache‑aware probing, and inline‑chaining—with an NVMe‑backed key‑value service, versioned updates, and asynchronous memory‑access chaining to achieve sub‑microsecond, high‑throughput top‑N retrieval.
AMACBatch QueryNVMe
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