High-Throughput, Cost-Effective Billion-Scale Vector Search with a Single GPU [to appear in SIGMOD'26]

GPU-native approximate nearest neighbor search for Apple Silicon. Pure Swift + Metal — CAGRA-style graph index with full mutability, filtered search, streaming ingest, and multiple persistence modes.

OctopusANN

Temporal and category-optimised graph ANN index supporting “top‑k neighbours of q with category C in time window [t_start, t_end]” via category-aware Filtered‑Vamana and Historic Neighbour Tree.

A multilingual FAQ system using Sentence-Transformers + Pinecone semantic retrieval outperforming keyword-based baselines on low-latency, high-concurrency benchmarks.