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AI & Machine Learning · Advanced

FAISS

Facebook AI Similarity Search: Meta's open-source library for efficient vector similarity search, with GPU support.

Definition

FAISS implements flat, IVF, HNSW and product-quantization indexes and can run on NVIDIA GPUs. NVIDIA's cuVS library provides GPU-accelerated vector search (such as CAGRA) that integrates with FAISS and vector databases.

Exam tip

FAISS is a library, not a full database; it lacks built-in persistence, access control and metadata management.

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