IVF (Inverted File Index) is a classic ANN technique that partitions the vector space using a k-means-like clustering and, at query time, only scans the nearest few partitions. It was popularized by Facebook AI Research's Faiss library and became a favorite when memory is constrained. Combined with Product Quantization (IVF-PQ), it can compress gigabyte-scale indexes into a small RAM footprint; typically with lower recall than HNSW but a much lighter footprint. Most Vector Database providers offer it as an option alongside HNSW.
MEVZU N°124ISTANBULYEAR I — VOL. III
Glossary · Advanced · 2010
IVF — Inverted File Index
An ANN indexing technique that partitions the vector space into clusters to speed up search.
- EN — English term
- IVF (Inverted File Index)
- TR — Turkish term
- IVF — Ters Dosya İndeksi