Approximate Nearest Neighbor Search

Vector search is vital to generative AI applications because it can improve large language model (LLM) prompts, reducing hallucinations

KNN spanner precision Vector search is good for partitionable tasks like browsing personal images because each query contains few things

Spanner can now handle your vector search needs in a highly scalable and effective manner with to the addition of Approximate Nearest Neighbor Search capabilities

Spanner uses ScaNN, Google Research's vector similarity search algorithm, for Google and Google Cloud apps

The tree may have two or three layers depending on dataset size. Three-level tree hierarchical split of 10B+ vector datasets adds branch nodes

Distance functions make vector embeddings comparable. For KNN search, Spanner gives precise distance functions

Adding attributes to the WHERE clause filters Approximate Nearest Neighbour Search results

Vector search for funds with “emerging markets” in their names and query strategies like “balanced low risk socially responsible fund