Vector Index

This chapter introduces the indexes supported in Hippo. Please kindly check the table listed below. Hippo supports building multiple vector indexes on the same vector field.

Indexes	Types	Application Scenarios
FLAT / BIN_FLAT		Small datasets Requires 100% recall rate
IVF_FLAT / BIN_IVF	Quantization-based Index	High-performance query Recall rate as high as possible
IVF_SQ	Quantization-based Index	High-performance query Limited memory resources Higher recall rate
IVF_PQ	Quantization-based Index	Ultra high-performance query Limited memory resources Lower recall rate than IVF_SQ
IVF_PQ_FS	Quantization-based Index	Ultra high-performance query Limited memory resources Lower recall rate than IVF_SQ
HNSW / BIN_HNSW	Graph-based Index	Ultra high-performance query Large memory resources Recall rate as high as possible

Table 8 Vector Index Supported in Hippo