Recall@K / hit rate

Appears in 2 tutorials

Was a relevant chunk in the top K retrieved; the most important retrieval metric.

As used in Retrieval-Augmented Generation (RAG) →

Was a relevant chunk in the top K retrieved; the most important retrieval metric.

Quality measure: fraction of the true top-k neighbors your index actually returned. (Also used in the IR sense: fraction of all relevant docs retrieved.)

Retrieval-Augmented Generation (RAG) → Vector Databases →