What is Retrieval Evaluation?
AI EngineeringLast updated:
Measuring the quality of document retrieval in RAG systems using metrics like recall, precision, and MRR.
Retrieval evaluation assesses whether the right documents are retrieved before the LLM generates a response. Key metrics include recall@k, precision@k, mean reciprocal rank, and NDCG. Poor retrieval quality is the most common cause of RAG failures.