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Retrieval-augmented generation (RAG) · Advanced · 6 h

Measuring and improving retrieval

Labelled questions, hit rate and MRR, keyword versus dense versus hybrid, and what to tune first.

Why employers care: Most bad RAG answers are retrieval failures. Senior AI engineers measure retrieval before touching prompts.

In the roadmaps for: AI/ML Engineer, Forward Deployed Engineer

Lessons, in order

  1. Measure retrieval before you tune promptsA labelled question set, hit rate and MRR, and a surprising comparison of keyword, dense and hybrid search on the Kubernetes docs.4 min