Computer Science

RAG & embeddings

Retrieval-augmented generation — what embeddings really are, what a vector DB does, and how retrieval actually fails.

7 lessons~110 min totalFirst principles
What you'll learn
  • Build a working mental model of retrieval-augmented generation
  • Reason about embedding quality and retrieval failure modes
  • Know when RAG is the right tool — and when it is not
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