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Level 2 · Intermediate Smarter Retrieval

Goal: move beyond plain top-k vector search — combine dense and keyword retrieval, rerank results, rewrite queries, handle tables and messy real-world documents, and learn what the popular frameworks actually do under the hood.

Modules

  1. Keyword Search & BM25
  2. Hybrid Search (Dense + Sparse)
  3. Reranking with Cross-Encoders
  4. Query Rewriting & Expansion
  5. Metadata Design & Filtered Retrieval
  6. Structured & Table RAG
  7. Multi-Format Ingestion (PDF/HTML/Docs)
  8. RAG with LangChain
  9. RAG with LlamaIndex
  10. Project — Hybrid Search Documentation Assistant

Coming soon

Full lesson content for this level is being written next. Start with Level 1 · Entry, which is complete.