Advanced Retrieval Patterns

Course overview

Advanced retrieval patterns for RAG: query rewriting and decomposition, HyDE, multi-query/multi-index retrieval, reranking and contextual compression. The unit explains these techniques and how they improve relevance and document coverage.

Covers query rewriting, decomposition and HyDE as practical ways to produce stronger retrieval queries.

Explains multi-query and multi-index setups to span diverse subdomains or heterogeneous corpora.

Describes reranking and contextual compression techniques to reduce noise and surface the most useful evidence for generation.