41. Advanced RAG (Beyond the Basics)

Beyond Basic RAG

Basic RAG: embed documents, search by similarity, insert into prompt. Advanced RAG optimizes every step for production quality.

Basic:   Query → Vector Search → Top K → Prompt
Advanced: Query Rewrite → Hybrid Search → Rerank → Pack Context → Answer with Citations

Advanced Techniques

• Hybrid search: Combine keyword and vector search
• Metadata filtering: Access control and scoping
• Query rewriting: Improve retrieval with reformulated queries
• Context packing: Optimal chunk selection under token budget
• Answer provenance: Link answers to source documents

Where to go next

• 41.1 Hybrid search: keyword + vector
• 41.2 Metadata filtering and access control
• 41.3 Query rewriting and expansion
• 41.4 Context packing: selecting the best chunks under budget
• 41.5 Answer with provenance techniques