#4267 Structural RAG
#4267 Structural RAG PageIndex: Reasoning-Based Vectorless RAG Framework https://youtu.be/H5jHCh588o4 #4267 Describe an alternative to embedding and indexing for RAG. Consider a plain text toc for topics within a document. While vector embeddings are the "gold standard" for RAG right now, they often feel like using a sledgehammer to crack a nut—especially for single, long documents where semantic search can lose the forest for the trees. An excellent alternative is Structural Metadata Navigation (or "Map-Guided Retrieval"). Instead of turning text into high-dimensional math, you treat the document like a library with a highly efficient librarian. The Concept: Structural Metadata Navigation In this approach, you use a Plain Text Table of Contents (TOC) as a high-level "map" for the LLM. Instead of searching for similar meaning , you search for relevant locations . How it Works The Mapmaker: You (or a lightweight LLM pass) extract a detailed TOC with hea...