Definition
The process of augmenting raw data chunks with structured context—such as summaries, entities, or temporal stamps—to enable precise pre-filtering and improve retrieval relevance in RAG pipelines. While it significantly boosts precision and enables hybrid search, it introduces trade-offs in the form of increased ingestion latency, higher storage overhead, and additional LLM costs during the indexing phase.
Not merely 'tagging'; it is the programmatic synthesis of auxiliary data to bridge the gap between unstructured embeddings and structured queries.
"Attaching GPS coordinates and a brief synopsis to the back of every page in an unindexed library to find information by both topic and physical origin."
- Hybrid Search(Prerequisite)
- Pre-filtering(Component)
- Chunking Strategy(Component)
- Small-to-Big Retrieval(Component)
Conceptual Overview
The process of augmenting raw data chunks with structured context—such as summaries, entities, or temporal stamps—to enable precise pre-filtering and improve retrieval relevance in RAG pipelines. While it significantly boosts precision and enables hybrid search, it introduces trade-offs in the form of increased ingestion latency, higher storage overhead, and additional LLM costs during the indexing phase.
Disambiguation
Not merely 'tagging'; it is the programmatic synthesis of auxiliary data to bridge the gap between unstructured embeddings and structured queries.
Visual Analog
Attaching GPS coordinates and a brief synopsis to the back of every page in an unindexed library to find information by both topic and physical origin.