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Query Expansion & Rewriting
Using an LLM to rephrase or expand a user query into multiple variations before retrieval to improve document recall.
Why it exists
User queries are often brief or poorly phrased. Expanding them generates richer keywords and semantic angles.
How it works
An LLM takes 'fix error 404' and generates: 1) 'HTTP 404 missing route', 2) 'webpage not found troubleshooting'. Queries run in parallel.
Related terms
Where you'll use this
roadmap