Jun 30, 2026
RAG Query Transformation: HyDE, Step-Back Prompting, and Sub-Query Decomposition
When a fintech client's RAG chatbot kept returning irrelevant results for perfectly reasonable user questions, we traced the root cause not to poor chunking or weak embeddings — but to the queries themselves. This post breaks down three query transformation techniques we now apply in production: HyDE, step-back prompting, and sub-query decomposition.
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