Contextual Retrieval in Production RAG: Architecture, Prompt Caching Economics, Hybrid Fusion, and Reranking Pipelines
Contextual Retrieval in Production RAG: Architecture, Prompt Caching Economics, Hybrid Fusion, and Reranking Pipelines Standard Retrieval-Augmented Generation (RAG) architectures suffer from an inherent design flaw at the preprocessing stage: chunking destroys document hierarchy. When a system divides a large document corpus into fixed-size passages (such as 300 to 800 tokens) or applies semantic boundaries, the resulting chunks lose their surrounding narrative, parent headings, entity definiti
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