DCD: Domain-Oriented Design for Controlled Retrieval-Augmented Generation
Retrieval-Augmented Generation (RAG) is widely used to ground large language models in external knowledge sources. However, when applied to heterogeneous corpora and multi-step queries, Naive RAG pipelines often degrade in quality due to flat knowledge representations and the absence of explicit workflows. In this work, we introduce DCD (Domain-Collection-Document), a domain-oriented design to structure knowledge and control query processing in RAG systems without modifying the underlying language model. The proposed approach relies on a hierarchical decomposition of the information space and multi-stage routing based on structured model outputs, enabling progressive restriction of both r...
| Authors | Valerii Kovalskii, Nikita Belov, Nikita Miteyko et al. |
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| Primary category | cs.IR |
| Published | 8 April 2026 |
| Last updated at source | 11 June 2026 |
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