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DynaKRAG: A unified framework for learnable evidence control in multi-hop RAG

Researchers propose DynaKRAG, a framework that learns a state-conditioned policy to dynamically choose among evidence operations (retrieval, reformulation, critique, sufficiency checking) in multi-hop retrieval-augmented generation. This moves beyond fixed pipelines, potentially improving accuracy and flexibility in complex QA tasks.

0 engagement·1 source·Tue, Jul 7, 2026, 05:09 PM
The paper introduces DynaKRAG, which addresses the limitation of existing multi-hop RAG methods that rely on method-specific pipelines or predefined control topologies. Instead, DynaKRAG learns a shared policy that selects from currently valid evidence operations based on the state. This allows adaptive handling of missing facts, bridge entities, query defects, or sufficient support. The framework is designed to unify operations like iterative retrieval, query reformulation, evidence critique, and sufficiency judging under a learnable controller.

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DynaKRAG(tool)multi-hop RAG(concept)multi-hop retrieval-augmented generation(concept)

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