This article proposes RAG-EVO (Evolutionary, Self-Improving RAG Agent), an adaptive generation-enhanced retrieval architecture that incorporates heuristic introspection mechanisms, persistent vector memory and evolutionary learning through iterative logs. The technique was evaluated in a simulated scenario using real legal-epidemiological data and compared with approaches such as Self-RAG, HyDE, Multi-Query RAG, MMR, and ReAct. RAG-EVO showed superior performance in factual consistency and completeness, achieving a composite accuracy score of 92.6%. The architecture is particularly suitable for domains that require robustness in the accuracy of the answers generated through LLMs, traceability and continuous adaptation.

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RAG-EVO: Increasing the Reliability and Autonomy of LLMs via Iterative Recovery

  • Diego Rodrigues,
  • Daniela Mascarenhas de Queiroz Trevisan,
  • Sílvia Araújo,
  • David Nadler Prata

摘要

This article proposes RAG-EVO (Evolutionary, Self-Improving RAG Agent), an adaptive generation-enhanced retrieval architecture that incorporates heuristic introspection mechanisms, persistent vector memory and evolutionary learning through iterative logs. The technique was evaluated in a simulated scenario using real legal-epidemiological data and compared with approaches such as Self-RAG, HyDE, Multi-Query RAG, MMR, and ReAct. RAG-EVO showed superior performance in factual consistency and completeness, achieving a composite accuracy score of 92.6%. The architecture is particularly suitable for domains that require robustness in the accuracy of the answers generated through LLMs, traceability and continuous adaptation.