s3: The new RAG framework that trains search agents with minimal data
Published on: 2025-06-16 16:51:11
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Researchers at University of Illinois Urbana-Champaign have introduced s3, an open-source framework designed to build retrieval-augmented generation (RAG) systems more efficiently than current methods.
s3 can benefit developers creating real-world large language model (LLM) applications, as it simplifies and reduces the cost of creating retriever models within RAG architectures.
RAG retrieval
The effectiveness of any RAG system hinges on the quality of its retrieval component. In their paper, the researchers categorize the evolution of RAG approaches into three distinct phases.
“Classic RAG” systems rely on static retrieval methods with fixed queries, where retrieval quality is disconnected from the ultimate generation performance. These architectures struggle with queries requiring contextual or multi-hop reasoning. A subsequent phase, dubbed “Pre-RL-Zero
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