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BM25 and Dense Retrieval Are Complementary for Portuguese Clinical Text: An Empirical Study of Hybrid RAG Across 500 Clinical Queries

2026-08-21

Abstract excerpt

<title>Abstract</title> <p>How should retrieval-augmented generation (RAG) systems be configured for clinical decision support in Portuguese? Despite growing deployment of LLM-based clinical tools in Latin America, no empirical study has evaluated hybrid retrieval strategies for Portuguese medical text. We present an evaluation of 500 clinical queries across 6 medical specialties against a production clinical cor...

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Literature Corpus work: 7f58a792-c2a9-5ddc-aa5d-3c7115e4af26
DOI: 10.21203/rs.3.rs-10757954/v1

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BM25 and Dense Retrieval Are Complementary for Portuguese Clinical Text: An Empirical Study of Hybrid RAG Across 500 Clinical QueriesDOI 10.21203/rs.3.rs-10757954/v1Read

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