arXiv Computation and Language By Gabriel de Jesus, S\'ergio Nunes

Labadain-MedQA: A Tetun Medical QA Dataset for Fine-Tuning and Evaluating Large Language Models

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The paper introduces Labadain-MedQA, a Tetun medical question‑answering dataset created by translating MedAlpaca’s Medical Flashcards and WikiDoc Patient Information into Tetun with Gemini 2.5 Flash, yielding 39,077 QA pairs. Translation quality was evaluated on 50 random pairs, showing human translations scored higher than LLM‑generated ones for medical accuracy and fluency (4.43/5 vs. 4.02/5, p < 0.001). Fine‑tuning Gemma and Llama models with parameter‑efficient methods on this dataset improved performance on Tetun‑translated USMLE multiple‑choice questions by up to 10.79% relative accuracy.

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