arxivcs.LGcs.CLcs.CV2026-06-25
Just how sure are you? Improving Verbalized Uncertainty Calibration in Medical VQA
Eren Senoglu, Federico Toschi, Nicolo Brunello, Andrea Sassella, Mark James Carman
Multimodal large language models (MLLMs) applied to Medical Visual Question Answering (VQA) tend to produce overconfident outputs regardless of actual correctness, and existing verbalized confidence calibration methods, developed primarily for text only LLMs, do not account for t…