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multimodal reinforcement learning 1policy alignment 1reward shaping 1visual grounding 1visual intervention 1

From the 1 of 11 linked papers with an AI index.

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20242026
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cs.LG2025

MedGround-R1: Advancing Medical Image Grounding via Spatial-Semantic Rewarded Group Relative Policy Optimization

Huihui Xu, Yuanpeng Nie, Hualiang Wang +9

Medical Image Grounding (MIG), which involves localizing specific regions in medical images based on textual descriptions, requires models to not only perceive regions but also ded…