Open access
2026
Dual-Group Exploration: Reinforcement Learning for Video Understanding in Multimodal Large Language Models
Reinforcement Learning (RL) has significantly enhanced reasoning in Large Language Models. However, applying state-of-the-art RL methods like Group Relative Policy Optimization (GRPO) to video-based Multimodal LLMs (MLLMs) remains sub-optimal. We identify two key exploration bottlenecks: (1) Advantage Vanishing : gener...
Qu-Cheng Peng, Rui-Yun Hou, Jing-Yi Zhang et al.
· Conference on Empirical Meth... · 0 citations