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arXiv cs.LG AI Research Apr 23

Rethinking Reinforcement Fine-Tuning in LVLM: Convergence, Reward Decomposition, and Generalization

★★★★★ significance 3/5

This paper introduces the Tool-Augmented Markov Decision Process (TA-MDP) to theoretically explain how reinforcement fine-tuning works for large vision-language models. It provides mathematical proofs regarding the convergence of Group Relative Policy Optimization (GRPO) and the effectiveness of reward decomposition in multi-step reasoning tasks.

Why it matters Establishing theoretical frameworks for tool-augmented reinforcement learning is critical for scaling the reliability and reasoning capabilities of vision-language models.
Read the original at arXiv cs.LG

Tags

#lvlm #reinforcement learning #grpo #mathematical modeling #agentic capabilities

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