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GFT: From Imitation to Reward Fine-Tuning with Unbiased Group Advantages and Dynamic Coefficient Rectification

ArXiv CS.AI1d ago
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A new training method called GFT bridges supervised fine-tuning and reinforcement learning by interpreting imitation learning as a special case of policy gradient optimization. This approach addresses key challenges in combining efficient knowledge injection with robust generalization in large language models, potentially improving how AI systems are trained and refined.

Researchers unify language model training by reframing imitation learning as reward optimization.

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