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Intervention-Certified Amplification: A Validity Gate for $σ$-Weighted Post-Training

Chen, Leiyue et al.
arXiv (All) · Papers
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artificial-intelligencecomputation-and-languagemachine-learning
Hybrid post-training often mixes supervised fine-tuning (SFT) and reinforcement learning (RL), using training-side signals to set each sample's balance. Such signals characterize the anchor data and policy, but not whether the emphasized behavior helps in the target task and evaluation setting. This
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