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#artificial intelligence Preprint Oct 2026

AutoSFT: An Agentic System for Automated Data Research in Supervised Fine-Tuning

Language model agents increasingly automate post-training, but when given the full training stack they converge on supervised fine-tuning and spend most effort revising training data. Existing systems give the agent one kind of control, selecting rows from a fixed pool or calling a generator, whereas a human data engin...

Bing-Xiang He, Peng Sun, Shi-Hao Peng et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Diffusion Reward Models

Downstream RLHF experiments additionally show that using DRM as the training-time reward leads to improved policy performance, directly validating the practical benefit of diffusion-based reward modeling for RLHF training.

Xiang-Yang Wang, Bing-Xiang He, Ze-Yuan Liu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Rethinking On-Policy Distillation of Large Language Models II: One Training Example

On-policy distillation (OPD) combines student-generated rollouts with dense token-level supervision from a teacher. Existing work has mainly studied its algorithmic behavior, leaving the role of training data unclear. We examine this role at the data-minimal limit by training on a single query. One-shot OPD keeps impro...

Zi-Xuan Fu, Bing-Xiang He, Yu-Xin Zuo et al. · 24 citations · ⚡1

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