D-MOPD (Dynamic Domain ScheDuling for MOPD), a zero-overhead scheduler that repurposes the per-domain reverse-KL signal already produced during training to adapt the domain mixture online to adapt the domain mixture online.
Zechen Sun, Zhi-Wei Zhang, Fei Zhao et al.· 1 citation
On-policy distillation (OPD) accelerates post-training by providing dense token-level supervision from a frozen teacher on the student's own rollouts. Vanilla OPD applies this supervision uniformly across prompts, without checking whether the teacher is reliable for each prompt. Because reverse KL is mode-seeking, a co...
Zhi-Wei Zhang, Zechen Sun, Fei Zhao et al.· 5 citations
As the context window of Large Language Models (LLMs) continues to expand, the data required to effectively train and evaluate these capabilities remains underexplored. With existing research primarily focuses on architectural optimization, there is a need for a systematic, data-centric review. This survey bridges th...
Zechen Sun, Yu-Yang Sun, Zhao-yu Su et al.· Transactions of the Associat...· 0 citations
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