Author

Zhi-Xuan Liu

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Preprint Aug 2026

Scaling Model-Generated Distillation Data Can Make Latent Teacher Traits More Recoverable

Scaling model-generated data is usually viewed as improving distillation: more examples should increase coverage, reduce noise, and produce stronger students. We show a second effect: larger datasets can make subtle teacher-specific signals easier to detect in the trained student, even when examples are off-task and ne...

Zhichen Dong, Zhi-Xuan Liu, Yuanjiu Fan, et al. · 1 citation

#machine learning Preprint Sep 2026

Subliminal Learning as Trait-Direction Drift: A Mechanism and Targeted Control under SFT Distillation

Trait-direction drift is proposed and validated as a mechanism for subliminal learning: biased generation creates measurable preference gaps in teacher data, and student-recognizable gaps induce trait-aligned updates during supervised fine-tuning that accumulate into behavioral transfer.

Zhi-Xuan Liu, Zhichen Dong, Yuanjiu Fan, et al. · 0 citations

Conference Open access 2026

Adaptive Prompt Optimization for Open-Ended Tasks: Uncertainty Preference as a Secondary Signal

A semantic-entropy-based method, using task uncertainty to guide prompt optimization, which requires no training, works with black-box models, and integrates easily into existing prompt optimizers.

Shuyang Zhang, Zhixuan Liu, Zhichen Dong et al. · Annual Meeting of the Associ... · 2 citations