Author

Kun Yuan

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Jul 2026

Cross-Tokenizer On-Policy Distillation via Byte-Prefix Marginalization

Open-weight language models from different families exhibit complementary capabilities, motivating their consolidation into a compact student through on-policy distillation (OPD). However, full-vocabulary OPD typically assumes a shared tokenizer, while existing cross-tokenizer methods may discard teacher probability ma...

Hao Wang, Kun Yuan, Wenlin Zhong et al. · arXiv.org · 5 citations · ⚡1

#machine learning Nov 2025

Row-stochastic matrices can provably outperform doubly stochastic matrices in decentralized learning

A weighted Hilbert-space framework is developed and sufficient conditions under which the row-stochastic design converges faster even with a smaller spectral gap are derived, by using a Rayleigh-quotient and Loewner-order eigenvalue comparison.

Bing Liu, Boao Kong, Limin Lu et al. · arXiv.org · 0 citations