Author

Shuang-Yong Song

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#machine learning Preprint Sep 2026

Quality Determines Direction, Length Shapes Magnitude: Length Control for Open-Ended Reinforcement Learning

Quality-Gated Length Advantage Shaping (QGLAS), which first computes advantages from quality rewards alone, then adds bounded bonuses only to shorter positive-advantage responses, leaving all other advantages unchanged, consistently achieves a stronger quality--length trade-off than representative baselines.

Zi-Jun Weng, Zhong-An Bi, Xuan-Ang Gao et al. · 0 citations

#natural language process... Preprint Aug 2026

Learning When Not to Listen: Selective Anti-Interference Pretraining for Language Models

Language models can over-condition on irrelevant preceding text: predictions already supported by local context may still change when distant, unrelated prefix tokens are perturbed. This interference is especially consequential in long, packed, or distractor-heavy contexts, where useful evidence and irrelevant spans co...

Jin-Chang Zhu, Hao-Lan He, Yi-Cheng Ding et al. · 0 citations