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Guan-Nan Qu

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#artificial intelligence Preprint Sep 2026

TRAP: Understanding and Mitigating Privacy Memorization in Language Models

TRAP, a one-sided penalty on tokenwise TRA that acts only where the target model pulls ahead of its reference, brings memorization near the level of an untrained model at little utility cost, where generic regularizers barely move and differential privacy gives up most of what fine-tuning bought.

Muhammed Ustaomeroglu, Zi-Yue Xu, Han-Shen Xiao et al. · 0 citations
#machine learning Preprint Aug 2026

Activation-Keyed Momentum: An Anisotropic Momentum Update via the Delta Rule

Activation-Keyed Momentum (AK-Momentum), which builds direction-awareness into the momentum update rule, is proposed, and it is proved that it is a valid momentum, that it applies the input-side curvature correction without matrix inversion, and that it clears stale directions faster than EMA under both a fixed and a d...

E. Hong, Guan-Nan Qu · 0 citations

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