Author

Tan-Yu Chen

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#artificial intelligence Preprint Sep 2026

How Fragile Is Safety Alignment at Frontier Scale? A Single-Direction Attack on a 320B MoE

Directional ablation removes an aligned language model's ability to refuse by projecting a single"refusal direction"out of the weights that write the residual stream. It needs no gradient-based training and no optimization, only a few hundred contrastive prompts, which makes it the canonical white-box attack on open-we...

Yi Shi, Tan-Yu Chen, Kai Shen · 0 citations

Open access Sep 2026

Neural Network-Based Fixed-Time Control for Flexible Two-link Manipulators with State Constraints and Input Deadzone

Addressing the inherent low stiffness of flexible manipulators, existing control schemes often face an intrinsic contradiction where rapid convergence leads to increased vibration amplitudes, making it challenging to achieve high-precision trajectory tracking while effectively suppressing elastic vibrations. To tac...

He-Jia Gao, Tan-Yu Chen, Jiang-Xu Liu et al. · CAAI Artificial Intelligence... · 0 citations