Zongben Xu — Papers on Cortexa

arxivcs.CV2026-07-23

Flash EQ-Linear: Accelerating Equivariant Linear Layers via Group-wise Discrete Fourier Transform

Zhongchen Zhao, Jixin Wang, Qi Xie, Hui Lin, Lei Zhang, Deyu Meng, et al.

Equivariant networks embed geometric symmetries as structural priors through weight sharing, achieving remarkable parameter efficiency across vision tasks. However, this parameter efficiency does not translate into compute efficiency: existing implementations unroll the structure…

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arxivcs.LG2026-06-28

BaRA: Bayesian Adaptive Rank Allocation for Parameter-Efficient Fine-Tuning

Zhibin Duan, Yuhong Wang, Jiahong Fu, Zongsheng Yue, Bo Chen, Zongben Xu

While Low-rank adaptation (LoRA) enables highly efficient fine-tuning by constraining task-specific updates to fixed low-rank subspaces, this rigid design limits representational flexibility and often results in overconfident predictions and miscalibrated uncertainty, especially…

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