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Tian-Ao Zhang

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#artificial intelligence Preprint Sep 2026

JustQuant: You Don't Need Smoothing, SVD, or Rotation for 4-Bit Activation Quantization

Recent generative models have become increasingly powerful, but their inference cost continues to grow. Model quantization offers a promising way to compress these models and accelerate inference. However, at 4 bits, activation quantization is substantially more challenging than weight quantization. Recent post-trainin...

Kai-Cheng Yang, Kai-Sen Yang, Chun-Yu Liu et al. · 0 citations
Preprint Aug 2026

FOCUS: FP4 Optimization via Coupled-Relaxation and Dual-Granularity Scaling

FOCUS is proposed, a post-training quantization framework with end-to-end scale learning for FP4 Optimization via Coupled-Relaxation and Dual-Granularity Scaling, which relaxes the tight coupling between quantization and dequantization scales with a learnable full-precision coefficient, enabling more effective optimiza...

Xiang-Long Yan, Hong Liu, Cheng-Zhu Bao et al. · 1 citation

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