Author

Han Zhou

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Jul 2026

C-PTQ: Fisher-weighted Channel-wise Sensitivity for Post-training Quantization of MLLMs

C-PTQ is proposed, a unified channel-wise PTQ method that harmonizes task-specific loss perturbation and quantization error and achieves state-of-the-art performance without auxiliary modules like LoRA, thereby maintaining high efficiency.

Jia-Meng Li, Han Zhou, M. Blaschko · arXiv.org · 0 citations