论文阅读笔记——QLORA: Efficient Finetuning of Quantized LLMs
QLoRA论文4-bit标准浮点数量化常见的量化技术是最大绝对值量化：XInt8=round(127absmax(XFP32)XFP32)=round(cFP32,XFP32)式(1)X^{Int8}=round(\frac{127}{absmax(X^{FP32})}X^{FP32})=round(c^{FP32},X^{FP32})\qquad\qquad\text{式(1)}XInt8=ro