@INPROCEEDINGS{11331377, author={Xu, Shoukai and Zeng, Runhao and Zhang, Zhiyang and Huang, Hao and Zheng, Qingfang and Lan, Xiangyuan and Wang, Yaowei and Tan, Mingkui}, booktitle={2025 IEEE International Conference on Cloud Computing Technology and Science (CloudCom)}, title={QER: Quantized Low-Rank Error Reconstructor for LLM Low-Bitwidth Quantization}, year={2025}, volume={}, number={}, pages={1-8}, keywords={Training;Adaptation models;Cloud computing;Quantization (signal);Accuracy;Computational modeling;Large language models;Scalability;Merging;Error correction;Large language model;efficient computing;quantization-aware training;error correction}, doi={10.1109/CloudCom67567.2025.11331377}}