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Generalization abilities of well-trained large language models (LLMs) are known to scale predictably as a function of model size. In contrast to the existence of practical scaling laws governing pre-training, the quality of LLMs after…

机器学习 · 计算机科学 2024-12-09 Zifei Xu , Alexander Lan , Wanzin Yazar , Tristan Webb , Sayeh Sharify , Xin Wang

Quantization is an indispensable technique for serving Large Language Models (LLMs) and has recently found its way into LoRA fine-tuning. In this work we focus on the scenario where quantization and LoRA fine-tuning are applied together on…

计算与语言 · 计算机科学 2023-11-29 Yixiao Li , Yifan Yu , Chen Liang , Pengcheng He , Nikos Karampatziakis , Weizhu Chen , Tuo Zhao

Large language models (LLMs) show excellent performance but are compute- and memory-intensive. Quantization can reduce memory and accelerate inference. However, existing methods cannot maintain accuracy and hardware efficiency at the same…

计算与语言 · 计算机科学 2024-04-03 Guangxuan Xiao , Ji Lin , Mickael Seznec , Hao Wu , Julien Demouth , Song Han

Large transformer models have demonstrated remarkable success. Post-training quantization (PTQ), which requires only a small dataset for calibration and avoids end-to-end retraining, is a promising solution for compressing these large…

机器学习 · 计算机科学 2024-02-09 Zhikai Li , Xuewen Liu , Jing Zhang , Qingyi Gu

Recent advances in diffusion large language models (dLLMs) have introduced a promising alternative to autoregressive (AR) LLMs for natural language generation tasks, leveraging full attention and denoising-based decoding strategies.…

计算与语言 · 计算机科学 2026-03-17 Haokun Lin , Haobo Xu , Yichen Wu , Ziyu Guo , Renrui Zhang , Zhichao Lu , Ying Wei , Qingfu Zhang , Zhenan Sun

The increasing size and complexity of large language models (LLMs) have raised significant challenges in deployment efficiency, particularly under resource constraints. Post-training quantization (PTQ) has emerged as a practical solution by…

计算与语言 · 计算机科学 2026-04-07 Han Liu , Haotian Gao , Changya Li , Feng Zhang , Xiaotong Zhang , Wei Wang , Hong Yu

Reasoning models excel at complex tasks such as coding and mathematics, yet their inference is often slow and token-inefficient. To improve the inference efficiency, post-training quantization (PTQ) usually comes with the cost of large…

机器学习 · 计算机科学 2026-01-22 Keyu Lv , Manyi Zhang , Xiaobo Xia , Jingchen Ni , Shannan Yan , Xianzhi Yu , Lu Hou , Chun Yuan , Haoli Bai

Large language models (LLMs) excel at natural language tasks but face deployment challenges due to their growing size outpacing GPU memory advancements. Model quantization mitigates this issue by lowering weight and activation precision,…

计算与语言 · 计算机科学 2025-12-17 Shizhuo Mao , Song Chen , Yi Kang

Large Language Models (LLMs) have greatly pushed forward advancements in natural language processing, yet their high memory and computational demands hinder practical deployment. Binarization, as an effective compression technique, can…

计算机视觉与模式识别 · 计算机科学 2026-02-02 Zhiteng Li , Xianglong Yan , Tianao Zhang , Haotong Qin , Dong Xie , Jiang Tian , zhongchao shi , Linghe Kong , Yulun Zhang , Xiaokang Yang

Large Language Models (LLMs) have demonstrated remarkable capabilities but typically require extensive computational resources and memory for inference. Post-training quantization (PTQ) can effectively reduce these demands by storing…

机器学习 · 计算机科学 2026-01-27 Xi Zhang , Xiaolin Wu , Jiamang Wang , Weisi Lin

Network quantization is a powerful technique to compress convolutional neural networks. The quantization granularity determines how to share the scaling factors in weights, which affects the performance of network quantization. Most…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Zhihang Yuan , Yiqi Chen , Chenhao Xue , Chenguang Zhang , Qiankun Wang , Guangyu Sun

Post-training model quantization is a widely adopted technique for reducing the memory and computational costs of large language models (LLMs). However, most existing methods rely on uniform or heuristic bitwidth assignments, failing to…

机器学习 · 计算机科学 2025-06-09 Chao Zhang , Li Wang , Samson Lasaulce , Merouane Debbah

Serving Large Language Models (LLMs) is costly. However, post-training weight quantization can address this problem by both compressing their sizes for limited memory and saving bandwidth for acceleration. As not all weight dimensions are…

机器学习 · 计算机科学 2025-03-05 Yuezhou Hu , Weiyu Huang , Zichen Liang , Chang Chen , Jintao Zhang , Jun Zhu , Jianfei Chen

Large Language Models (LLMs) face significant deployment challenges due to their substantial memory requirements and the computational demands of auto-regressive text generation process. This paper addresses these challenges by focusing on…

机器学习 · 计算机科学 2024-02-21 Yuxuan Yue , Zhihang Yuan , Haojie Duanmu , Sifan Zhou , Jianlong Wu , Liqiang Nie

Layer-wise PTQ is a promising technique for compressing large language models (LLMs), due to its simplicity and effectiveness without requiring retraining. However, recent progress in this area is saturating, underscoring the need to…

机器学习 · 计算机科学 2026-01-14 Yamato Arai , Yuma Ichikawa

Traditional post-training quantization (PTQ) is considered an effective approach to reduce model size and accelerate inference of large-scale language models (LLMs). However, existing low-rank PTQ methods require costly fine-tuning to…

机器学习 · 计算机科学 2026-01-12 Hongyaoxing Gul , Lijuan Hu , Shuzi Niu , Fangfang Liu

Large language models (LLMs) are omnipresent, however their practical deployment is challenging due to their ever increasing computational and memory demands. Quantization is one of the most effective ways to make them more compute and…

机器学习 · 计算机科学 2024-09-04 Yelysei Bondarenko , Riccardo Del Chiaro , Markus Nagel

Post-Training Quantization (PTQ) is pivotal for deploying large language models (LLMs) within resource-limited settings by significantly reducing resource demands. However, existing PTQ strategies underperform at low bit levels < 3 bits due…

计算与语言 · 计算机科学 2025-01-31 Wanlong Liu , Yichen Xiao , Dingyi Zeng , Hongyang Zhao , Wenyu Chen , Malu Zhang

Post-Training Quantization (PTQ) compresses large language models to low bit-widths using a small calibration set, and its quality depends strongly on which samples are chosen. We identify a failure mode in which calibration samples fail to…

机器学习 · 计算机科学 2026-04-28 Ibne Farabi Shihab , Sanjeda Akter , Anuj Sharma

Recent advancements in large language models (LLMs) are propelling us toward artificial general intelligence with their remarkable emergent abilities and reasoning capabilities. However, the substantial computational and memory requirements…

机器学习 · 计算机科学 2024-10-10 Ruihao Gong , Yang Yong , Shiqiao Gu , Yushi Huang , Chengtao Lv , Yunchen Zhang , Xianglong Liu , Dacheng Tao