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Recently, quantization has been widely used for the compression and acceleration of large language models (LLMs). Due to the outliers in LLMs, it is crucial to flatten weights and activations to minimize quantization error with equally…

Computation and Language · Computer Science 2025-08-12 Yuxuan Sun , Ruikang Liu , Haoli Bai , Han Bao , Kang Zhao , Yuening Li , Jiaxin Hu , Xianzhi Yu , Lu Hou , Chun Yuan , Xin Jiang , Wulong Liu , Jun Yao

The burgeoning complexity and scale of 3D geometry models pose significant challenges for deployment on resource-constrained platforms. While Post-Training Quantization (PTQ) enables efficient inference without retraining, conventional…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Sicheng Pan , Chen Tang , Shuzhao Xie , Ke Yang , Weixiang Zhang , Jiawei Li , Bin Chen , Shu-Tao Xia , Zhi Wang

Large-scale language models (LLMs) have demonstrated impressive performance, but their deployment presents challenges due to their significant memory usage. This issue can be alleviated through quantization. In this paper, we identify that…

Computation and Language · Computer Science 2023-05-18 Zhihang Yuan , Lin Niu , Jiawei Liu , Wenyu Liu , Xinggang Wang , Yuzhang Shang , Guangyu Sun , Qiang Wu , Jiaxiang Wu , Bingzhe Wu

Large Language Models (LLMs) deliver strong performance but are difficult to deploy under tight memory and compute constraints. Low-bit post-training quantization (PTQ) is a promising direction; however, it typically relies on calibration…

Machine Learning · Computer Science 2026-02-09 Xinzhe Zheng , Zhen-Qun Yang , Zishan Liu , Haoran Xie , S. Joe Qin , Arlene Chen , Fangzhen Lin

Quantization has been an effective technology in ANN (approximate nearest neighbour) search due to its high accuracy and fast search speed. To meet the requirement of different applications, there is always a trade-off between retrieval…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Jingkuan Song , Xiaosu Zhu , Lianli Gao , Xin-Shun Xu , Wu Liu , Heng Tao Shen

Dynamic runtime latency and memory constraints necessitate flexible large language model (LLM) deployment, where an LLM can be inferred with various quantization precisions based on available computational resources. Recent work on such…

Vision Transformers (ViTs) are essential in computer vision but are computationally intensive, too. Model quantization, particularly to low bit-widths like 4-bit, aims to alleviate this difficulty, yet existing Post-Training Quantization…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Guang Liang , Xinyao Liu , Jianxin Wu

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…

Computation and Language · Computer Science 2024-04-03 Guangxuan Xiao , Ji Lin , Mickael Seznec , Hao Wu , Julien Demouth , Song Han

Although post-training quantization (PTQ) provides an efficient numerical compression scheme for deploying large language models (LLMs) on resource-constrained devices, the representativeness and universality of calibration data remain a…

Machine Learning · Computer Science 2026-01-19 Haiyang Xiao , Weiqing Li , Jinyue Guo , Guochao Jiang , Guohua Liu , Yuewei Zhang

Neural network quantization procedure is the necessary step for porting of neural networks to mobile devices. Quantization allows accelerating the inference, reducing memory consumption and model size. It can be performed without…

Machine Learning · Computer Science 2019-06-27 Alexander Goncharenko , Andrey Denisov , Sergey Alyamkin , Evgeny Terentev

Powerful large language models (LLMs) are increasingly expected to be deployed with lower computational costs, enabling their capabilities on resource-constrained devices. Post-training quantization (PTQ) has emerged as a star approach to…

Machine Learning · Computer Science 2025-02-20 Yuzhuang Xu , Shiyu Ji , Qingfu Zhu , Wanxiang Che

Recently years have witnessed a rapid development of large language models (LLMs). Despite the strong ability in many language-understanding tasks, the heavy computational burden largely restricts the application of LLMs especially when one…

Machine Learning · Computer Science 2023-10-10 Yuhui Xu , Lingxi Xie , Xiaotao Gu , Xin Chen , Heng Chang , Hengheng Zhang , Zhengsu Chen , Xiaopeng Zhang , Qi Tian

Post-training quantization (PTQ) has recently emerged as an effective tool for reducing the computational complexity and memory usage of a neural network by representing its weights and activations with lower precision. While this paradigm…

Machine Learning · Computer Science 2025-10-06 Logan Frank , Paul Ardis

High computational overhead is a troublesome problem for diffusion models. Recent studies have leveraged post-training quantization (PTQ) to compress diffusion models. However, most of them only focus on unconditional models, leaving the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Siao Tang , Xin Wang , Hong Chen , Chaoyu Guan , Zewen Wu , Yansong Tang , Wenwu Zhu

Large language models (LLMs) have revolutionized natural language processing tasks. However, their practical deployment is hindered by their immense memory and computation requirements. Although recent post-training quantization (PTQ)…

Machine Learning · Computer Science 2024-03-19 Wenqi Shao , Mengzhao Chen , Zhaoyang Zhang , Peng Xu , Lirui Zhao , Zhiqian Li , Kaipeng Zhang , Peng Gao , Yu Qiao , Ping Luo

Quantizing a floating-point neural network to its fixed-point representation is crucial for Learned Image Compression (LIC) because it improves decoding consistency for interoperability and reduces space-time complexity for implementation.…

Image and Video Processing · Electrical Eng. & Systems 2023-10-10 Junqi Shi , Ming Lu , Zhan Ma

Model quantization is a widely used technique to compress and accelerate deep neural network (DNN) inference. Emergent DNN hardware accelerators begin to support mixed precision (1-8 bits) to further improve the computation efficiency,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Kuan Wang , Zhijian Liu , Yujun Lin , Ji Lin , Song Han

Low-Rank Adaptation (LoRA) has become a popular technique for parameter-efficient fine-tuning of large language models (LLMs). In many real-world scenarios, multiple adapters are loaded simultaneously to enable LLM customization for…

Machine Learning · Computer Science 2025-11-10 Amir Reza Mirzaei , Yuqiao Wen , Yanshuai Cao , Lili Mou

The compression of deep learning models is of fundamental importance in deploying such models to edge devices. The selection of compression parameters can be automated to meet changes in the hardware platform and application using…

Machine Learning · Computer Science 2022-01-21 Nesma M. Rezk , Tomas Nordström , Dimitrios Stathis , Zain Ul-Abdin , Eren Erdal Aksoy , Ahmed Hemani

Large language models (LLMs) demonstrate remarkable performance but face substantial computational and memory challenges that limit their practical deployment. Quantization has emerged as a promising solution; however, its effectiveness is…

Machine Learning · Computer Science 2026-01-30 Zijian Ye , Wei Huang , Yifei Yu , Tianhe Ren , Zhongrui Wang , Xiaojuan Qi