English
Related papers

Related papers: ZeroQuant-V2: Exploring Post-training Quantization…

200 papers

Microscaling Floating-Point (MXFP) has emerged as a promising low-precision format for large language models (LLMs). Despite various post-training quantization (PTQ) algorithms being proposed, they mostly focus on integer quantization,…

Computation and Language · Computer Science 2026-01-15 Manyi Zhang , Ji-Fu Li , Zhongao Sun , Haoli Bai , Hui-Ling Zhen , Zhenhua Dong , Xianzhi Yu

Post Training Quantization (PTQ), a mainstream model compression technique, often leads to the paradoxical 'low error, high loss' phenomenon because it focuses solely on minimizing quantization error. The root cause lies in the Hessian…

Machine Learning · Computer Science 2026-01-30 Jinhao Zhang Yunquan Zhang , Zicheng yan , Boyang Zhang , Jun Sun , Daning Cheng

Post-training quantization (PTQ) has become a crucial tool for reducing the memory and compute costs of modern deep neural networks, including large language models (LLMs). Among PTQ algorithms, the OPTQ framework-also known as GPTQ-has…

Machine Learning · Computer Science 2026-04-13 Haoyu Zhang , Shihao Zhang , Ian Colbert , Rayan Saab

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

Vision-Language Models (VLMs) have enabled a variety of real-world applications. The large parameter size of VLMs brings large memory and computation overhead which poses significant challenges for deployment. Post-Training Quantization…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Shiyao Li , Yingchun Hu , Xuefei Ning , Xihui Liu , Ke Hong , Xiaotao Jia , Xiuhong Li , Yaqi Yan , Pei Ran , Guohao Dai , Shengen Yan , Huazhong Yang , Yu Wang

Post-training quantization (PTQ) is a popular method for compressing deep neural networks (DNNs) without modifying their original architecture or training procedures. Despite its effectiveness and convenience, the reliability of PTQ methods…

Machine Learning · Computer Science 2023-03-24 Zhihang Yuan , Jiawei Liu , Jiaxiang Wu , Dawei Yang , Qiang Wu , Guangyu Sun , Wenyu Liu , Xinggang Wang , Bingzhe Wu

Post-training quantization (PTQ) enables efficient deployment of large language models by mapping pretrained weights to low-bit formats without retraining, typically using a small calibration set to minimize a layer-wise calibration…

Machine Learning · Computer Science 2026-05-12 Seohyeon Cha , Huancheng Chen , Dongjun Kim , Haoran Zhang , Kevin Chan , Gustavo de Veciana , Haris Vikalo

We propose LLM-FP4 for quantizing both weights and activations in large language models (LLMs) down to 4-bit floating-point values, in a post-training manner. Existing post-training quantization (PTQ) solutions are primarily integer-based…

Computation and Language · Computer Science 2024-04-30 Shih-yang Liu , Zechun Liu , Xijie Huang , Pingcheng Dong , Kwang-Ting Cheng

While neural networks have advanced the frontiers in many applications, they often come at a high computational cost. Reducing the power and latency of neural network inference is key if we want to integrate modern networks into edge…

Machine Learning · Computer Science 2021-06-16 Markus Nagel , Marios Fournarakis , Rana Ali Amjad , Yelysei Bondarenko , Mart van Baalen , Tijmen Blankevoort

State-space models (SSMs) have recently gained attention in deep learning for their ability to efficiently model long-range dependencies, making them promising candidates for edge-AI applications. In this paper, we analyze the effects of…

Machine Learning · Computer Science 2025-06-17 Leo Zhao , Tristan Torchet , Melika Payvand , Laura Kriener , Filippo Moro

Foundation models have achieved remarkable results in medical image analysis. However, its large network architecture and high computational complexity significantly impact inference speed, limiting its application on terminal medical…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Yineng Chen , Peng Huang , Aozhong Zhang , Hui Guo , Penghang Yin , Shu Hu , Shao Lin , Xin Li , Tzu-Jen Kao , Balakrishnan Prabhakaran , MingChing Chang , Xin Wang

Methods based on weight compensation, which iteratively apply quantization and weight compensation to minimize the output error, have recently demonstrated remarkable success in quantizing Large Language Models (LLMs). The representative…

Machine Learning · Computer Science 2026-04-10 Shuaiting Li , Juncan Deng , Kedong Xu , Rongtao Deng , Hong Gu , Minghan Jiang , Haibin Shen , Kejie Huang

Post-training quantization (PTQ) has evolved as a prominent solution for compressing complex models, which advocates a small calibration dataset and avoids end-to-end retraining. However, most existing PTQ methods employ block-wise…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Changjun Li , Runqing Jiang , Zhuo Song , Pengpeng Yu , Ye Zhang , Yulan Guo

Diffusion large language models (dLLMs), which offer bidirectional context and flexible masked-denoising generation, are emerging as a compelling alternative to autoregressive (AR) LLMs. However, like AR LLMs, their model sizes continue to…

Machine Learning · Computer Science 2025-10-07 Tianao Zhang , Zhiteng Li , Xianglong Yan , Haotong Qin , Yong Guo , Yulun Zhang

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

Post-training weight-only quantization to 4 bits is widely used to reduce the memory and compute costs of large language model inference. Existing PTQ methods, such as AWQ and GPTQ, improve how weights are mapped onto a fixed 4-bit grid…

Machine Learning · Computer Science 2026-05-12 Beshr IslamBouli , David Jin

Post-training quantization (PTQ) reduces the memory footprint of LLMs by quantizing weights to low-precision datatypes. Since LLM inference is usually memory-bound, PTQ methods can improve inference throughput. Recent state-of-the-art PTQ…

Machine Learning · Computer Science 2025-06-19 Albert Tseng , Qingyao Sun , David Hou , Christopher De Sa

Efficient inference for object detection networks is a major challenge on edge devices. Post-Training Quantization (PTQ), which transforms a full-precision model into low bit-width directly, is an effective and convenient approach to reduce…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Lin Niu , Jiawei Liu , Zhihang Yuan , Dawei Yang , Xinggang Wang , Wenyu Liu

Large Language Models (LLMs) are widely used across many domains, but their scale makes deployment challenging. Post-Training Quantization (PTQ) reduces memory footprint without retraining by leveraging a small calibration set. Recent…

Machine Learning · Computer Science 2026-04-16 Jaemin Kim , Sungkyun Kim , Junyeol Lee , Jiwon Seo

Fine-tuning pre-trained diffusion models under limited budgets has gained great success. In particular, the recent advances that directly fine-tune the quantized weights using Low-rank Adaptation (LoRA) further reduces training costs.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Hang Guo , Yawei Li , Tao Dai , Shu-Tao Xia , Luca Benini