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Deep learning has recently garnered significant interest in wireless communications due to its superior performance compared to traditional model-based algorithms. Deep convolutional neural networks (CNNs) have demonstrated notable…

Signal Processing · Electrical Eng. & Systems 2025-09-22 SaiKrishna Saketh Yellapragada , Esa Ollila , Mario Costa

Post-Training Quantization (PTQ) reduces the memory footprint and computational overhead of deep neural networks by converting full-precision (FP) values into quantized and compressed data types. While PTQ is more cost-efficient than…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Ali Zoljodi , Radu Timofte , Masoud Daneshtalab

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) is a promising solution for deploying large language models (LLMs) on resource-constrained devices. Early methods developed for small-scale networks, such as ResNet, rely on gradient-based optimization,…

Machine Learning · Computer Science 2025-06-09 Junhan Kim , Ho-young Kim , Eulrang Cho , Chungman Lee , Joonyoung Kim , Yongkweon Jeon

Post-Training Quantization (PTQ) has received significant attention because it requires only a small set of calibration data to quantize a full-precision model, which is more practical in real-world applications in which full access to a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Cuong Pham , Hoang Anh Dung , Cuong C. Nguyen , Trung Le , Dinh Phung , Gustavo Carneiro , Thanh-Toan Do

Large language models (LLMs) have revolutionized natural language processing, albeit at the cost of immense memory and computation requirements. Post-training quantization (PTQ) is becoming the de facto method to reduce the memory footprint…

Machine Learning · Computer Science 2024-10-28 Yuhang Li , Priyadarshini Panda

As Large Language Models (LLMs) become increasingly computationally complex, developing efficient deployment strategies, such as quantization, becomes crucial. State-of-the-art Post-training Quantization (PTQ) techniques often rely on…

Machine Learning · Computer Science 2025-01-17 Alireza Ghaffari , Sharareh Younesian , Boxing Chen , Vahid Partovi Nia , Masoud Asgharian

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…

Machine Learning · Computer Science 2026-04-28 Ibne Farabi Shihab , Sanjeda Akter , Anuj Sharma

Post-training quantization (PTQ) is a widely used method to compress large language models (LLMs) without fine-tuning. It typically sets quantization hyperparameters (e.g., scaling factors) based on current-layer activations. Although this…

Machine Learning · Computer Science 2026-02-04 Zheqi Lv , Zhenxuan Fan , Qi Tian , Wenqiao Zhang , Yueting Zhuang

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.…

Computation and Language · Computer Science 2026-03-17 Haokun Lin , Haobo Xu , Yichen Wu , Ziyu Guo , Renrui Zhang , Zhichao Lu , Ying Wei , Qingfu Zhang , Zhenan Sun

This paper introduces a post-training quantization~(PTQ) method achieving highly efficient Convolutional Neural Network~ (CNN) quantization with high performance. Previous PTQ methods usually reduce compression error via performing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Chen Lin , Zheyang Li , Bo Peng , Haoji Hu , Wenming Tan , Ye Ren , Shiliang Pu

Quantization is an effective technique to reduce memory footprint, inference latency, and power consumption of deep learning models. However, existing quantization methods suffer from accuracy degradation compared to full-precision (FP)…

Machine Learning · Computer Science 2022-10-14 Zheng Wang , Juncheng B Li , Shuhui Qu , Florian Metze , Emma Strubell

Large language models (LLMs) have wide applications in the field of natural language processing(NLP), such as GPT-4 and Llama. However, with the exponential growth of model parameter sizes, LLMs bring significant resource overheads. Low-bit…

Computation and Language · Computer Science 2025-02-27 Liangdong Liu , Zhitong Zheng , Cong Wang , Tianhuang Su , Zhenyu Yang

Large speech recognition models like Whisper-small achieve high accuracy but are difficult to deploy on edge devices due to their high computational demand. To this end, we present a unified, cross-library evaluation of post-training…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-22 Arthur Söhler , Julian Irigoyen , Andreas Søeborg Kirkedal

We study weight-only post-training quantization (PTQ), which quantizes the weights of a large language model (LLM) without retraining, using little or no calibration data. Weight-only PTQ is crucial for reducing the memory footprint and…

Machine Learning · Computer Science 2025-10-23 Deokjae Lee , Hyun Oh Song

Post-training quantization (PTQ) has emerged as an effective technique for compressing large models and accelerating inference without retraining. While PTQ has been extensively studied in large language models (LLMs), its application to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yufei Xue , Yushi Huang , Jiawei Shao , Lunjie Zhu , Chi Zhang , Xuelong Li , Jun Zhang

Post-training quantization (PTQ) has emerged as a practical approach to compress large neural networks, making them highly efficient for deployment. However, effectively reducing these models to their low-bit counterparts without…

Machine Learning · Computer Science 2024-10-22 Aozhong Zhang , Zi Yang , Naigang Wang , Yingyong Qi , Jack Xin , Xin Li , Penghang Yin

In this paper, we propose StableQuant, a novel adaptive post-training quantization (PTQ) algorithm for widely used speech foundation models (SFMs). While PTQ has been successfully employed for compressing large language models (LLMs) due to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-22 Yeona Hong , Hyewon Han , Woo-jin Chung , Hong-Goo Kang

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

Large Language Models (LLMs) are proficient in natural language processing tasks, but their deployment is often restricted by extensive parameter sizes and computational demands. This paper focuses on post-training quantization (PTQ) in…

Computation and Language · Computer Science 2024-07-19 Janghwan Lee , Minsoo Kim , Seungcheol Baek , Seok Joong Hwang , Wonyong Sung , Jungwook Choi