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Quantization is a promising approach for reducing the inference time and memory footprint of neural networks. However, most existing quantization methods require access to the original training dataset for retraining during quantization.…

计算机视觉与模式识别 · 计算机科学 2020-03-29 Yaohui Cai , Zhewei Yao , Zhen Dong , Amir Gholami , Michael W. Mahoney , Kurt Keutzer

In this work, we developed and tested 3 techniques for vector quantization (VQ) based model weight compression. To mitigate codebook collapse and enable end-to-end training, we adopted cosine similarity-based assignment. Building on ideas…

机器学习 · 计算机科学 2026-04-28 Terry Gou , Puneet Gupta

Diffusion transformers have demonstrated remarkable performance in visual generation tasks, such as generating realistic images or videos based on textual instructions. However, larger model sizes and multi-frame processing for video…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Tianchen Zhao , Tongcheng Fang , Haofeng Huang , Enshu Liu , Rui Wan , Widyadewi Soedarmadji , Shiyao Li , Zinan Lin , Guohao Dai , Shengen Yan , Huazhong Yang , Xuefei Ning , Yu Wang

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…

机器学习 · 计算机科学 2026-04-16 Jaemin Kim , Sungkyun Kim , Junyeol Lee , Jiwon Seo

Post-Training Quantization (PTQ) and Quantization-Aware Training (QAT) represent two mainstream model quantization approaches. However, PTQ often leads to unacceptable performance degradation in quantized models, while QAT imposes…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Xinhao Wang , Zhiwei Lin , Zhongyu Xia , Yongtao Wang

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…

计算机视觉与模式识别 · 计算机科学 2025-06-16 Guang Liang , Xinyao Liu , Jianxin Wu

Quantizing deep neural networks ,reducing the precision (bit-width) of their computations, can remarkably decrease memory usage and accelerate processing, making these models more suitable for large-scale medical imaging applications with…

计算机视觉与模式识别 · 计算机科学 2025-01-30 Chongyu Qu , Ritchie Zhao , Ye Yu , Bin Liu , Tianyuan Yao , Junchao Zhu , Bennett A. Landman , Yucheng Tang , Yuankai Huo

When considering post-training quantization, prior work has typically focused on developing a mixed precision scheme or learning the best way to partition a network for quantization. In our work, CPT-V, we look at a general way to improve…

计算机视觉与模式识别 · 计算机科学 2023-01-10 Natalia Frumkin , Dibakar Gope , Diana Marculescu

We present a framework for end-to-end joint quantization of Vision Transformers trained on ImageNet for the purpose of image classification. Unlike prior post-training or block-wise reconstruction methods, we jointly optimize over the…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Shile Li , Markus Karmann , Onay Urfalioglu

This study explores the quantisation-aware training (QAT) on time series Transformer models. We propose a novel adaptive quantisation scheme that dynamically selects between symmetric and asymmetric schemes during the QAT phase. Our…

机器学习 · 计算机科学 2023-10-05 Tianheng Ling , Chao Qian , Lukas Einhaus , Gregor Schiele

Quantization is a widely used compression technique for reducing the memory and computation costs of large pre-trained models. A key challenge in per-channel post-training quantization (PTQ) is selecting appropriate scaling factors to…

机器学习 · 计算机科学 2026-02-18 Shihao Zhang , Rayan Saab

Quantization using a small number of bits shows promise for reducing latency and memory usage in deep neural networks. However, most quantization methods cannot readily handle complicated functions such as exponential and square root, and…

图像与视频处理 · 电气工程与系统科学 2023-03-27 Yangyang Chang , Gerald E. Sobelman

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.…

图像与视频处理 · 电气工程与系统科学 2023-10-10 Junqi Shi , Ming Lu , Zhan Ma

The recent introduction of Diffusion Transformers (DiTs) has demonstrated exceptional capabilities in image generation by using a different backbone architecture, departing from traditional U-Nets and embracing the scalable nature of…

计算机视觉与模式识别 · 计算机科学 2024-10-18 Junyi Wu , Haoxuan Wang , Yuzhang Shang , Mubarak Shah , Yan Yan

We introduce a data-free quantization method for deep neural networks that does not require fine-tuning or hyperparameter selection. It achieves near-original model performance on common computer vision architectures and tasks. 8-bit…

机器学习 · 计算机科学 2019-11-26 Markus Nagel , Mart van Baalen , Tijmen Blankevoort , Max Welling

RWKV is a modern RNN architecture with comparable performance to Transformer, but still faces challenges when deployed to resource-constrained devices. Post Training Quantization (PTQ), which is a an essential technique to reduce model size…

机器学习 · 计算机科学 2025-05-08 Chen Xu , Yuxuan Yue , Zukang Xu , Xing Hu , Jiangyong Yu , Zhixuan Chen , Sifan Zhou , Zhihang Yuan , Dawei Yang

Model compression has gained a lot of attention due to its ability to reduce hardware resource requirements significantly while maintaining accuracy of DNNs. Model compression is especially useful for memory-intensive recurrent neural…

机器学习 · 计算机科学 2018-05-30 Dongsoo Lee , Byeongwook Kim

Post-training quantization (PTQ) is the go-to compression technique for large generative models, such as stable diffusion or large language models. PTQ methods commonly keep the softmax activation in higher precision as it has been shown to…

机器学习 · 计算机科学 2023-09-06 Nilesh Prasad Pandey , Marios Fournarakis , Chirag Patel , Markus Nagel

This work introduces NeuroQuant, a novel post-training quantization (PTQ) approach tailored to non-generalized Implicit Neural Representations for variable-rate Video Coding (INR-VC). Unlike existing methods that require extensive weight…

图像与视频处理 · 电气工程与系统科学 2025-02-18 Junqi Shi , Zhujia Chen , Hanfei Li , Qi Zhao , Ming Lu , Tong Chen , Zhan Ma

We propose a method of training quantization thresholds (TQT) for uniform symmetric quantizers using standard backpropagation and gradient descent. Contrary to prior work, we show that a careful analysis of the straight-through estimator…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Sambhav R. Jain , Albert Gural , Michael Wu , Chris H. Dick