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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…

Machine Learning · Computer Science 2018-05-30 Dongsoo Lee , Byeongwook Kim

Quantization is of significance for compressing the over-parameterized deep neural models and deploying them on resource-limited devices. Fixed-precision quantization suffers from performance drop due to the limited numerical representation…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Chen Tang , Yuan Meng , Jiacheng Jiang , Shuzhao Xie , Rongwei Lu , Xinzhu Ma , Zhi Wang , Wenwu Zhu

With the commercialization of large language models (LLMs), weight-activation quantization has emerged to compress and accelerate LLMs, achieving high throughput while reducing inference costs. However, existing post-training quantization…

Machine Learning · Computer Science 2025-02-11 Jung Hyun Lee , Jeonghoon Kim , June Yong Yang , Se Jung Kwon , Eunho Yang , Kang Min Yoo , Dongsoo Lee

Diffusion models have achieved great success in image generation tasks. However, the lengthy denoising process and complex neural networks hinder their low-latency applications in real-world scenarios. Quantization can effectively reduce…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Xuewen Liu , Zhikai Li , Junrui Xiao , Mengjuan Chen , Jianquan Li , Qingyi Gu

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

Quantization is a key method for deploying deep neural networks on edge devices with limited memory and computation resources. Recent improvements in Post-Training Quantization (PTQ) methods were achieved by an additional local optimization…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Ofir Gordon , Elad Cohen , Hai Victor Habi , Arnon Netzer

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

Diffusion models achieve high-quality image generation but face deployment challenges due to their high computational requirements. Although 8-bit outlier-aware post-training quantization (PTQ) matches full-precision performance, extending…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Donghoon Kim , Dongyoung Lee , Ik Joon Chang , Sung-Ho Bae

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…

Computation and Language · Computer Science 2025-01-31 Wanlong Liu , Yichen Xiao , Dingyi Zeng , Hongyang Zhao , Wenyu Chen , Malu Zhang

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…

Machine Learning · Computer Science 2026-01-12 Hongyaoxing Gul , Lijuan Hu , Shuzi Niu , Fangfang Liu

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…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Chongyu Qu , Ritchie Zhao , Ye Yu , Bin Liu , Tianyuan Yao , Junchao Zhu , Bennett A. Landman , Yucheng Tang , Yuankai Huo

Post-training quantization (PTQ) is a powerful technique for model compression, reducing the numerical precision in neural networks without additional training overhead. Recent works have investigated adopting 8-bit floating-point…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Shivam Aggarwal , Hans Jakob Damsgaard , Alessandro Pappalardo , Giuseppe Franco , Thomas B. Preußer , Michaela Blott , Tulika Mitra

It is customary to deploy uniform scalar quantization in the end-to-end optimized Neural image compression methods, instead of more powerful vector quantization, due to the high complexity of the latter. Lattice vector quantization (LVQ),…

Image and Video Processing · Electrical Eng. & Systems 2024-11-26 Xi Zhang , Xiaolin Wu

Large Language Models (LLMs) deliver strong performance across a wide range of NLP tasks, but their massive sizes hinder deployment on resource-constrained devices. To reduce their computational and memory burden, various compression…

Machine Learning · Computer Science 2026-05-18 Dung Anh Hoang , Cuong Pham , Cuong Nguyen , Trung le , Jianfei Cai , Thanh-Toan Do

Recently, video diffusion models (VDMs) have garnered significant attention due to their notable advancements in generating coherent and realistic video content. However, processing multiple frame features concurrently, coupled with the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Shilong Tian , Hong Chen , Chengtao Lv , Yu Liu , Jinyang Guo , Xianglong Liu , Shengxi Li , Hao Yang , Tao Xie

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…

Machine Learning · Computer Science 2024-02-09 Zhikai Li , Xuewen Liu , Jing Zhang , Qingyi Gu

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

Diffusion Models (DMs) utilize an iterative denoising process to transform random noise into synthetic data. Initally proposed with a UNet structure, DMs excel at producing images that are virtually indistinguishable with or without…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Yuewei Yang , Jialiang Wang , Xiaoliang Dai , Peizhao Zhang , Hongbo Zhang

Learned image compression (LIC) has reached the traditional hand-crafted methods such as JPEG2000 and BPG in terms of the coding gain. However, the large model size of the network prohibits the usage of LIC on resource-limited embedded…

Image and Video Processing · Electrical Eng. & Systems 2020-07-10 Heming Sun , Zhengxue Cheng , Masaru Takeuchi , Jiro Katto

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