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Diffusion models have shown remarkable performance in image synthesis by progressively estimating a smooth transition from a Gaussian distribution of noise to a real image. Unfortunately, their practical deployment is limited by slow…

机器学习 · 计算机科学 2026-03-03 Dung Anh Hoang , Cuong Pham anh Trung Le , Jianfei Cai , Thanh-Toan Do

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,…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Kuan Wang , Zhijian Liu , Yujun Lin , Ji Lin , Song Han

While post-training quantization receives popularity mostly due to its evasion in accessing the original complete training dataset, its poor performance also stems from scarce images. To alleviate this limitation, in this paper, we leverage…

计算机视觉与模式识别 · 计算机科学 2022-07-06 Yunshan Zhong , Mingbao Lin , Mengzhao Chen , Ke Li , Yunhang Shen , Fei Chao , Yongjian Wu , Rongrong Ji

To obtain lower inference latency and less memory footprint of deep neural networks, model quantization has been widely employed in deep model deployment, by converting the floating points to low-precision integers. However, previous…

计算机视觉与模式识别 · 计算机科学 2022-12-20 Yangcheng Gao , Zhao Zhang , Richang Hong , Haijun Zhang , Jicong Fan , Shuicheng Yan

Model quantization reduces neural network parameter precision to achieve compression, but often compromises accuracy. Existing post-training quantization (PTQ) methods employ iterative parameter updates to preserve accuracy under high…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Zekang Zheng , Haokun Li , Yaofo Chen , Mingkui Tan , Qing Du

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,…

计算机视觉与模式识别 · 计算机科学 2020-08-14 Kuan Wang , Zhijian Liu , Yujun Lin , Ji Lin , Song Han

Neural network quantization is an effective way to compress deep models and improve their execution latency and energy efficiency, so that they can be deployed on mobile or embedded devices. Existing quantization methods require original…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Shoukai Xu , Haokun Li , Bohan Zhuang , Jing Liu , Jiezhang Cao , Chuangrun Liang , Mingkui Tan

Post-training quantization (PTQ) is a neural network compression technique that converts a full-precision model into a quantized model using lower-precision data types. Although it can help reduce the size and computational cost of deep…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Jiawei Liu , Lin Niu , Zhihang Yuan , Dawei Yang , Xinggang Wang , Wenyu Liu

Quantization is a promising approach for reducing memory overhead and accelerating inference, especially in large pre-trained language model (PLM) scenarios. While having no access to original training data due to security and privacy…

计算与语言 · 计算机科学 2023-10-23 Miaoxi Zhu , Qihuang Zhong , Li Shen , Liang Ding , Juhua Liu , Bo Du , Dacheng Tao

In supervised image restoration tasks, one key issue is how to obtain the aligned high-quality (HQ) and low-quality (LQ) training image pairs. Unfortunately, such HQ-LQ training pairs are hard to capture in practice, and hard to synthesize…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Tao Yang , Peiran Ren , Xuansong xie , Lei Zhang

Overfitting to synthetic training pairs remains a critical challenge in image dehazing, leading to poor generalization capability to real-world scenarios. To address this issue, existing approaches utilize unpaired realistic data for…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Haoyou Deng , Zhiqiang Li , Feng Zhang , Qingbo Lu , Zisheng Cao , Yuanjie Shao , Shuhang Gu , Changxin Gao , Nong Sang

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

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…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Cuong Pham , Hoang Anh Dung , Cuong C. Nguyen , Trung Le , Dinh Phung , Gustavo Carneiro , Thanh-Toan Do

The distributed subgradient method (DSG) is a widely discussed algorithm to cope with large-scale distributed optimization problems in the arising machine learning applications. Most exisiting works on DSG focus on ideal communication…

信号处理 · 电气工程与系统科学 2022-08-24 Zhaoyue Xia , Jun Du , Yong Ren

Mixed-precision quantization mostly predetermines the model bit-width settings before actual training due to the non-differential bit-width sampling process, obtaining sub-optimal performance. Worse still, the conventional static…

人工智能 · 计算机科学 2023-02-10 Yingchun Wang , Jingcai Guo , Song Guo , Weizhan Zhang

Data-free quantization (DFQ) recovers the performance of quantized network (Q) without accessing the real data, but generates the fake sample via a generator (G) by learning from full-precision network (P) instead. However, such sample…

计算机视觉与模式识别 · 计算机科学 2023-02-21 Biao Qian , Yang Wang , Richang Hong , Meng Wang

Gradient quantization is an emerging technique in reducing communication costs in distributed learning. Existing gradient quantization algorithms often rely on engineering heuristics or empirical observations, lacking a systematic approach…

机器学习 · 计算机科学 2021-08-02 Guangfeng Yan , Shao-Lun Huang , Tian Lan , Linqi Song

Diffusion models have recently dominated image synthesis tasks. However, the iterative denoising process is expensive in computations at inference time, making diffusion models less practical for low-latency and scalable real-world…

计算机视觉与模式识别 · 计算机科学 2023-11-02 Yefei He , Luping Liu , Jing Liu , Weijia Wu , Hong Zhou , Bohan Zhuang

Neural network quantization enables the deployment of models on edge devices. An essential requirement for their hardware efficiency is that the quantizers are hardware-friendly: uniform, symmetric, and with power-of-two thresholds. To the…

计算机视觉与模式识别 · 计算机科学 2021-11-17 Hai Victor Habi , Reuven Peretz , Elad Cohen , Lior Dikstein , Oranit Dror , Idit Diamant , Roy H. Jennings , Arnon Netzer

State-of-the-art deep neural networks are trained with large amounts (millions or even billions) of data. The expensive computation and memory costs make it difficult to train them on limited hardware resources, especially for recent…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Daquan Zhou , Kai Wang , Jianyang Gu , Xiangyu Peng , Dongze Lian , Yifan Zhang , Yang You , Jiashi Feng