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We introduce Delta-Aware Quantization (DAQ), a data-free post-training quantization framework that preserves the knowledge acquired during post-training. Standard quantization objectives minimize reconstruction error but are agnostic to the…

机器学习 · 计算机科学 2026-03-25 Xiaoming Yu , Shize Tang , Guanghua Yu , Linchuan Xie , Song Liu , Jianchen Zhu , Feng Li

This report describes Tail-Aware HiFloat4, our submission to the low-bit text-to-video generation quantization challenge. Our method adapts the public ViDiT-Q post-training quantization pipeline to Wan2.2 under the HiFloat4 numerical…

人工智能 · 计算机科学 2026-05-27 Zhanfeng Feng , Shuai Guo , Xin Di , Long Peng , Yang Cao , Zhengjun Zha

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…

机器学习 · 计算机科学 2026-04-10 Shuaiting Li , Juncan Deng , Kedong Xu , Rongtao Deng , Hong Gu , Minghan Jiang , Haibin Shen , Kejie Huang

Quantization is a promising technique for reducing the bit-width of deep models to improve their runtime performance and storage efficiency, and thus becomes a fundamental step for deployment. In real-world scenarios, quantized models are…

机器学习 · 计算机科学 2024-04-09 Qun Li , Yuan Meng , Chen Tang , Jiacheng Jiang , Zhi Wang

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

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…

机器学习 · 计算机科学 2025-10-07 Tianao Zhang , Zhiteng Li , Xianglong Yan , Haotong Qin , Yong Guo , Yulun Zhang

Post-training quantization (PTQ) for vision transformers (ViTs) has garnered significant attention due to its efficiency in compressing models. However, existing methods typically overlook the relationship between a well-trained NN and the…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Peng Xia , Junbiao Pang , Tianyang Cai

In this paper, we address post-training quantization (PTQ) for large language models (LLMs) from an overlooked perspective: given a pre-trained high-precision LLM, the predominant sequential quantization framework treats different layers…

人工智能 · 计算机科学 2026-03-27 Shigeng Wang , Chao Li , Yangyuxuan Kang , Jiawei Fan , Zhonghong Ou , Anbang Yao

Post-training quantization (PTQ) has been gaining popularity for the deployment of deep neural networks on resource-limited devices since unlike quantization-aware training, neither a full training dataset nor end-to-end training is…

机器学习 · 计算机科学 2024-07-17 Jung Hyun Lee , Jeonghoon Kim , Se Jung Kwon , Dongsoo Lee

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

Deep Neural Networks(DNNs) have many parameters and activation data, and these both are expensive to implement. One method to reduce the size of the DNN is to quantize the pre-trained model by using a low-bit expression for weights and…

计算机视觉与模式识别 · 计算机科学 2020-11-26 Jun Nishikawa , Ryoji Ikegaya

Post-training quantization (PTQ) aims to preserve model-level behavior; however, most methods focus on individual linear layers. Even recent extensions, such as QEP and LoaQ, which mitigate error propagation or target specific submodules,…

机器学习 · 统计学 2025-12-02 Yuma Ichikawa , Yudai Fujimoto , Akira Sakai

To adopt convolutional neural networks (CNN) for a range of resource-constrained targets, it is necessary to compress the CNN models by performing quantization, whereby precision representation is converted to a lower bit representation. To…

机器学习 · 计算机科学 2022-02-22 Jemin Lee , Misun Yu , Yongin Kwon , Taeho Kim

Deploying quantized deep neural network (DNN) models with resource adaptation capabilities on ubiquitous Internet of Things (IoT) devices to provide high-quality AI services can leverage the benefits of compression and meet multi-scenario…

机器学习 · 计算机科学 2025-06-24 Jianhang Xie , Chuntao Ding , Xiaqing Li , Shenyuan Ren , Yidong Li , Zhichao Lu

Multimodal Large Language Models (MLLM) are increasingly deployed in domains where both reliability and efficiency are critical. However, current models remain overconfident, producing highly certain but incorrect answers. At the same time,…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Paul Jonas Kurz , Tobias Jan Wieczorek , Mohamed A. Abdelsalam , Rahaf Aljundi , Marcus Rohrbach

Neural network quantization enables the deployment of large models on resource-constrained devices. Current post-training quantization methods fall short in terms of accuracy for INT4 (or lower) but provide reasonable accuracy for INT8 (or…

Performing unsupervised domain adaptation on resource-constrained edge devices is challenging. Existing research typically adopts architecture optimization (e.g., designing slimmable networks) but requires expensive training costs.…

计算机视觉与模式识别 · 计算机科学 2024-09-16 Nanyang Du , Chen Tang , Yuxiao Jiang , Yuan Meng , Zhi Wang

The Diffusion model, a prevalent framework for image generation, encounters significant challenges in terms of broad applicability due to its extended inference times and substantial memory requirements. Efficient Post-training Quantization…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Yushi Huang , Ruihao Gong , Jing Liu , Tianlong Chen , Xianglong Liu

Diffusion Transformer (DiT) has now become the preferred choice for building image generation models due to its great generation capability. Unlike previous convolution-based UNet models, DiT is purely composed of a stack of transformer…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Ning Ding , Jing Han , Yuchuan Tian , Chao Xu , Kai Han , Yehui Tang

Recent advancements in unsupervised protein language models (ProteinLMs), like ESM-1b and ESM-2, have shown promise in different protein prediction tasks. However, these models face challenges due to their high computational demands,…

机器学习 · 计算机科学 2023-10-31 Shuang Peng , Fei Yang , Ning Sun , Sheng Chen , Yanfeng Jiang , Aimin Pan