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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…

机器学习 · 计算机科学 2025-01-17 Alireza Ghaffari , Sharareh Younesian , Boxing Chen , Vahid Partovi Nia , Masoud Asgharian

Today, large language models have demonstrated their strengths in various tasks ranging from reasoning, code generation, and complex problem solving. However, this advancement comes with a high computational cost and memory requirements,…

机器学习 · 计算机科学 2026-03-26 Meriem Bouzouad , Yuan-Hao Chang , Jalil Boukhobza

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

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

Due to highly constrained computing power and memory, deploying 3D lidar-based detectors on edge devices equipped in autonomous vehicles and robots poses a crucial challenge. Being a convenient and straightforward model compression…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Sifan Zhou , Liang Li , Xinyu Zhang , Bo Zhang , Shipeng Bai , Miao Sun , Ziyu Zhao , Xiaobo Lu , Xiangxiang Chu

Post-training quantization (PTQ) methods for large language models rely on heuristics that implicitly estimate which weight channels most strongly influence model behavior. Two dominant paradigms have emerged: activation-aware methods such…

机器学习 · 计算机科学 2026-01-21 Bruce Changlong Xu

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…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Yufei Xue , Yushi Huang , Jiawei Shao , Lunjie Zhu , Chi Zhang , Xuelong Li , Jun Zhang

Post-training quantization (PTQ) enables efficient deployment of large language models by mapping pretrained weights to low-bit formats without retraining, typically using a small calibration set to minimize a layer-wise calibration…

机器学习 · 计算机科学 2026-05-12 Seohyeon Cha , Huancheng Chen , Dongjun Kim , Haoran Zhang , Kevin Chan , Gustavo de Veciana , Haris Vikalo

Layer-wise quantization is a key technique for efficiently compressing large models without expensive retraining. Previous methods typically quantize the weights of each layer by "uniformly" optimizing the layer reconstruction loss across…

机器学习 · 计算机科学 2025-03-04 Yi-Lin Sung , Prateek Yadav , Jialu Li , Jaehong Yoon , Mohit Bansal

Quantization is critical for efficiently deploying large language models (LLMs). Yet conventional methods remain hardware-agnostic, limited to bit-width constraints, and do not account for intrinsic circuit characteristics such as the…

硬件体系结构 · 计算机科学 2025-11-18 Rohan Juneja , Shivam Aggarwal , Safeen Huda , Tulika Mitra , Li-Shiuan Peh

Large Language Models (LLMs) face significant deployment challenges due to their substantial resource requirements. While low-bit quantized weights can reduce memory usage and improve inference efficiency, current hardware lacks native…

机器学习 · 计算机科学 2025-06-10 Pengxiang Zhao , Xiaoming Yuan

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

Pre-trained language models (PLMs) demonstrate remarkable intelligence but struggle with emerging tasks unseen during training in real-world applications. Training separate models for each new task is usually impractical. Multi-task…

计算与语言 · 计算机科学 2025-05-02 Xiao Zhang , Kangsheng Wang , Tianyu Hu , Huimin Ma

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…

机器学习 · 计算机科学 2024-10-22 Aozhong Zhang , Zi Yang , Naigang Wang , Yingyong Qi , Jack Xin , Xin Li , Penghang Yin

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

Post-training quantization (PTQ) of large language models (LLMs) holds the promise in reducing the prohibitive computational cost at inference time. Quantization of all weight, activation and key-value (KV) cache tensors to 4-bit without…

机器学习 · 计算机科学 2025-02-05 Utkarsh Saxena , Sayeh Sharify , Kaushik Roy , Xin Wang

Post-Training Quantization (PTQ) has become the de-facto standard for efficient LLM deployment, yet its optimization objective remains fundamentally incomplete. Standard PTQ methods minimize reconstruction error (e.g., MSE or KL divergence)…

人工智能 · 计算机科学 2026-03-19 Sunghyun Wee , Suyoung Kim , Hyeonjin Kim , Kyomin Hwang , Nojun Kwak

Quantization-aware training (QAT) is an effective method to drastically reduce the memory footprint of LLMs while keeping performance degradation at an acceptable level. However, the optimal choice of quantization format and bit-width…

机器学习 · 计算机科学 2026-02-18 Sohir Maskey , Constantin Eichenberg , Johannes Messner , Douglas Orr

Weight quantization effectively reduces memory consumption and enable the deployment of Large Language Models on edge devices, yet existing hardware-friendly methods often rely on uniform quantization, which suffers from poor…

机器学习 · 计算机科学 2026-02-03 Xin Nie , Liang Dong , Haicheng Zhang , Jiawang Xiao , G. Sun

Post-training quantization (PTQ) is a promising approach to reducing the storage and computational requirements of large language models (LLMs) without additional training cost. Recent PTQ studies have primarily focused on quantizing only…

机器学习 · 计算机科学 2026-02-17 Reena Elangovan , Charbel Sakr , Anand Raghunathan , Brucek Khailany