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We study quantization of log-likelihood ratios (LLR) in bit-interleaved coded modulation (BICM) systems in terms of an equivalent discrete channel. We propose to design the quantizer such that the quantizer outputs become equiprobable. We…

Information Theory · Computer Science 2009-05-06 Clemens Novak , Peter Fertl , Gerald Matz

Low-bit activation quantization remains a major bottleneck in efficient large language model (LLM) deployment. The difficulty is not only that activations contain outliers, but that their distributions are often poorly matched to a low-bit…

Machine Learning · Computer Science 2026-05-27 Ke Li , Dong An , Xiaoling Zang , Can Ye , Liang Xie , Qibo Qiu , Chen Shen , Xiaofei He , Wenxiao Wang

Large language model (LLM) inference poses significant challenges due to its intensive memory and computation demands. Weight and activation quantization (WAQ) offers a promising solution by reducing both memory footprint and arithmetic…

Machine Learning · Computer Science 2025-09-11 Xueying Wu , Baijun Zhou , Zhihui Gao , Yuzhe Fu , Qilin Zheng , Yintao He , Hai Li

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…

Machine Learning · Computer Science 2024-10-22 Aozhong Zhang , Zi Yang , Naigang Wang , Yingyong Qi , Jack Xin , Xin Li , Penghang Yin

As neural networks gain widespread adoption in embedded devices, there is a need for model compression techniques to facilitate deployment in resource-constrained environments. Quantization is one of the go-to methods yielding…

Machine Learning · Computer Science 2021-01-13 Karina Vasquez , Yeshwanth Venkatesha , Abhiroop Bhattacharjee , Abhishek Moitra , Priyadarshini Panda

In this paper, we propose MixA-Q, a mixed-precision activation quantization framework that leverages intra-layer activation sparsity (a concept widely explored in activation pruning methods) for efficient inference of quantized window-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Weitian Wang , Rai Shubham , Cecilia De La Parra , Akash Kumar

Post-training quantization (PTQ) enables effective model compression while preserving relatively high accuracy. Current weight-only PTQ methods primarily focus on the challenging sub-3-bit regime, where approaches often suffer significant…

Machine Learning · Computer Science 2026-01-28 Hongyaoxing Gu , Lijuan Hu , Liye Yu , Haowei Li , Fangfang Liu

Fine-tuning is a crucial process for adapting large language models (LLMs) to diverse applications. In certain scenarios, such as multi-tenant serving, deploying multiple LLMs becomes necessary to meet complex demands. Recent studies…

Computation and Language · Computer Science 2024-11-27 Bowen Ping , Shuo Wang , Hanqing Wang , Xu Han , Yuzhuang Xu , Yukun Yan , Yun Chen , Baobao Chang , Zhiyuan Liu , Maosong Sun

As quantum processors scale, monolithic architectures face growing challenges due to limited qubit density, heterogeneous error profiles, and restricted connectivity. Modular quantum systems, enabled by chip-to-chip coupler-connected…

Quantum Physics · Physics 2025-05-15 Zefan Du , Shuwen Kan , Samuel Stein , Zhiding Liang , Ang Li , Ying Mao

Adaptive optimizers with decoupled weight decay, such as AdamW, are the de facto standard for pre-training large transformer-based generative models. Yet the quadratic nature of the $\ell_2$ penalty embedded in weight decay drives all…

Machine Learning · Computer Science 2025-11-19 Fu-Ming Guo , Yingfang Fan

This paper presents a comprehensive analysis of quantization techniques for optimizing Large Language Models (LLMs), specifically focusing on Post-Training Quantization (PTQ) and Quantization-Aware Training (QAT). Through empirical…

Machine Learning · Computer Science 2024-11-12 Jahid Hasan

Deep neural networks with adaptive configurations have gained increasing attention due to the instant and flexible deployment of these models on platforms with different resource budgets. In this paper, we investigate a novel option to…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Qing Jin , Linjie Yang , Zhenyu Liao

Large language models (LLMs) demand substantial computational and memory resources, posing challenges for efficient deployment. Two complementary approaches have emerged to address these issues: token-adaptive layer execution, which reduces…

Machine Learning · Computer Science 2026-02-26 Kanghyun Noh , Jinheon Choi , Yulhwa Kim

Large Language Models (LLMs) are powerful but incur high memory and computation costs. Quantization is an effective solution, with INT weights and FP activations being widely adopted to preserve accuracy. Prior works further reduce FP…

Hardware Architecture · Computer Science 2026-02-24 Xinyu Wang , Jieyu Li , Yanan Sun , Weifeng He

Current quantization methods for LLMs predominantly rely on block-wise structures to maintain efficiency, often at the cost of representational flexibility. In this work, we demonstrate that element-wise quantization can be made as…

Machine Learning · Computer Science 2026-02-02 Pingzhi Tang , Ruijie Zhou , Fanxu Meng , Wenjie Pei , Muhan Zhang

Large Language Models (LLMs) have greatly pushed forward advancements in natural language processing, yet their high memory and computational demands hinder practical deployment. Binarization, as an effective compression technique, can…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Zhiteng Li , Xianglong Yan , Tianao Zhang , Haotong Qin , Dong Xie , Jiang Tian , zhongchao shi , Linghe Kong , Yulun Zhang , Xiaokang Yang

We investigate how different compression techniques -- such as weight and activation quantization, and weight sparsity -- affect the scaling behavior of large language models (LLMs) during pretraining. Building on previous work showing that…

Machine Learning · Computer Science 2025-02-27 Elias Frantar , Utku Evci , Wonpyo Park , Neil Houlsby , Dan Alistarh

Computing the distinct features from input data, before the classification, is a part of complexity to the methods of Automatic Modulation Classification (AMC) which deals with modulation classification was a pattern recognition problem.…

Signal Processing · Electrical Eng. & Systems 2019-05-14 Ahmed K. Ali , Ergun Erçelebi

Large language models~(LLMs) have recently demonstrated promising performance in many tasks. However, the high storage and computational cost of LLMs has become a challenge for deploying LLMs. Weight quantization has been widely used for…

Machine Learning · Computer Science 2025-02-11 Wen-Pu Cai , Ming-Yang Li , Wu-Jun Li

Quantitative acoustic microscopy (QAM) is a cutting-edge imaging modality that leverages very high-frequency ultrasound to characterize the acoustic and mechanical properties of biological tissues at microscopic resolutions. Radio-frequency…

Signal Processing · Electrical Eng. & Systems 2025-07-18 Lorena Leon , Jonathan Mamou , Denis Kouamé , Adrian Basarab
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