English
Related papers

Related papers: QAM-W: Joint 2D Codebook Quantization for LLM Weig…

200 papers

Large language models (LLMs) are costly to deploy due to their large memory footprint and high inference cost. Weight-activation quantization can reduce these costs, but low-bit activation quantization remains difficult because activation…

Machine Learning · Computer Science 2026-05-12 Chayne Thrash , Ali Abbasi , Soheil Kolouri

Post-training quantization (PTQ) is essential for deploying LLMs under memory and bandwidth constraints. However, extreme low-bit quantization remains highly sensitive to activation outliers and anisotropic weight curvature. Existing…

Machine Learning · Computer Science 2026-05-29 Artur Zagitov , Gleb Molodtsov , Aleksandr Beznosikov

Rotating the activation and weight matrices to reduce the influence of outliers in large language models (LLMs) has recently attracted significant attention, particularly in the context of model quantization. Prior studies have shown that…

Machine Learning · Computer Science 2025-07-16 Jingyang Xiang , Sai Qian Zhang

Adaptive modulation and coding (AMC) is widely employed in modern wireless communication systems to improve the transmission efficiency by adjusting the transmission rate according to the channel conditions. Thus, AMC can provide very…

Signal Processing · Electrical Eng. & Systems 2017-12-21 Zhe Yang , Lin Cai , Aaron Gulliver , Liang He , Jianping Pan

Parameter quantization for Large Language Models (LLMs) has attracted increasing attentions recently in reducing memory costs and improving computational efficiency. Early approaches have been widely adopted. However, the existing methods…

Machine Learning · Computer Science 2024-06-04 Haoyu Wang , Bei Liu , Hang Shao , Bo Xiao , Ke Zeng , Guanglu Wan , Yanmin Qian

Large language models (LLMs) have transformed numerous AI applications. On-device LLM is becoming increasingly important: running LLMs locally on edge devices can reduce the cloud computing cost and protect users' privacy. However, the…

Computation and Language · Computer Science 2026-04-28 Ji Lin , Jiaming Tang , Haotian Tang , Shang Yang , Wei-Ming Chen , Wei-Chen Wang , Guangxuan Xiao , Xingyu Dang , Chuang Gan , Song Han

Deploying Deep Neural Networks in low-power embedded devices for real time-constrained applications requires optimization of memory and computational complexity of the networks, usually by quantizing the weights. Most of the existing works…

Machine Learning · Computer Science 2022-03-11 Dominika Przewlocka-Rus , Syed Shakib Sarwar , H. Ekin Sumbul , Yuecheng Li , Barbara De Salvo

Quantization can drastically increase the efficiency of large language and vision models, but typically incurs an accuracy drop. Recently, function-preserving transforms (e.g. rotations, Hadamard transform, channel-wise scaling) have been…

Machine Learning · Computer Science 2026-03-05 Marco Federici , Boris van Breugel , Paul Whatmough , Markus Nagel

We numerically and experimentally investigate the laser phase noise tolerance of probabilistically shaped (PS) and uniformly shaped (US) quadrature amplitude modulation (QAM) signals. In the simulations, we compare PS-64QAM to US-16QAM,…

Signal Processing · Electrical Eng. & Systems 2020-12-16 Takeo Sasai , Asuka Matsushita , Masanori Nakamura , Seiji Okamoto , Fukutaro Hamaoka , Yoshiaki Kisaka

We present PolarQuant, a post-training weight quantization method for large language models (LLMs) that exploits the distributional structure of neural network weights to achieve near-lossless compression. PolarQuant operates in three…

Computation and Language · Computer Science 2026-04-22 Caio Vicentino

Large-scale language models (LLMs) excel in language processing tasks but face deployment challenges due to high memory and computational demands. While low-bit quantization, such as 4-bit techniques, offers a potential solution, these…

Machine Learning · Computer Science 2025-02-06 Dongyoung Lee , Seungkyu Choi , Ik Joon Chang

Large language models(LLMs) exhibit excellent performance across a variety of tasks, but they come with significant computational and storage costs. Quantizing these models is an effective way to alleviate this issue. However, existing…

Machine Learning · Computer Science 2023-11-14 Baisong Li , Xingwang Wang , Haixiao Xu

We consider the problem of model compression for Large Language Models (LLMs) at post-training time, where the task is to compress a well-trained model using only a small set of calibration input data. In this work, we introduce a new…

Machine Learning · Statistics 2024-12-12 Meyer Scetbon , James Hensman

In this work, a deep learning-based quantization scheme for log-likelihood ratio (L-value) storage is introduced. We analyze the dependency between the average magnitude of different L-values from the same quadrature amplitude modulation…

Machine Learning · Computer Science 2021-05-11 Marius Arvinte , Sriram Vishwanath , Ahmed H. Tewfik

We propose Rotate, Clip, and Partition (RCP), a quantization-aware training (QAT) approach that first realizes extreme compression of LLMs with W2A4KV4(2-bit weight, 4-bit activation, and 4-bit KV cache) configuration. RCP integrates recent…

Machine Learning · Computer Science 2025-09-03 Euntae Choi , Sumin Song , Woosang Lim , Sungjoo Yoo

Recently, quantization has been widely used for the compression and acceleration of large language models (LLMs). Due to the outliers in LLMs, it is crucial to flatten weights and activations to minimize quantization error with equally…

Computation and Language · Computer Science 2025-08-12 Yuxuan Sun , Ruikang Liu , Haoli Bai , Han Bao , Kang Zhao , Yuening Li , Jiaxin Hu , Xianzhi Yu , Lu Hou , Chun Yuan , Xin Jiang , Wulong Liu , Jun Yao

Post training quantization is essential for deploying large language models (LLMs) on resource constrained hardware, yet state of the art methods enforce uniform bit widths across layers, yielding suboptimal accuracy efficiency trade offs.…

Machine Learning · Computer Science 2026-03-19 Arpit Singh Gautam , Saurabh Jha

Post-training quantization (PTQ) has become an important technique for reducing the inference cost of Large Language Models (LLMs). While recent mixed-precision methods improve ultra-low bit quantization by preserving critical subspaces in…

Machine Learning · Computer Science 2026-04-30 Zhe Ding , Su Pan , Duowei Pan

This work studies post-training parameter quantization in large language models (LLMs). We introduce quantization with incoherence processing (QuIP), a new method based on the insight that quantization benefits from $\textit{incoherent}$…

Machine Learning · Computer Science 2024-01-17 Jerry Chee , Yaohui Cai , Volodymyr Kuleshov , Christopher De Sa

Recent neural audio codecs have achieved impressive reconstruction quality, typically relying on quantization methods such as Residual Vector Quantization (RVQ), Vector Quantization (VQ) and Finite Scalar Quantization (FSQ). However, these…

Sound · Computer Science 2026-05-19 Tal Shuster , Eliya Nachmani