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Transformer-based large language models (LLMs) excel in modeling complex language patterns but face significant computational costs during inference, especially with long inputs due to the attention mechanism's memory overhead. We observe…

Computation and Language · Computer Science 2024-10-18 Ruiqing Yan , Linghan Zheng , Xingbo Du , Han Zou , Yufeng Guo , Jianfei Yang

Large Language Models (LLMs) have advanced rapidly but face significant memory demands. While quantization has shown promise for LLMs, current methods typically require lengthy training to alleviate the performance degradation from…

Artificial Intelligence · Computer Science 2024-05-31 Ke Yi , Yuhui Xu , Heng Chang , Chen Tang , Yuan Meng , Tong Zhang , Jia Li

The quadratic complexity of the attention mechanism in Transformer models has motivated the development of alternative architectures with sub-quadratic scaling, such as state-space models. Among these, Mamba has emerged as a leading…

Machine Learning · Computer Science 2025-12-16 Peng Lu , Jerry Huang , Qiuhao Zeng , Xinyu Wang , Boxing Chen , Philippe Langlais , Yufei Cui

The Mamba model, utilizing a structured state-space model (SSM), offers linear time complexity and demonstrates significant potential. Vision Mamba (ViM) extends this framework to vision tasks by incorporating a bidirectional SSM and patch…

Image and Video Processing · Electrical Eng. & Systems 2025-02-14 Bo-Yun Shi , Yi-Cheng Lo , An-Yeu , Wu , Yi-Min Tsai

State Space Models (SSMs), as key components of Mamaba, have gained increasing attention for vision models recently, thanks to their efficient long sequence modeling capability. Given the computational cost of deploying SSMs on…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Yinglong Li , Xiaoyu Liu , Jiacheng Li , Ruikang Xu , Yinda Chen , Zhiwei Xiong

Linear RNN architectures, like Mamba, can be competitive with Transformer models in language modeling while having advantageous deployment characteristics. Given the focus on training large-scale Transformer models, we consider the…

Machine Learning · Computer Science 2025-06-30 Junxiong Wang , Daniele Paliotta , Avner May , Alexander M. Rush , Tri Dao

This paper explores the improvement of post-training quantization (PTQ) after knowledge distillation in the Whisper speech foundation model family. We address the challenge of outliers in weights and activation tensors, known to impede…

Sound · Computer Science 2024-06-18 Dominik Wagner , Ilja Baumann , Korbinian Riedhammer , Tobias Bocklet

Diffusion language models (DLMs) have recently emerged as competitive alternatives to autoregressive (AR) language models, yet differences in their activation dynamics remain poorly understood. We characterize these dynamics in LLaDA-8B and…

Machine Learning · Computer Science 2026-05-12 Alexander Conzelmann , Albert Catalan-Tatjer , Shiwei Liu

Several post-training quantization methods have been applied to large language models (LLMs), and have been shown to perform well down to 8-bits. We find that these methods break down at lower bit precision, and investigate quantization…

Computation and Language · Computer Science 2023-05-30 Zechun Liu , Barlas Oguz , Changsheng Zhao , Ernie Chang , Pierre Stock , Yashar Mehdad , Yangyang Shi , Raghuraman Krishnamoorthi , Vikas Chandra

Post-training Quantization (PTQ) technique has been extensively adopted for large language models (LLMs) compression owing to its efficiency and low resource requirement. However, current research lacks a in-depth analysis of the superior…

Machine Learning · Computer Science 2025-05-22 Jiaqi Zhao , Ming Wang , Miao Zhang , Yuzhang Shang , Xuebo Liu , Yaowei Wang , Min Zhang , Liqiang Nie

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…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yufei Xue , Yushi Huang , Jiawei Shao , Lunjie Zhu , Chi Zhang , Xuelong Li , Jun Zhang

Recent advances in efficient sequence modeling have led to attention-free layers, such as Mamba, RWKV, and various gated RNNs, all featuring sub-quadratic complexity in sequence length and excellent scaling properties, enabling the…

Machine Learning · Computer Science 2024-10-21 Itamar Zimerman , Ameen Ali , Lior Wolf

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…

Machine Learning · Computer Science 2025-10-07 Tianao Zhang , Zhiteng Li , Xianglong Yan , Haotong Qin , Yong Guo , Yulun Zhang

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…

Artificial Intelligence · Computer Science 2026-03-27 Shigeng Wang , Chao Li , Yangyuxuan Kang , Jiawei Fan , Zhonghong Ou , Anbang Yao

Mamba state-space models (SSMs) have recently outperformed state-of-the-art (SOTA) Transformer large language models (LLMs) in various tasks and been widely adapted. However, a major concern for stable learning in recurrent-based deep…

Machine Learning · Computer Science 2025-09-01 John T. Halloran , Manbir Gulati , Paul F. Roysdon

Mamba has recently gained widespread attention as a backbone model for point cloud modeling, leveraging a state-space architecture that enables efficient global sequence modeling with linear complexity. However, its lack of local inductive…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Xuanyu Lin , Xiaona Zeng , Xianwei Zheng , Xutao Li

Transformers are the cornerstone of modern large language models, but their quadratic computational complexity limits efficiency in long-sequence processing. Recent advancements in Mamba, a state space model (SSM) with linear complexity,…

Machine Learning · Computer Science 2026-01-08 Yixing Li , Ruobing Xie , Zhen Yang , Xingwu Sun , Shuaipeng Li , Weidong Han , Zhanhui Kang , Yu Cheng , Chengzhong Xu , Di Wang , Jie Jiang

Continual learning (CL) aims to efficiently learn from a non-stationary data stream, without storing or recomputing all seen samples. CL enables prediction on new tasks by incorporating sequential training samples. Building on this…

Machine Learning · Computer Science 2025-05-27 Chongyang Zhao , Dong Gong

The typical Selective State-Space Model (SSM) used in Mamba addresses several limitations of Transformers, such as the quadratic computational complexity with respect to sequence length and the significant memory requirements during…

Computation and Language · Computer Science 2025-10-24 Shengkun Tang , Liqun Ma , Haonan Li , Mingjie Sun , Zhiqiang Shen

Low-bit weight-only quantization significantly reduces the memory footprint of large language models (LLMs), but disproportionately affects certain examples. We analyze diverse 3-4 bit methods on LLMs ranging from 7B-70B in size and find…

Machine Learning · Computer Science 2025-09-25 Ting-Yun Chang , Muru Zhang , Jesse Thomason , Robin Jia