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Video Large Language Models (VLLMs) incur substantial prefilling cost due to the large number of visual tokens. While attention-based token pruning offers a promising acceleration strategy, applying it at shallow decoder layers often causes…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Yingjie Xia , Tao Liu , Jinglei Shi , Qingsong Xie , Heng Guo , Jian Yang , Xi Wang

Large visual language models (LVLMs) have demonstrated excellent instruction-following capabilities, yet remain vulnerable to stealthy backdoor attacks when finetuned using contaminated data. Existing backdoor defense techniques are usually…

密码学与安全 · 计算机科学 2025-06-09 Yuan Xun , Siyuan Liang , Xiaojun Jia , Xinwei Liu , Xiaochun Cao

The deployment of Large Language Models (LLMs) on edge devices is fundamentally constrained by the "Memory Wall" -- a hardware limitation where memory bandwidth, not compute, becomes the bottleneck. Recent 1.58-bit quantization techniques…

机器学习 · 计算机科学 2026-02-06 David Alejandro Trejo Pizzo

Key-Value (KV) cache quantization has become a widely adopted optimization technique for efficient large language models (LLMs) inference by reducing KV cache memory usage and mitigating memory-bound constraints. Recent studies have…

计算与语言 · 计算机科学 2025-08-07 Zunhai Su , Kehong Yuan

Multimodal Transformers serve as the backbone for state-of-the-art vision-language models, yet their quadratic attention complexity remains a critical barrier to scalability. In this work, we investigate the viability of Linear Attention…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Armin Gerami , Seyedehanita Madani , Ramani Duraiswami

Post-training quantization (PTQ) of transformers is known to suffer from severe accuracy degradation due to structured activation outliers, as originally analyzed by Bondarenko et al. (EMNLP 2021) in work associated with Qualcomm AI…

机器学习 · 计算机科学 2026-03-05 Pranav Kumar Kaliaperumal

Large Language Models (LLMs) have demonstrated remarkable capabilities in various natural language processing tasks. However, their size presents significant challenges for deployment and inference. This paper investigates the quantization…

计算与语言 · 计算机科学 2025-05-01 Lucas Maisonnave , Cyril Moineau , Olivier Bichler , Fabrice Rastello

Gated DeltaNet (GDN) is a linear attention mechanism that replaces the growing KV cache with a fixed-size recurrent state. Hybrid LLMs like Qwen3-Next use 75% GDN layers and achieve competitive accuracy to attention-only models. However, at…

硬件体系结构 · 计算机科学 2026-03-09 Neelesh Gupta , Peter Wang , Rajgopal Kannan , Viktor K. Prasanna

Training large transformers is slow, but recent innovations on GPU architecture give us an advantage. NVIDIA Ampere GPUs can execute a fine-grained 2:4 sparse matrix multiplication twice as fast as its dense equivalent. In the light of this…

机器学习 · 计算机科学 2024-10-29 Yuezhou Hu , Kang Zhao , Weiyu Huang , Jianfei Chen , Jun Zhu

The presence of outliers in Large Language Models (LLMs) weights and activations makes them difficult to quantize. Recent work has leveraged rotations to mitigate these outliers. In this work, we propose methods that learn fusible rotations…

机器学习 · 计算机科学 2026-01-13 Advait Gadhikar , Riccardo Grazzi , James Hensman

In neural network models, soft mixtures of fixed candidate components (e.g., logic gates and sub-networks) are often used during training for stable optimization, while hard selection is typically used at inference. This raises questions…

机器学习 · 计算机科学 2026-03-17 Youngsung Kim

We demonstrate, for the first time, fully quantized training (FQT) of large language models (LLMs) using predominantly 4-bit floating-point (FP4) precision for weights, activations, and gradients on datasets up to 200 billion tokens. We…

机器学习 · 计算机科学 2025-08-12 Brian Chmiel , Maxim Fishman , Ron Banner , Daniel Soudry

Post-Training Quantization (PTQ) compresses large language models to low bit-widths using a small calibration set, and its quality depends strongly on which samples are chosen. We identify a failure mode in which calibration samples fail to…

机器学习 · 计算机科学 2026-04-28 Ibne Farabi Shihab , Sanjeda Akter , Anuj Sharma

Trainings of Large Language Models are generally bottlenecked by matrix multiplications. In the Transformer architecture, a large portion of these operations happens in the Feed Forward Network (FFN), and this portion increases for larger…

机器学习 · 计算机科学 2026-02-09 Meghana Madhyastha , Daniel Haziza , Jesse Cai , Newsha Ardalani , Zhiqi Bu , Carole-Jean Wu

We propose OASIS, an outlier- and sink-aware technique built on inter-layer null signaling. As AttnResidual architectures introduce an additional depth-wise normalization channel, they improve inter-layer routing flexibility but also…

Large-scale pre-trained Vision-Language Models (VLMs) have gained prominence in various visual and multimodal tasks, yet the deployment of VLMs on downstream application platforms remains challenging due to their prohibitive requirements of…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Huixin Sun , Runqi Wang , Yanjing Li , Xianbin Cao , Xiaolong Jiang , Yao Hu , Baochang Zhang

NVFP4 has grown increasingly popular as a 4-bit format for quantizing large language models due to its hardware support and its ability to retain useful information with relatively few bits per parameter. However, the format is not without…

计算与语言 · 计算机科学 2026-03-31 Jack Cook , Hyemin S. Lee , Kathryn Le , Junxian Guo , Giovanni Traverso , Anantha P. Chandrakasan , Song Han

In this paper, we address the problem of how to robustly train a ConvNet for regression, or deep robust regression. Traditionally, deep regression employs the L2 loss function, known to be sensitive to outliers, i.e. samples that either lie…

计算机视觉与模式识别 · 计算机科学 2018-08-29 Stéphane Lathuilière , Pablo Mesejo , Xavier Alameda-Pineda , Radu Horaud

As large language models (LLMs) grow in size, efficient compression techniques like quantization and sparsification are critical. While quantization maintains performance with reduced precision, structured sparsity methods, such as N:M…

Training Large Language Models (LLMs) on long contexts is severely constrained by prohibitive GPU memory overhead, not training time. The primary culprits are the activations, whose memory footprints scale linearly with sequence length. We…

计算与语言 · 计算机科学 2026-03-03 Wenhao Li , Daohai Yu , Gen Luo , Yuxin Zhang , Fei Chao , Rongrong Ji , Yifan Wu , Jiaxin Liu , Ziyang Gong , Zimu Liao