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Multimodal Large Language Models (MLLMs) are commonly derived by extending pre-trained Large Language Models (LLMs) with visual capabilities. In this work, we investigate how MLLMs process visual inputs by analyzing their attention…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Jiahui Wang , Zuyan Liu , Yongming Rao , Jiwen Lu

The efficiency of large vision-language models (LVLMs) is constrained by the computational bottleneck of the attention mechanism during the prefill phase and the memory bottleneck of fetching the key-value (KV) cache in the decoding phase,…

计算机视觉与模式识别 · 计算机科学 2024-12-19 Yefei He , Feng Chen , Jing Liu , Wenqi Shao , Hong Zhou , Kaipeng Zhang , Bohan Zhuang

Vision-language models (VLMs) have shown remarkable success across various multi-modal tasks, yet large VLMs encounter significant efficiency challenges due to processing numerous visual tokens. A promising approach to accelerating large…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Wangbo Zhao , Yizeng Han , Jiasheng Tang , Zhikai Li , Yibing Song , Kai Wang , Zhangyang Wang , Yang You

Document parsing is a fine-grained task where image resolution significantly impacts performance. While advanced research leveraging vision-language models benefits from high-resolution input to boost model performance, this often leads to…

Large language models (LLMs) achieved remarkable performance across various tasks. However, they face challenges in managing long documents and extended conversations, due to significantly increased computational requirements, both in…

计算与语言 · 计算机科学 2023-10-11 Yucheng Li , Bo Dong , Chenghua Lin , Frank Guerin

Transformer-based large language models (LLMs) have achieved remarkable success, yet their standard attention mechanism incurs quadratic computation and memory costs with respect to sequence length, posing a major bottleneck for…

机器学习 · 计算机科学 2025-10-22 Tao Bu , Qiangang Wang , Bowen Zeng , Hanwen Sun , Yunpeng Huang , Chun Cao , Jingwei Xu

Recent multimodal large language models (MLLMs) increasingly integrate multiple vision encoders to improve performance on various benchmarks, assuming that diverse pretraining objectives yield complementary visual signals. However, we show…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Yizhou Wang , Song Mao , Yang Chen , Yufan Shen , Yinqiao Yan , Pinlong Cai , Ding Wang , Guohang Yan , Zhi Yu , Xuming Hu , Botian Shi

Large language models (LLMs) have triggered a new stream of research focusing on compressing the context length to reduce the computational cost while ensuring the retention of helpful information for LLMs to answer the given question.…

计算与语言 · 计算机科学 2024-12-20 Barys Liskavets , Maxim Ushakov , Shuvendu Roy , Mark Klibanov , Ali Etemad , Shane Luke

Vision-Language Models (VLMs) demonstrate impressive performance in understanding visual content with language instruction by converting visual inputs to vision tokens. However, redundancy in vision tokens results in the degraded inference…

计算机视觉与模式识别 · 计算机科学 2026-03-04 Sixun Dong , Juhua Hu , Mian Zhang , Ming Yin , Yanjie Fu , Qi Qian

Large-scale vision language (VL) models use Transformers to perform cross-modal interactions between the input text and image. These cross-modal interactions are computationally expensive and memory-intensive due to the quadratic complexity…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Qingqing Cao , Bhargavi Paranjape , Hannaneh Hajishirzi

The projector plays a crucial role in multi-modal language models (MLLMs). The number of visual tokens it outputs affects the efficiency of the MLLM, while the quality of the visual tokens influences the visual understanding capabilities of…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Shun Qian , Bingquan Liu , Chengjie Sun , Zhen Xu , Baoxun Wang

Existing Multimodal Large Language Models (MLLMs) process a large number of visual tokens, leading to significant computational costs and inefficiency. Instruction-related visual token compression demonstrates strong task relevance, which…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Lei Lei , Jie Gu , Xiaokang Ma , Chu Tang , Jingmin Chen , Tong Xu

Large models achieve strong performance on Vision-and-Language Navigation (VLN) tasks, but are costly to run in resource-limited environments. Token pruning offers appealing tradeoffs for efficiency with minimal performance loss by reducing…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Wenda Qin , Andrea Burns , Bryan A. Plummer , Margrit Betke

Large Vision-Language Models (LVLMs) excel in cross-model tasks but experience performance declines in long-context reasoning due to overreliance on textual information and reduced visual dependency. In this study, we empirically analyze…

计算与语言 · 计算机科学 2024-12-23 Yucheng Zhou , Zhi Rao , Jun Wan , Jianbing Shen

Pedestrian Attribute Recognition (PAR) involves predicting fine-grained attributes such as clothing color, gender, and accessories from pedestrian imagery, yet is hindered by severe class imbalance, intricate attribute co-dependencies, and…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Abdellah Zakaria Sellam , Salah Eddine Bekhouche , Fadi Dornaika , Cosimo Distante , Abdenour Hadid

Large vision-language models (LVLMs) achieve strong multimodal understanding, but their inference cost grows rapidly with the number of visual tokens, especially for high-resolution images and long videos. Existing attention-based methods…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Hongyu Lu , Feng Zhang , Wenwei Jin , Huanling Hu , Tianjun Shi , Shikai Jiang , Yao Hu , Jiawei Li

Token pruning has emerged as an effective approach to reduce the substantial computational overhead of Large Vision-Language Models (LVLMs) by discarding less informative visual tokens while preserving performance. However, existing methods…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Kexin Ma , Jing Xiao , Chaofeng Chen , Geyong Min , Guibo Zhu , Jinqiao Wang , Liang Liao

Multimodal Large Language Models (MLLMs) typically process a large number of visual tokens, leading to considerable computational overhead, even though many of these tokens are redundant. Existing visual token pruning methods primarily…

计算机视觉与模式识别 · 计算机科学 2025-10-29 Jinhong Deng , Wen Li , Joey Tianyi Zhou , Yang He

Deep learning drives a new wave in computing systems and triggers the automation of increasingly complex problems. In particular, Large Language Models (LLMs) have significantly advanced cognitive tasks, often matching or even surpassing…

Large multimodal models excel in multimodal tasks but face significant computational challenges due to excessive computation on visual tokens. Unlike token reduction methods that focus on token-level redundancy, we identify and study the…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Penghao Wu , Lewei Lu , Ziwei Liu