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In this paper, we introduce PruneVid, a visual token pruning method designed to enhance the efficiency of multi-modal video understanding. Large Language Models (LLMs) have shown promising performance in video tasks due to their extended…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Xiaohu Huang , Hao Zhou , Kai Han

Large Multimodal Models (LMMs) have demonstrated impressive capabilities in visual-language tasks but face significant deployment challenges due to their high computational demands. While recent token reduction methods show promise for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Bingxin Xu , Yuzhang Shang , Yunhao Ge , Qian Lou , Yan Yan

Large Vision-Language Models (LVLMs) have shown impressive performance across multi-modal tasks by encoding images into thousands of tokens. However, the large number of image tokens results in significant computational overhead, and the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Kaiyuan Li , Xiaoyue Chen , Chen Gao , Yong Li , Xinlei Chen

Visual token pruning reduces the computational cost of Vision-Language Models (VLMs) by removing redundant visual tokens. Existing methods typically rely on Gumbel-Softmax to approximate discrete selection during training. However, the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Landi He , Mingde Yao , Shawn Young , Lijian Xu

Large vision-language models (LVLMs) have demonstrated remarkable capabilities in multimodal understanding tasks. However, the increasing demand for high-resolution image and long-video understanding results in substantial token counts,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Junjie Chen , Xuyang Liu , Zichen Wen , Yiyu Wang , Siteng Huang , Honggang Chen

Due to the great saving of computation and memory overhead, token compression has become a research hot-spot for MLLMs and achieved remarkable progress in image-language tasks. However, for the video, existing methods still fall short of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Shaobo Ju , Baiyang Song , Tao Chen , Jiapeng Zhang , Qiong Wu , Chao Chang , HuaiXi Wang , Yiyi Zhou , Rongrong Ji

Multi-modal large language models (MLLMs) achieve strong visual-language reasoning but suffer from high inference cost due to redundant visual tokens. Recent work explores visual token pruning to accelerate inference, while existing pruning…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Xiwen Chen , Wenhui Zhu , Gen Li , Xuanzhao Dong , Yujian Xiong , Hao Wang , Peijie Qiu , Qingquan Song , Zhipeng Wang , Shao Tang , Yalin Wang , Abolfazl Razi

Vision encoders serve as the cornerstone of multimodal understanding. Single-encoder architectures like CLIP exhibit inherent constraints in generalizing across diverse multimodal tasks, while recent multi-encoder fusion methods introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Yuchen Liu , Yaoming Wang , Bowen Shi , Xiaopeng Zhang , Wenrui Dai , Chenglin Li , Hongkai Xiong , Qi Tian

Video large language models (video LLMs) excel at video comprehension but face significant computational inefficiency due to redundant video tokens. Existing token pruning methods offer solutions. However, approaches operating within the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Kele Shao , Keda Tao , Can Qin , Haoxuan You , Yang Sui , Huan Wang

Large Vision-Language Models (LVLMs) rely on dense visual tokens to capture fine-grained visual information, but processing all these tokens incurs substantial computational and memory overhead during inference. To address this issue, we…

Machine Learning · Computer Science 2026-03-24 Xu Li , Yi Zheng , Yuxuan Liang , Zhe Liu , Xiaolei Chen , Haotian Chen , Rui Zhu , Xiangyang Xue

Recent advancements in multimodal large language models (MLLMs) have aimed to integrate and interpret data across diverse modalities. However, the capacity of these models to concurrently process and reason about multiple modalities remains…

Vision-Language Models (VLMs) process thousands of visual tokens per image alongside comparatively few text tokens, yet existing compression methods treat both modalities uniformly. We observe that the two modalities have fundamentally…

Machine Learning · Computer Science 2026-05-29 Yilin Feng , Ahmed Burak Gulhan , Mahmut Taylan Kandemir

Large Language Models (LLMs) have demonstrated strong capabilities in natural language understanding and reasoning, while recent extensions that incorporate visual inputs enable them to process multimodal information. Despite these…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Pengcheng Zheng , Chaoning Zhang , Ya Wen , Wang Liu , Qigan Sun , Jiarong Mo , Jiaquan Zhang , Jewon Lee , Tae-Ho Kim , Kuien Liu , Tianyu Li , Caiyan Qin , Yang Yang

In this work, we present FastAV, the first token pruning framework tailored for audio-visual large language models (AV-LLMs). While token pruning has been actively explored in standard large language models (LLMs) and vision-language models…

Machine Learning · Computer Science 2026-01-21 Chaeyoung Jung , Youngjoon Jang , Seungwoo Lee , Joon Son Chung

Modern multimodal large language models (MLLMs) generate fluent responses from interleaved text, image, audio, and video inputs. However, identifying which input sources support each generated statement remains an open challenge. Existing…

Computation and Language · Computer Science 2026-04-16 Qianqi Yan , Yichen Guo , Ching-Chen Kuo , Shan Jiang , Hang Yin , Yang Zhao , Xin Eric Wang

Multimodal large language models (MLLMs) improve performance on vision-language tasks by integrating visual features from pre-trained vision encoders into large language models (LLMs). However, how MLLMs process and utilize visual…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Hao Yin , Guangzong Si , Zilei Wang

Large Vision-Language Models (LVLMs) incur substantial inference costs due to the processing of a vast number of visual tokens. Existing methods typically struggle to model progressive visual token reduction as a multi-step decision process…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Sihan Cao , Jianwei Zhang , Pengcheng Zheng , Jiaxin Yan , Caiyan Qin , Yalan Ye , Wei Dong , Peng Wang , Yang Yang , Chaoning Zhang

Video Large Language Models (VLLMs) demonstrate strong video understanding but suffer from inefficiency due to redundant visual tokens. Existing pruning primary targets intra-frame spatial redundancy or prunes inside the LLM with…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Jinlong Li , Liyuan Jiang , Haonan Zhang , Nicu Sebe

Visual token pruning aims to compress and prune redundant visual tokens which play a critical role in efficient inference with large vision-language models (LVLMs). However, most existing work estimates visual redundancy using a single…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Duo Li , Zuhao Yang , Xiaoqin Zhang , Ling Shao , Shijian Lu

LLM-powered coding agents spend the majority of their token budget reading repository files, yet much of the retrieved code is irrelevant to the task at hand. Existing learned pruners compress this context with a single-objective sequence…

Artificial Intelligence · Computer Science 2026-05-18 Jingjing Wang , Xiwen Chen , Wenhui Zhu , Huayu Li , Zhengxiao He , Feiyang Cai , Ana S. Carreon-Rascon , Xuanzhao Dong , Feng Luo