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Video Question Answering (VQA) in long videos poses the key challenge of extracting relevant information and modeling long-range dependencies from many redundant frames. The self-attention mechanism provides a general solution for sequence…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Md Mohaiminul Islam , Tushar Nagarajan , Huiyu Wang , Gedas Bertasius , Lorenzo Torresani

Although current Video-LLMs achieve impressive performance in video understanding tasks, their autoregressive decoding efficiency remains constrained by the massive number of video tokens. Visual token pruning can partially ease this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Quan Kong , Yuhao Shen , Yicheng Ji , Huan Li , Cong Wang

Rapid advances in Large Language Models (LLMs) have spurred demand for processing extended context sequences in contemporary applications. However, this progress faces two challenges: performance degradation due to sequence lengths…

Computation and Language · Computer Science 2025-10-10 Wei Wu , Zhuoshi Pan , Chao Wang , Liyi Chen , Yunchu Bai , Tianfu Wang , Kun Fu , Zheng Wang , Hui Xiong

In this work, we present a novel method to tackle the token generation challenge in Vision Language Models (VLMs) for video and image understanding, called LLaMA-VID. Current VLMs, while proficient in tasks like image captioning and visual…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Yanwei Li , Chengyao Wang , Jiaya Jia

Recent advances in large language models (LLMs) have showcased exceptional performance in long-context tasks, while facing significant inference efficiency challenges with limited GPU memory. Existing solutions first proposed the…

Computation and Language · Computer Science 2025-02-20 Qingfa Xiao , Jiachuan Wang , Haoyang Li , Cheng Deng , Jiaqi Tang , Shuangyin Li , Yongqi Zhang , Jun Wang , Lei Chen

Training-free video large language models (LLMs) leverage pretrained Image LLMs to process video content without the need for further training. A key challenge in such approaches is the difficulty of retaining essential visual and temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Leqi Shen , Tao He , Guoqiang Gong , Fan Yang , Yifeng Zhang , Pengzhang Liu , Sicheng Zhao , Guiguang Ding

Video text-based visual question answering (Video TextVQA) aims to answer questions by reasoning over visual textual content appearing in videos. Despite the strong multimodal video understanding capabilities of recent Video-LLMs, their…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Haibin He , Maoyuan Ye , Jing Zhang , Juhua Liu , Bo Du

This paper introduces LongViTU, a large-scale (~121k QA pairs, ~900h videos), automatically generated dataset for long-form video understanding. We propose a systematic approach that organizes videos into a hierarchical tree structure for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Rujie Wu , Xiaojian Ma , Hai Ci , Yue Fan , Yuxuan Wang , Haozhe Zhao , Qing Li , Yizhou Wang

Streaming video understanding requires models to robustly encode, store, and retrieve information from a continuous video stream to support accurate video question answering (VQA). Existing state-of-the-art approaches rely on key-value…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Vatsal Agarwal , Saksham Suri , Matthew Gwilliam , Pulkit Kumar , Abhinav Shrivastava

Over recent years, the Transformer has become a fundamental building block for sequence modeling architectures. Yet at its core is the use of self-attention, whose memory and computational cost grow quadratically with the sequence length…

Machine Learning · Computer Science 2025-04-02 Qiuhao Zeng , Jerry Huang , Peng Lu , Gezheng Xu , Boxing Chen , Charles Ling , Boyu Wang

As the computational needs of Large Vision-Language Models (LVLMs) increase, visual token pruning has proven effective in improving inference speed and memory efficiency. Traditional pruning methods in LVLMs predominantly focus on attention…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Bozhi Luan , Wengang Zhou , Hao Feng , Zhe Wang , Xiaosong Li , Houqiang Li

Continual VideoQA with multimodal LLMs is hindered by interference between tasks and the prohibitive cost of storing task-specific prompts. We introduce HyperTokens, a transformer-based token generator that produces fine-tuning tokens on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Toan Nguyen , Yang Liu , Celso De Melo , Flora D. Salim

LLMs are seeing growing use for applications which require large context windows, and with these large context windows KV cache activations surface as the dominant contributor to memory consumption during inference. Quantization is a…

Machine Learning · Computer Science 2025-05-30 Coleman Hooper , Sehoon Kim , Hiva Mohammadzadeh , Michael W. Mahoney , Yakun Sophia Shao , Kurt Keutzer , Amir Gholami

Long video understanding remains challenging for Multi-modal Large Language Models (MLLMs) due to high memory costs and context-length limits. Prior approaches mitigate this by scoring and selecting frames/tokens within short clips, but…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Haozhe Qi , Kevin Qu , Mahdi Rad , Rui Wang , Alexander Mathis , Marc Pollefeys

Video-guided Multimodal Translation (VMT) has advanced significantly in recent years. However, most existing methods rely on locally aligned video segments paired one-to-one with subtitles, limiting their ability to capture global narrative…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Jian Chen , JinZe Lv , Zi Long , XiangHua Fu

Recent advances in Video Large Language Models (VLLMs) have achieved remarkable video understanding capabilities, yet face critical efficiency bottlenecks due to quadratic computational growth with lengthy visual token sequences of long…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Yulin Li , Haokun Gui , Ziyang Fan , Junjie Wang , Bin Kang , Bin Chen , Zhuotao Tian

High-resolution Vision-Language Models (VLMs) are widely used in multimodal tasks to enhance accuracy by preserving detailed image information. However, these models often generate an excessive number of visual tokens due to the need to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Kazi Hasan Ibn Arif , JinYi Yoon , Dimitrios S. Nikolopoulos , Hans Vandierendonck , Deepu John , Bo Ji

The rapid advancements in vision-language models (VLMs), such as CLIP, have intensified the need to address distribution shifts between training and testing datasets. Although prior Test-Time Training (TTT) techniques for VLMs have…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Yuto Kojima , Jiarui Xu , Xueyan Zou , Xiaolong Wang

Omni-modal large language models (om-LLMs) achieve unified audio-visual understanding by encoding video and audio into temporally aligned token sequences interleaved at the window level. However, processing these dense non-textual tokens…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Zijie Xin , Jie Yang , Ruixiang Zhao , Tianyi Wang , Fengyun Rao , Jing Lyu , Xirong Li

While vision-language models (VLMs) excel at tasks involving single images or short videos, they still struggle with Long Video Question Answering (LVQA) due to its demand for complex multi-step temporal reasoning. Vanilla approaches, which…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Sahil Shah , S P Sharan , Harsh Goel , Minkyu Choi , Mustafa Munir , Manvik Pasula , Radu Marculescu , Sandeep Chinchali