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Knowledge editing aims to update specific facts in large language models (LLMs) without full retraining. Prior efforts sought to tune the knowledge layers of LLMs, achieving improved performance in controlled, teacher-forced evaluations.…

计算与语言 · 计算机科学 2026-02-02 Ruilin Li , Yibin Wang , Wenhong Zhu , Chenglin Li , Jinghao Zhang , Chenliang Li , Junchi Yan , Jiaqi Wang

Reinforcement learning based post-training paradigms for Video Large Language Models (VideoLLMs) have achieved significant success by optimizing for visual-semantic tasks such as captioning or VideoQA. However, while these approaches…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Xiaokun Sun , Zezhong Wu , Zewen Ding , Linli Xu

Long video understanding is challenging due to rich and complicated multimodal clues in long temporal range.Current methods adopt reasoning to improve the model's ability to analyze complex video clues in long videos via text-form…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Houlun Chen , Xin Wang , Guangyao Li , Yuwei Zhou , Yihan Chen , Jia Jia , Wenwu Zhu

In this paper, we propose to learn temporal embeddings of video frames for complex video analysis. Large quantities of unlabeled video data can be easily obtained from the Internet. These videos possess the implicit weak label that they are…

计算机视觉与模式识别 · 计算机科学 2015-05-05 Vignesh Ramanathan , Kevin Tang , Greg Mori , Li Fei-Fei

Large Video Language Models (LVLMs) have rapidly emerged as the focus of multimedia AI research. Nonetheless, when confronted with lengthy videos, these models struggle: their temporal windows are narrow, and they fail to notice…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Zongsheng Cao , Yangfan He , Anran Liu , Feng Chen , Zepeng Wang , Jun Xie

Large Vision-Language Models (LVLMs) offer remarkable benefits for a variety of vision-language tasks. However, a challenge hindering their application in real-world scenarios, particularly regarding safety, robustness, and reliability, is…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Jiaying Lu , Jinmeng Rao , Kezhen Chen , Xiaoyuan Guo , Yawen Zhang , Baochen Sun , Carl Yang , Jie Yang

The task of temporally grounding language queries in videos is to temporally localize the best matched video segment corresponding to a given language (sentence). It requires certain models to simultaneously perform visual and linguistic…

计算机视觉与模式识别 · 计算机科学 2019-12-19 Jingwen Wang , Lin Ma , Wenhao Jiang

Mainstream Multimodal Large Language Models (MLLMs) achieve visual understanding by using a vision projector to bridge well-pretrained vision encoders and large language models (LLMs). The inherent gap between visual and textual modalities…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Jianting Tang , Yubo Wang , Haoyu Cao , Linli Xu

Weakly-Supervised Dense Video Captioning (WSDVC) aims to localize and describe all events of interest in a video without requiring annotations of event boundaries. This setting poses a great challenge in accurately locating the temporal…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Shiping Ge , Qiang Chen , Zhiwei Jiang , Yafeng Yin , Liu Qin , Ziyao Chen , Qing Gu

Vision Language Models (VLMs) are becoming increasingly integral to multimedia understanding; however, they often struggle with domain-specific video classification tasks, particularly in cases with limited data. This stems from a critical…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Meilong Xu , Di Fu , Jiaxing Zhang , Gong Yu , Jiayu Zheng , Xiaoling Hu , Dongdi Zhao , Feiyang Li , Chao Chen , Yong Cao

Intent-oriented controlled video captioning aims to generate targeted descriptions for specific targets in a video based on customized user intent. Current Large Visual Language Models (LVLMs) have gained strong instruction following and…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Tianheng Qiu , Jingchun Gao , Jingyu Li , Huiyi Leong , Xuan Huang , Xi Wang , Xiaocheng Zhang , Kele Xu , Lan Zhang

We address the problem of text-guided video temporal grounding, which aims to identify the time interval of a certain event based on a natural language description. Different from most existing methods that only consider RGB images as…

计算机视觉与模式识别 · 计算机科学 2021-11-01 Yi-Wen Chen , Yi-Hsuan Tsai , Ming-Hsuan Yang

Rapid development of large language models (LLMs) has significantly advanced multimodal large language models (LMMs), particularly in vision-language tasks. However, existing video-language models often overlook precise temporal…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Shimin Chen , Xiaohan Lan , Yitian Yuan , Zequn Jie , Lin Ma

Achieving human-like reasoning in deep learning models for complex tasks in unknown environments remains a critical challenge in embodied intelligence. While advanced vision-language models (VLMs) excel in static scene understanding, their…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Jinzhou Tang , Jusheng zhang , Sidi Liu , Waikit Xiu , Qinhan Lv , Xiying Li

Video Temporal Grounding (VTG) faces a cross-modal semantic gap that often leads to background features being incorrectly aligned with the query, while directly matching the query to moments results in insufficient discriminability and…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Ran Ran , Jiwei Wei , Shuchang Zhou , Yitong Qin , Shiyuan He , Zeyu Ma , Yuyang Zhou , Yang Yang

Understanding videos requires more than answering open ended questions, it demands the ability to pinpoint when events occur and how entities interact across time. While recent Video LLMs have achieved remarkable progress in holistic…

计算机视觉与模式识别 · 计算机科学 2025-08-22 Pengcheng Fang , Yuxia Chen , Rui Guo

Multimodal large language models (MLLMs) perform well on many vision-language tasks but often struggle with vision-centric problems that require fine-grained visual reasoning. Recent evidence suggests that this limitation arises not from…

计算机视觉与模式识别 · 计算机科学 2026-04-15 Sophia Sirko-Galouchenko , Monika Wysoczanska , Andrei Bursuc , Nicolas Thome , Spyros Gidaris

Temporal sentence grounding aims to detect event timestamps described by the natural language query from given untrimmed videos. The existing fully-supervised setting achieves great results but requires expensive annotation costs; while the…

计算机视觉与模式识别 · 计算机科学 2025-02-19 Haicheng Wang , Chen Ju , Weixiong Lin , Chaofan Ma , Shuai Xiao , Ya Zhang , Yanfeng Wang

In Learned Video Compression (LVC), improving inter prediction, such as enhancing temporal context mining and mitigating accumulated errors, is crucial for boosting rate-distortion performance. Existing LVCs mainly focus on mining the…

图像与视频处理 · 电气工程与系统科学 2025-10-29 Wei Jiang , Junru Li , Kai Zhang , Li Zhang

Video Moment Retrieval (VMR) aims to retrieve temporal segments in untrimmed videos corresponding to a given language query by constructing cross-modal alignment strategies. However, these existing strategies are often sub-optimal since…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Zhihang Liu , Jun Li , Hongtao Xie , Pandeng Li , Jiannan Ge , Sun-Ao Liu , Guoqing Jin