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Transformer architectures have achieved remarkable success in various domains. While efficient alternatives to Softmax Attention have been widely studied, the search for more expressive mechanisms grounded in theoretical insight-even at…

机器学习 · 计算机科学 2025-10-03 Yifei Zuo , Yutong Yin , Zhichen Zeng , Ang Li , Banghua Zhu , Zhaoran Wang

Multimodal Large Language Models (MLLMs) have significantly improved performance across various image-language applications. Recently, there has been a growing interest in adapting image pre-trained MLLMs for video-related tasks. However,…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Mingze Gao , Jingyu Liu , Mingda Li , Jiangtao Xie , Qingbin Liu , Bo Zhao , Xi Chen , Hui Xiong

Zero-shot temporal action localization (ZS-TAL) consists of classifying and localizing actions in untrimmed videos, where action classes are unseen at training time. Existing work uses Vision and Language Models (VLMs), taking advantage of…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Benedetta Liberatori , Alessandro Conti , Lorenzo Vaquero , Paolo Rota , Yiming Wang , Elisa Ricci

Recent advances in Video Large Language Models (Video-LLMs) have greatly expanded multimodal reasoning capabilities. However, the massive number of visual tokens extracted from long video sequences incurs prohibitive computational costs,…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Minyoung Park , Taehun Kong , Sangjun Ahn

Online Temporal Action Localization (On-TAL) aims to immediately provide action instances from untrimmed streaming videos. The model is not allowed to utilize future frames and any processing techniques to modify past predictions, making…

计算机视觉与模式识别 · 计算机科学 2022-11-10 Tuan N. Tang , Jungin Park , Kwonyoung Kim , Kwanghoon Sohn

Controllable video generation has emerged as a versatile tool for autonomous driving, enabling realistic synthesis of traffic scenarios. However, existing methods depend on control signals at inference time to guide the generative model…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Mirlan Karimov , Teodora Spasojevic , Markus Braun , Julian Wiederer , Vasileios Belagiannis , Marc Pollefeys

Low-Rank Adaptation (LoRA) is now the dominant method for parameter-efficient fine-tuning of large language models, but achieving a high-quality adapter often requires systematic hyperparameter tuning because LoRA performance is highly…

机器学习 · 计算机科学 2026-04-13 Jingwei Zuo , Xinze Feng , Zien Liu , Kaijian Wang , Fanjiang Ye , Ye Cao , Zhuang Wang , Yuke Wang

Weakly-supervised temporal action localization (WTAL) aims to recognize and localize action instances with only video-level labels. Despite the significant progress, existing methods suffer from severe performance degradation when…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Yangcen Liu , Ziyi Liu , Yuanhao Zhai , Wen Li , David Doerman , Junsong Yuan

Temporal action localization (TAL) is an important and challenging problem in video understanding. However, most existing TAL benchmarks are built upon the coarse granularity of action classes, which exhibits two major limitations in this…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Yi Liu , Limin Wang , Yali Wang , Xiao Ma , Yu Qiao

Temporal Action Localization (TAL) is a challenging task in video understanding that aims to identify and localize actions within a video sequence. Recent studies have emphasized the importance of applying long-term temporal context…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Tuan N. Tang , Kwonyoung Kim , Kwanghoon Sohn

The full potential of large pretrained models remains largely untapped in control domains like robotics. This is mainly because of the scarcity of data and the computational challenges associated with training or fine-tuning these large…

机器学习 · 计算机科学 2024-03-11 Zuxin Liu , Jesse Zhang , Kavosh Asadi , Yao Liu , Ding Zhao , Shoham Sabach , Rasool Fakoor

Scaling video diffusion transformers (DiTs) is limited by their quadratic 3D attention, even though most of the attention mass concentrates on a small subset of positions. We turn this observation into VSA, a trainable, hardware-efficient…

计算机视觉与模式识别 · 计算机科学 2025-10-29 Peiyuan Zhang , Yongqi Chen , Haofeng Huang , Will Lin , Zhengzhong Liu , Ion Stoica , Eric Xing , Hao Zhang

Weakly-supervised action localization aims to recognize and localize action instancese in untrimmed videos with only video-level labels. Most existing models rely on multiple instance learning(MIL), where the predictions of unlabeled…

计算机视觉与模式识别 · 计算机科学 2023-09-27 Guiqin Wang , Peng Zhao , Cong Zhao , Shusen Yang , Jie Cheng , Luziwei Leng , Jianxing Liao , Qinghai Guo

Human Activity Recognition (HAR) is a core task in pervasive computing systems, where models must operate under strict computational constraints while remaining robust to heterogeneous and evolving deployment conditions. Recent advances…

机器学习 · 计算机科学 2026-05-13 Aleksandr Bredikhin , Philippe Lalanda , German Vega

Weakly-supervised Temporal Action Localization (WSTAL) aims to localize actions in untrimmed videos using only video-level supervision. Latest WSTAL methods introduce pseudo label learning framework to bridge the gap between…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Qianhan Feng , Wenshuo Li , Tong Lin , Xinghao Chen

Traditional temporal action localization (TAL) methods rely on large amounts of detailed annotated data, whereas few-shot TAL reduces this dependence by using only a few training samples to identify unseen action categories. However,…

计算机视觉与模式识别 · 计算机科学 2025-12-29 Mengshi Qi , Hongwei Ji , Wulian Yun , Xianlin Zhang , Huadong Ma

Deep motion forecasting models have achieved great success when trained on a massive amount of data. Yet, they often perform poorly when training data is limited. To address this challenge, we propose a transfer learning approach for…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Parth Kothari , Danya Li , Yuejiang Liu , Alexandre Alahi

With video-level labels, weakly supervised temporal action localization (WTAL) applies a localization-by-classification paradigm to detect and classify the action in untrimmed videos. Due to the characteristic of classification,…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Ziqiang Li , Yongxin Ge , Jiaruo Yu , Zhongming Chen

Temporal action detection (TAD) aims to determine the semantic label and the temporal interval of every action instance in an untrimmed video. It is a fundamental and challenging task in video understanding. Previous methods tackle this…

计算机视觉与模式识别 · 计算机科学 2022-08-12 Xiaolong Liu , Qimeng Wang , Yao Hu , Xu Tang , Shiwei Zhang , Song Bai , Xiang Bai

Human Activity Recognition is a foundational task in pervasive computing. While recent advances in self-supervised learning and transformer-based architectures have significantly improved HAR performance, adapting large pretrained models to…

机器学习 · 计算机科学 2025-12-23 Irina Seregina , Philippe Lalanda , German Vega