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Gaze estimation methods often experience significant performance degradation when evaluated across different domains, due to the domain gap between the testing and training data. Existing methods try to address this issue using various…

计算机视觉与模式识别 · 计算机科学 2024-03-11 Pengwei Yin , Guanzhong Zeng , Jingjing Wang , Di Xie

Temporal Action Proposal (TAP) generation is an important problem, as fast and accurate extraction of semantically important (e.g. human actions) segments from untrimmed videos is an important step for large-scale video analysis. We propose…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Jiyang Gao , Zhenheng Yang , Chen Sun , Kan Chen , Ram Nevatia

Generalizable semantic segmentation aims to perform well on unseen target domains, a critical challenge due to real-world applications requiring high generalizability. Class-wise prototypes, representing class centroids, serve as…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Yuhang Zhang , Zhengyu Zhang , Muxin Liao , Shishun Tian , Wenbin Zou , Lu Zhang , Chen Xu

This paper introduces Gamified Adversarial Prompting (GAP), a framework that crowd-sources high-quality data for visual instruction tuning of large multimodal models. GAP transforms the data collection process into an engaging game,…

人工智能 · 计算机科学 2024-10-10 Shashank Yadav , Rohan Tomar , Garvit Jain , Chirag Ahooja , Shubham Chaudhary , Charles Elkan

Unified, generalizable semantic control in video generation remains a critical open challenge. Existing methods either introduce artifacts by enforcing inappropriate pixel-wise priors from structure-based controls, or rely on…

计算机视觉与模式识别 · 计算机科学 2025-10-27 Yuxuan Bian , Xin Chen , Zenan Li , Tiancheng Zhi , Shen Sang , Linjie Luo , Qiang Xu

Temporal Action Localization (TAL) has experienced remarkable success under the supervised learning paradigm. However, existing TAL methods are rooted in the closed set assumption, which cannot handle the inevitable unknown actions in…

计算机视觉与模式识别 · 计算机科学 2022-03-11 Wentao Bao , Qi Yu , Yu Kong

Recent advances in vision-language foundational models, such as CLIP, have demonstrated significant strides in zero-shot classification. However, the extensive parameterization of models like CLIP necessitates a resource-intensive…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Qijie Wang , Guandu Liu , Bin Wang

Existing temporal action detection (TAD) methods rely on generating an overwhelmingly large number of proposals per video. This leads to complex model designs due to proposal generation and/or per-proposal action instance evaluation and the…

计算机视觉与模式识别 · 计算机科学 2022-08-22 Sauradip Nag , Xiatian Zhu , Yi-Zhe Song , Tao Xiang

Temporal action localization (TAL), which involves recognizing and locating action instances, is a challenging task in video understanding. Most existing approaches directly predict action classes and regress offsets to boundaries, while…

计算机视觉与模式识别 · 计算机科学 2023-09-14 Jiayi Shao , Xiaohan Wang , Ruijie Quan , Junjun Zheng , Jiang Yang , Yi Yang

In this paper, we propose Spatio-TEmporal Progressive (STEP) action detector---a progressive learning framework for spatio-temporal action detection in videos. Starting from a handful of coarse-scale proposal cuboids, our approach…

计算机视觉与模式识别 · 计算机科学 2019-04-22 Xitong Yang , Xiaodong Yang , Ming-Yu Liu , Fanyi Xiao , Larry Davis , Jan Kautz

In this work, we empirically show that updating pretrained LMs (350M, 1.3B, 2.7B) with just a few steps of Gradient Ascent Post-training (GAP) on random, unlabeled text corpora enhances its zero-shot generalization capabilities across…

计算与语言 · 计算机科学 2023-06-13 Dongkeun Yoon , Joel Jang , Sungdong Kim , Minjoon Seo

Temporal action detection aims to locate the boundaries of action in the video. The current method based on boundary matching enumerates and calculates all possible boundary matchings to generate proposals. However, these methods neglect…

计算机视觉与模式识别 · 计算机科学 2021-12-08 Guo Chen , Yin-Dong Zheng , Limin Wang , Tong Lu

Pre-trained vision-language models, such as CLIP, show impressive zero-shot recognition ability and can be easily transferred to specific downstream tasks via prompt tuning, even with limited training data. However, existing prompt tuning…

计算机视觉与模式识别 · 计算机科学 2025-07-18 Yuqi Peng , Pengfei Wang , Jianzhuang Liu , Shifeng Chen

Pretrained cross-modal models, for instance, the most representative CLIP, have recently led to a boom in using pre-trained models for cross-modal zero-shot tasks, considering the generalization properties. However, we analytically discover…

多媒体 · 计算机科学 2024-06-28 Hanyao Wang , Yibing Zhan , Liu Liu , Liang Ding , Yan Yang , Jun Yu

With increasing numbers of vulnerabilities exposed on the internet, autonomous penetration testing (pentesting) has emerged as a promising research area. Reinforcement learning (RL) is a natural fit for studying this topic. However, two key…

机器学习 · 计算机科学 2025-02-12 Shicheng Zhou , Jingju Liu , Yuliang Lu , Jiahai Yang , Yue Zhang , Jie Chen

Self-supervised learning presents a remarkable performance to utilize unlabeled data for various video tasks. In this paper, we focus on applying the power of self-supervised methods to improve semi-supervised action proposal generation.…

计算机视觉与模式识别 · 计算机科学 2021-04-08 Xiang Wang , Shiwei Zhang , Zhiwu Qing , Yuanjie Shao , Changxin Gao , Nong Sang

Video understanding has shown remarkable improvements in recent years, largely dependent on the availability of large scaled labeled datasets. Recent advancements in visual-language models, especially based on contrastive pretraining, have…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Shreyank N Gowda , Boyan Gao , Xiao Gu , Xiaobo Jin

Contrastive Language-Audio Pretraining (CLAP) is pre-trained to associate audio features with human language, making it a natural zero-shot classifier to recognize unseen sound categories. To adapt CLAP to downstream tasks, prior works…

音频与语音处理 · 电气工程与系统科学 2023-09-18 Yiming Li , Xiangdong Wang , Hong Liu

Recent advancements in large-scale pre-training of visual-language models on paired image-text data have demonstrated impressive generalization capabilities for zero-shot tasks. Building on this success, efforts have been made to adapt…

计算机视觉与模式识别 · 计算机科学 2024-01-22 Shahzad Ahmad , Sukalpa Chanda , Yogesh S Rawat

Global Average Pooling (GAP) [4] has been used previously to generate class activation for image classification tasks. The motivation behind SIMILARnet comes from the fact that the convolutional filters possess position information of the…

计算机视觉与模式识别 · 计算机科学 2017-11-09 Arna Ghosh , Biswarup Bhattacharya , Somnath Basu Roy Chowdhury