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We present a self-supervised approach for learning video representations using temporal video alignment as a pretext task, while exploiting both frame-level and video-level information. We leverage a novel combination of temporal alignment…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Sanjay Haresh , Sateesh Kumar , Huseyin Coskun , Shahram Najam Syed , Andrey Konin , Muhammad Zeeshan Zia , Quoc-Huy Tran

The development of fair and ethical AI systems requires careful consideration of bias mitigation, an area often overlooked or ignored. In this study, we introduce a novel and efficient approach for addressing biases called Targeted Data…

Machine Learning · Computer Science 2023-08-23 Agnieszka Mikołajczyk-Bareła , Maria Ferlin , Michał Grochowski

Class-incremental learning is dedicated to the development of deep learning models that are capable of acquiring new knowledge while retaining previously learned information. Most methods focus on balanced data distribution for each task,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Linjie Li , Zhenyu Wu , Jiaming Liu , Yang Ji

This work presents a self-supervised learning framework named TeG to explore Temporal Granularity in learning video representations. In TeG, we sample a long clip from a video and a short clip that lies inside the long clip. We then extract…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Rui Qian , Yeqing Li , Liangzhe Yuan , Boqing Gong , Ting Liu , Matthew Brown , Serge Belongie , Ming-Hsuan Yang , Hartwig Adam , Yin Cui

Adversarial examples have revealed the vulnerability of deep learning models and raised serious concerns about information security. The transfer-based attack is a hot topic in black-box attacks that are practical to real-world scenarios…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Jian-Wei Li , Wen-Ze Shao

Temporal human action detection aims to identify and localize action segments within untrimmed videos, serving as a pivotal task in video understanding. Despite the progress achieved by prior architectures like CNN and Transformer models,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Yicheng Qiu , Keiji Yanai

Recently, Temporal Graph Neural Networks (TGNNs) have demonstrated state-of-the-art performance in various high-impact applications, including fraud detection and content recommendation. Despite the success of TGNNs, they are prone to the…

Machine Learning · Computer Science 2024-11-26 Gangda Deng , Hongkuan Zhou , Hanqing Zeng , Yinglong Xia , Christopher Leung , Jianbo Li , Rajgopal Kannan , Viktor Prasanna

Recent works have demonstrated convolutional neural networks are vulnerable to adversarial examples, i.e., inputs to machine learning models that an attacker has intentionally designed to cause the models to make a mistake. To improve the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Xianxu Hou , Jingxin Liu , Bolei Xu , Xiaolong Wang , Bozhi Liu , Guoping Qiu

Adversarial perturbations pose a significant threat to deep learning models. Adversarial Training (AT), the predominant defense method, faces challenges of high computational costs and a degradation in standard performance. While data…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Wang Yu-Hang , Shiwei Li , Jianxiang Liao , Li Bohan , Jian Liu , Wenfei Yin

Understanding how neuronal networks reorganize in response to external stimuli and give rise to behavior is a central challenge in neuroscience and artificial intelligence. However, existing methods often fail to capture the evolving…

Neurons and Cognition · Quantitative Biology 2025-06-02 Moein Khajehnejad , Forough Habibollahi , Ahmad Khajehnejad , Chris French , Brett J. Kagan , Adeel Razi

By injecting adversarial examples into training data, adversarial training is promising for improving the robustness of deep learning models. However, most existing adversarial training approaches are based on a specific type of adversarial…

Machine Learning · Computer Science 2019-03-18 Chuanbiao Song , Kun He , Liwei Wang , John E. Hopcroft

Adversarial training has been widely acknowledged as the most effective method to improve the adversarial robustness against adversarial examples for Deep Neural Networks (DNNs). So far, most existing works focus on enhancing the overall…

Machine Learning · Computer Science 2023-03-28 Zeming Wei , Yifei Wang , Yiwen Guo , Yisen Wang

Despite its remarkable success in zero-shot image-text matching, CLIP remains highly vulnerable to adversarial perturbations on images. As adversarial fine-tuning is prohibitively costly, recent works explore various test-time defense…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Linxiang Su , András Balogh

Deep neural networks, especially transformer-based architectures, have achieved remarkable success in semantic segmentation for environmental perception. However, existing models process video frames independently, thus failing to leverage…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Serin Varghese , Kevin Ross , Fabian Hueger , Kira Maag

In reinforcement learning, the graph Laplacian has proved to be a valuable tool in the task-agnostic setting, with applications ranging from skill discovery to reward shaping. Recently, learning the Laplacian representation has been framed…

Recent studies reveal that Convolutional Neural Networks (CNNs) are typically vulnerable to adversarial attacks, which pose a threat to security-sensitive applications. Many adversarial defense methods improve robustness at the cost of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Tao Wang , Ruixin Zhang , Xingyu Chen , Kai Zhao , Xiaolin Huang , Yuge Huang , Shaoxin Li , Jilin Li , Feiyue Huang

Despite the success of input transformation-based attacks on boosting adversarial transferability, the performance is unsatisfying due to the ignorance of the discrepancy across models. In this paper, we propose a simple but effective…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Donghua Wang , Wen Yao , Tingsong Jiang , Xiaohu Zheng , Junqi Wu , Xiaoqian Chen

Temporal action detection (TAD) is a fundamental video understanding task that aims to identify human actions and localize their temporal boundaries in videos. Although this field has achieved remarkable progress in recent years, further…

Temporal graphs exhibit dynamic interactions between nodes over continuous time, whose topologies evolve with time elapsing. The whole temporal neighborhood of nodes reveals the varying preferences of nodes. However, previous works usually…

Machine Learning · Computer Science 2023-04-18 Tongya Zheng , Xinchao Wang , Zunlei Feng , Jie Song , Yunzhi Hao , Mingli Song , Xingen Wang , Xinyu Wang , Chun Chen

We present a novel framework, Action Progression Network (APN), for temporal action detection (TAD) in videos. The framework locates actions in videos by detecting the action evolution process. To encode the action evolution, we quantify a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Chongkai Lu , Man-Wai Mak , Ruimin Li , Zheru Chi , Hong Fu