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Text anomaly detection is crucial for identifying spam, misinformation, and offensive language in natural language processing tasks. Despite the growing adoption of embedding-based methods, their effectiveness and generalizability across…

Computation and Language · Computer Science 2025-05-26 Yang Cao , Sikun Yang , Chen Li , Haolong Xiang , Lianyong Qi , Bo Liu , Rongsheng Li , Ming Liu

Video Anomaly Detection (VAD) aims to automatically analyze spatiotemporal patterns in surveillance videos collected from open spaces to detect anomalous events that may cause harm, such as fighting, stealing, and car accidents. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Yang Liu , Siao Liu , Xiaoguang Zhu , Jielin Li , Hao Yang , Liangyu Teng , Juncen Guo , Yan Wang , Dingkang Yang , Jing Liu

In modern intelligent video surveillance systems, automatic anomaly detection through computer vision analytics plays a pivotal role which not only significantly increases monitoring efficiency but also reduces the burden on live…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Sijie Zhu , Chen Chen , Waqas Sultani

The rapid advancements in large language models (LLMs) have spurred growing interest in LLM-based video anomaly detection (VAD). However, existing approaches predominantly focus on video-level anomaly question answering or offline…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Zhiwei Yang , Chen Gao , Jing Liu , Peng Wu , Guansong Pang , Mike Zheng Shou

Large vision-language models (LVLMs) are markedly proficient in deriving visual representations guided by natural language. Recent explorations have utilized LVLMs to tackle zero-shot visual anomaly detection (VAD) challenges by pairing…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Jiaqi Zhu , Shaofeng Cai , Fang Deng , Beng Chin Ooi , Junran Wu

Semiconductor manufacturing is a complex, multistage process. Automated visual inspection of Scanning Electron Microscope (SEM) images is indispensable for minimizing equipment downtime and containing costs. Most previous research considers…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Manuel Barusco , Francesco Borsatti , Youssef Ben Khalifa , Davide Dalle Pezze , Gian Antonio Susto

Understanding videos inherently requires reasoning over both visual and auditory information. To properly evaluate Omni-Large Language Models (Omni-LLMs), which are capable of processing multi-modal information including vision and audio,…

Multimedia · Computer Science 2026-05-15 Jianghan Chao , Jianzhang Gao , Wenhui Tan , Yuchong Sun , Ruihua Song , Liyun Ru

Embodied agents can identify and report safety hazards in the home environments. Accurately evaluating their capabilities in home safety inspection tasks is curcial, but existing benchmarks suffer from two key limitations. First, they…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Siyuan Gao , Jiashu Yao , Haoyu Wen , Yuhang Guo , Zeming Liu , Heyan Huang

Anomaly detection in surveillance videos is attracting an increasing amount of attention. Despite the competitive performance of recent methods, they lack theoretical performance analysis, particularly due to the complex deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Keval Doshi , Yasin Yilmaz

Existing Video Anomaly Detection (VAD) methods typically rely on task-specific training, leading to strong domain dependency and high training costs. Moreover, most existing methods output only scalar anomaly scores, providing limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Hyeongmuk Lim , Youngbum Hur

With the rapid development of Multi-modal Large Language Models (MLLMs), a number of diagnostic benchmarks have recently emerged to evaluate the comprehension capabilities of these models. However, most benchmarks predominantly assess…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Kunchang Li , Yali Wang , Yinan He , Yizhuo Li , Yi Wang , Yi Liu , Zun Wang , Jilan Xu , Guo Chen , Ping Luo , Limin Wang , Yu Qiao

Artificial Intelligence (AI) is revolutionizing scientific research, yet its growing integration into laboratory environments presents critical safety challenges. Large language models (LLMs) and vision language models (VLMs) now assist in…

Zero-shot anomaly detection (ZSAD) recognizes and localizes anomalies in previously unseen objects by establishing feature mapping between textual prompts and inspection images, demonstrating excellent research value in flexible industrial…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Huilin Deng , Hongchen Luo , Wei Zhai , Yang Cao , Yu Kang

Video anomaly detection (VAD) identifies suspicious events in videos, which is critical for crime prevention and homeland security. In this paper, we propose a simple but highly effective VAD method that relies on attribute-based…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Tal Reiss , Yedid Hoshen

Video anomaly detection (VAD) has rapidly advanced by recent development of Vision-Language Models (VLMs). While these models offer superior zero-shot detection capabilities, their immense computational cost and unstable visual grounding…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Yue Zheng , Xiufang Shi , Jiming Chen , Yuanchao Shu

Recent advances in Video Large Language Models (Video-LLMs) have demonstrated their great potential in general-purpose video understanding. To verify the significance of these models, a number of benchmarks have been proposed to diagnose…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Ye Liu , Zongyang Ma , Zhongang Qi , Yang Wu , Ying Shan , Chang Wen Chen

Anomaly detection and localization in visual data, including images and videos, are crucial in machine learning and real-world applications. Despite rapid advancements in visual anomaly detection (VAD), interpreting these often black-box…

Machine Learning · Computer Science 2025-08-19 Yizhou Wang , Dongliang Guo , Sheng Li , Octavia Camps , Yun Fu

The emergence of Large Vision-Language Models (LVLMs) has significantly advanced video understanding capabilities. However, existing benchmarks focus predominantly on coarse-grained tasks such as action segmentation, classification,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Aditya Chetan , Eric Cai , Peeyush Kushwaha , Bharath Raj Nagoor Kani , Utkarsh Mall , Qianqian Wang , Noah Snavely , Bharath Hariharan

Video anomaly detection (VAD) has been intensively studied for years because of its potential applications in intelligent video systems. Existing unsupervised VAD methods tend to learn normality from training sets consisting of only normal…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Mengyang Zhao , Xinhua Zeng , Yang Liu , Jing Liu , Di Li , Xing Hu , Chengxin Pang

Large multimodal models (LMMs) have recently gained attention due to their effectiveness to understand and generate descriptions of visual content. Most existing LMMs are in English language. While few recent works explore multilingual…

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