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Anomaly inspection plays an important role in industrial manufacture. Existing anomaly inspection methods are limited in their performance due to insufficient anomaly data. Although anomaly generation methods have been proposed to augment…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Teng Hu , Jiangning Zhang , Ran Yi , Yuzhen Du , Xu Chen , Liang Liu , Yabiao Wang , Chengjie Wang

In many anomaly detection tasks, where anomalous data rarely appear and are difficult to collect, training using only normal data is important. Although it is possible to manually create anomalous data using prior knowledge, they may be…

Machine Learning · Computer Science 2022-05-10 Hironori Murase , Kenji Fukumizu

We introduce AgentSynth, a scalable and cost-efficient pipeline for automatically synthesizing high-quality tasks and trajectory datasets for generalist computer-use agents. Leveraging information asymmetry, AgentSynth constructs subtasks…

Computation and Language · Computer Science 2026-03-03 Jingxu Xie , Dylan Xu , Xuandong Zhao , Dawn Song

Anomaly inspection plays a vital role in industrial manufacturing, but the scarcity of anomaly samples significantly limits the effectiveness of existing methods in tasks such as localization and classification. While several anomaly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Yilin Lu , Jianghang Lin , Linhuang Xie , Kai Zhao , Yansong Qu , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

Synthesizing realistic and diverse anomalous samples from limited data is vital for robust model generalization. However, existing methods struggle to reconcile fidelity and diversity, often hampered by distribution misalignment and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Fuyun Wang , Yuanzhi Wang , Xu Guo , Sujia Huang , Tong Zhang , Dan Wang , Hui Yan , Xin Liu , Zhen Cui

Industrial anomaly detection (IAD) is challenging due to the subtle and highly localized nature of many defects, which single-pass vision--language models (VLMs) often fail to capture. Moreover, existing approaches lack mechanisms to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Junwen Miao , Penghui Du , Yingying Fan , Yi Liu , Yu Wang , Runze He , Lida Huang , Yan Wang

Unsupervised anomaly detection is a daunting task, as it relies solely on normality patterns from the training data to identify unseen anomalies during testing. Recent approaches have focused on leveraging domain-specific transformations or…

Machine Learning · Computer Science 2024-09-17 Hyuntae Kim , Changhee Lee

We propose Anomagic, a zero-shot anomaly generation method that produces semantically coherent anomalies without requiring any exemplar anomalies. By unifying both visual and textual cues through a crossmodal prompt encoding scheme,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Yuxin Jiang , Wei Luo , Hui Zhang , Qiyu Chen , Haiming Yao , Weiming Shen , Yunkang Cao

In this study, a new Anomaly Detection (AD) approach for industrial and medical images is proposed. This method leverages the theoretical strengths of unsupervised learning and the data availability of both normal and abnormal classes.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-24 Arnaud Bougaham , Valentin Delchevalerie , Mohammed El Adoui , Benoît Frénay

Synthetic data provides a promising approach to address data scarcity for training machine learning models; however, adoption without proper quality assessments may introduce artifacts, distortions, and unrealistic features that compromise…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Rucha Deshpande , Tahsin Rahman , Miguel Lago , Adarsh Subbaswamy , Jana G. Delfino , Ghada Zamzmi , Elim Thompson , Aldo Badano , Seyed Kahaki

Industrial visual anomaly detection (VAD) methods are typically trained on normal samples only, yet performance improves substantially when even limited anomalous data is available. Existing anomaly generation approaches either require real…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Jinwei Hu , Francesco Borsatti , Arianna Stropeni , Davide Dalle Pezze , Manuel Barusco , Gian Antonio Susto

Industrial anomaly detection is a critical component of modern manufacturing, yet the scarcity of defective samples restricts traditional detection methods to scenario-specific applications. Although Vision-Language Models (VLMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Yanhui Li , Yunkang Cao , Chengliang Liu , Yuan Xiong , Xinghui Dong , Chao Huang

Recent advances in anomaly generation approaches alleviate the effect of data insufficiency on task of anomaly localization. While effective, most of them learn multiple large generative models on different datasets and cumbersome anomaly…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Ying Zhao

Log-based anomaly detection is fundamentally constrained by training data sparsity. Our empirical study reveals that public benchmark datasets cover less than 10% of source code log templates. Consequently, models frequently misclassify…

Software Engineering · Computer Science 2026-04-14 Xinyu Li , Yintong Huo , Chenxi Mao , Shiwen Shan , Yuxin Su , Yanlin Wang , Zibin Zheng

Anomaly awareness is an essential capability for safety-critical applications such as autonomous driving. While recent progress of robotics and computer vision has enabled anomaly detection for image classification, anomaly detection on…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Guan-Rong Lu , Yueh-Cheng Liu , Tung-I Chen , Hung-Ting Su , Tsung-Han Wu , Winston H. Hsu

Visual anomaly detection (VAD) is crucial in many real-world fields, such as industrial inspection, medical imaging, infrastructure monitoring, and remote sensing. However, the specific anomaly definitions, data modalities, and annotation…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Xi Jiang , Yinjie Zhao , Zesheng Yang , Feng Zheng

Anomaly generation has been widely explored to address the scarcity of anomaly images in real-world data. However, existing methods typically suffer from at least one of the following limitations, hindering their practical deployment: (1)…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Yulim So , Seokho Kang

Agentic reasoning enables large reasoning models (LRMs) to dynamically acquire external knowledge, but yet optimizing the retrieval process remains challenging due to the lack of dense, principled reward signals. In this paper, we introduce…

Artificial Intelligence · Computer Science 2026-02-10 Senkang Hu , Yong Dai , Yuzhi Zhao , Yihang Tao , Yu Guo , Zhengru Fang , Sam Tak Wu Kwong , Yuguang Fang

Supervised classification methods have been widely utilized for the quality assurance of the advanced manufacturing process, such as additive manufacturing (AM) for anomaly (defects) detection. However, since abnormal states (with defects)…

Machine Learning · Computer Science 2022-11-29 Jihoon Chung , Bo Shen , Zhenyu , Kong

Anomaly detection plays a pivotal role in manufacturing quality control, yet its application is constrained by limited abnormal samples and high manual annotation costs. While anomaly synthesis offers a promising solution, existing studies…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Qunyi Zhang , Songan Zhang , Jiaqi Liu , Jinbao Wang , Xiaoning Lei , Guoyang Xie , Guannan Jiang , Zhichao Lu