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Related papers: Zero-Shot Out-of-Distribution Detection with Outli…

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Detecting out-of-distribution (OOD) samples is essential when deploying machine learning models in open-world scenarios. Zero-shot OOD detection, requiring no training on in-distribution (ID) data, has been possible with the advent of…

Machine Learning · Computer Science 2024-06-04 Chentao Cao , Zhun Zhong , Zhanke Zhou , Yang Liu , Tongliang Liu , Bo Han

Out-of-distribution (OOD) detection methods often exploit auxiliary outliers to train model identifying OOD samples, especially discovering challenging outliers from auxiliary outliers dataset to improve OOD detection. However, they may…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Yichen Bai , Zongbo Han , Changqing Zhang , Bing Cao , Xiaoheng Jiang , Qinghua Hu

Out-of-distribution detection (OOD) is a pivotal task for real-world applications that trains models to identify samples that are distributionally different from the in-distribution (ID) data during testing. Recent advances in AI,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Chaohua Li , Enhao Zhang , Chuanxing Geng , Songcan Chen

Out-of-distribution (OOD) detection has seen significant advancements with zero-shot approaches by leveraging the powerful Vision-Language Models (VLMs) such as CLIP. However, prior research works have predominantly focused on enhancing…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Pei-Kang Lee , Jun-Cheng Chen , Ja-Ling Wu

Out-of-Distribution (OOD) detection is a critical task that has garnered significant attention. The emergence of CLIP has spurred extensive research into zero-shot OOD detection, often employing a training-free approach. Current methods…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Haoran Xu , Yanlin Liu , Zizhao Tong , Jiaze Li , Kexue Fu , Yuyang Zhang , Longxiang Gao , Shuaiguang Li , Xingyu Li , Yanran Xu , Changwei Wang

In an out-of-distribution (OOD) detection problem, samples of known classes(also called in-distribution classes) are used to train a special classifier. In testing, the classifier can (1) classify the test samples of known classes to their…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Sepideh Esmaeilpour , Bing Liu , Eric Robertson , Lei Shu

Recent large vision-language models such as CLIP have shown remarkable out-of-distribution (OOD) detection and generalization performance. However, their zero-shot in-distribution (ID) accuracy is often limited for downstream datasets.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Yifei Ming , Yixuan Li

Out-of-distribution (OOD) detection is essential for deploying machine learning models in open-world and safety-critical scenarios, where test inputs may deviate from the training distribution and overconfident predictions on unknown…

Machine Learning · Computer Science 2026-05-28 Fengqiang Wan , Qing-Yuan Jiang , Yang Yang

Detection of out-of-distribution (OOD) samples is crucial for safe real-world deployment of machine learning models. Recent advances in vision language foundation models have made them capable of detecting OOD samples without requiring…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Hao Fu , Naman Patel , Prashanth Krishnamurthy , Farshad Khorrami

Out-of-distribution (OOD) detection is an important building block in trustworthy image recognition systems as unknown classes may arise at test-time. OOD detection methods typically revolve around a single classifier, leading to a split in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Galadrielle Humblot-Renaux , Gianni Franchi , Sergio Escalera , Thomas B. Moeslund

Few-shot OOD detection focuses on recognizing out-of-distribution (OOD) images that belong to classes unseen during training, with the use of only a small number of labeled in-distribution (ID) images. Up to now, a mainstream strategy is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Hao Sun , Rundong He , Zhongyi Han , Zhicong Lin , Yongshun Gong , Yilong Yin

Out-of-distribution (OOD) detection is crucial for model reliability, as it identifies samples from unknown classes and reduces errors due to unexpected inputs. Vision-Language Models (VLMs) such as CLIP are emerging as powerful tools for…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yabin Zhang , Wenjie Zhu , Chenhang He , Lei Zhang

Out-of-distribution (OOD) detection refers to training the model on an in-distribution (ID) dataset to classify whether the input images come from unknown classes. Considerable effort has been invested in designing various OOD detection…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Hualiang Wang , Yi Li , Huifeng Yao , Xiaomeng Li

Out-of-distribution (OOD) detection is critical for ensuring the safety and reliability of machine learning systems, particularly in dynamic and open-world environments. In the vision and text domains, zero-shot OOD detection - which…

Machine Learning · Computer Science 2025-05-20 Haoyan Xu , Zhengtao Yao , Xuzhi Zhang , Ziyi Wang , Langzhou He , Yushun Dong , Philip S. Yu , Mengyuan Li , Yue Zhao

Out-of-distribution (OOD) detection is crucial for deploying robust machine learning models, especially in areas where security is critical. However, traditional OOD detection methods often fail to capture complex data distributions from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Armando Zhu , Jiabei Liu , Keqin Li , Shuying Dai , Bo Hong , Peng Zhao , Changsong Wei

Out-of-distribution (OOD) detection methods have recently become more prominent, serving as a core element in safety-critical autonomous systems. One major purpose of OOD detection is to reject invalid inputs that could lead to…

Machine Learning · Computer Science 2025-10-08 Hong Yang , Qi Yu , Travis Desell

Out-of-distribution (OOD) detection is committed to delineating the classification boundaries between in-distribution (ID) and OOD images. Recent advances in vision-language models (VLMs) have demonstrated remarkable OOD detection…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Zhixia He , Chen Zhao , Minglai Shao , Xintao Wu , Xujiang Zhao , Dong Li , Qin Tian , Linlin Yu

Out-of-distribution (OOD) detection has emerged as a popular technique to enhance the reliability of machine learning models by identifying unexpected inputs from unknown classes. Recent progress in pre-trained vision-language models (VLMs)…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yuanwei Hu , Bo Peng , Yadan Luo , Zhen Fang , Ling Chen , Jie Lu

We present a novel vision-language prompt learning approach for few-shot out-of-distribution (OOD) detection. Few-shot OOD detection aims to detect OOD images from classes that are unseen during training using only a few labeled…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Atsuyuki Miyai , Qing Yu , Go Irie , Kiyoharu Aizawa

As object detectors are increasingly deployed as black-box cloud services or pre-trained models with restricted access to the original training data, the challenge of zero-shot object-level out-of-distribution (OOD) detection arises. This…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Bin Zhang , Xiaoyang Qu , Guokuan Li , Jiguang Wan , Jianzong Wang
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