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Pretrained Transformers achieve remarkable performance when training and test data are from the same distribution. However, in real-world scenarios, the model often faces out-of-distribution (OOD) instances that can cause severe semantic…

计算与语言 · 计算机科学 2022-01-24 Wenxuan Zhou , Fangyu Liu , Muhao Chen

Out-of-Distribution (OOD) detection is essential for the trustworthiness of AI systems. Methods using prior information (i.e., subspace-based methods) have shown effective performance by extracting information geometry to detect OOD data…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Kaiyu Guo , Zijian Wang , Tan Pan , Brian C. Lovell , Mahsa Baktashmotlagh

Efficient and effective Out-of-Distribution (OOD) detection is essential for the safe deployment of AI systems. Existing feature space methods, while effective, often incur significant computational overhead due to their reliance on…

机器学习 · 计算机科学 2024-06-05 Litian Liu , Yao Qin

Generalization to out-of-distribution (OOD) data is one of the central problems in modern machine learning. Recently, there is a surge of attempts to propose algorithms that mainly build upon the idea of extracting invariant features.…

机器学习 · 计算机科学 2021-11-09 Haotian Ye , Chuanlong Xie , Tianle Cai , Ruichen Li , Zhenguo Li , Liwei Wang

The deployment of machine learning solutions in real-world scenarios often involves addressing the challenge of out-of-distribution (OOD) detection. While significant efforts have been devoted to OOD detection in classical supervised…

计算机视觉与模式识别 · 计算机科学 2023-11-10 Loïc Le Bescond , Maria Vakalopoulou , Stergios Christodoulidis , Fabrice André , Hugues Talbot

State-of-the-art Object Detection (OD) methods predominantly operate under a closed-world assumption, where test-time categories match those encountered during training. However, detecting and localizing unknown objects is crucial for…

计算机视觉与模式识别 · 计算机科学 2025-06-18 Daniel Montoya , Aymen Bouguerra , Alexandra Gomez-Villa , Fabio Arnez

The core of out-of-distribution (OOD) detection is to learn the in-distribution (ID) representation, which is distinguishable from OOD samples. Previous work applied recognition-based methods to learn the ID features, which tend to learn…

计算机视觉与模式识别 · 计算机科学 2023-04-12 Jingyao Li , Pengguang Chen , Shaozuo Yu , Zexin He , Shu Liu , Jiaya Jia

In addition to accurate scene understanding through precise semantic segmentation of LiDAR point clouds, detecting out-of-distribution (OOD) objects, instances not encountered during training, is essential to prevent the incorrect…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Hanieh Shojaei Miandashti , Claus Brenner

Deep neural networks have attained remarkable performance when applied to data that comes from the same distribution as that of the training set, but can significantly degrade otherwise. Therefore, detecting whether an example is…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Yen-Chang Hsu , Yilin Shen , Hongxia Jin , Zsolt Kira

Out-of-distribution (OOD) detection is essential for ensuring the reliability of deep learning models in medical imaging applications. This work is motivated by the observation that class activation maps (CAMs) for in-distribution (ID) data…

计算机视觉与模式识别 · 计算机科学 2025-05-14 Yu-Jen Chen , Xueyang Li , Yiyu Shi , Tsung-Yi Ho

Out-of-distribution (OOD) detection is a crucial part of deploying machine learning models safely. It has been extensively studied with a plethora of methods developed in the literature. This problem is tackled with an OOD score…

计算机视觉与模式识别 · 计算机科学 2024-01-19 Jingqiu Zhou , Aojun Zhou , Hongsheng Li

Out-of-distribution (OOD) detection is essential for determining when a supervised model encounters inputs that differ meaningfully from its training distribution. While widely studied in classification, OOD detection for regression and…

机器学习 · 统计学 2025-12-16 Min Lu , Hemant Ishwaran

Out-of-distribution (OOD) detection targets to detect and reject test samples with semantic shifts, to prevent models trained on in-distribution (ID) dataset from producing unreliable predictions. Existing works only extract the appearance…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Xiang Fang , Arvind Easwaran , Blaise Genest

Detecting deepfakes has become a critical challenge in Computer Vision and Artificial Intelligence. Despite significant progress in detection techniques, generalizing them to open-set scenarios continues to be a persistent difficulty.…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Luca Maiano , Fabrizio Casadei , Irene Amerini

Out-of-distribution (OOD) detection remains challenging for deep learning models, particularly when test-time OOD samples differ significantly from training outliers. We propose OODD, a novel test-time OOD detection method that dynamically…

计算机视觉与模式识别 · 计算机科学 2025-03-14 Yifeng Yang , Lin Zhu , Zewen Sun , Hengyu Liu , Qinying Gu , Nanyang Ye

Out-of-distribution (OOD) detection is crucial to modern deep learning applications by identifying and alerting about the OOD samples that should not be tested or used for making predictions. Current OOD detection methods have made…

机器学习 · 计算机科学 2023-09-22 Xinheng Wu , Jie Lu , Zhen Fang , Guangquan Zhang

Identifying out-of-distribution (OOD) data at inference time is crucial for many machine learning applications, especially for automation. We present a novel unsupervised semi-parametric framework COMBOOD for OOD detection with respect to…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Magesh Rajasekaran , Md Saiful Islam Sajol , Frej Berglind , Supratik Mukhopadhyay , Kamalika Das

Methods which utilize the outputs or feature representations of predictive models have emerged as promising approaches for out-of-distribution (OOD) detection of image inputs. However, these methods struggle to detect OOD inputs that share…

机器学习 · 计算机科学 2023-02-09 Lily H. Zhang , Rajesh Ranganath

Machine learning models, while progressively advanced, rely heavily on the IID assumption, which is often unfulfilled in practice due to inevitable distribution shifts. This renders them susceptible and untrustworthy for deployment in…

机器学习 · 计算机科学 2024-03-05 Han Yu , Jiashuo Liu , Xingxuan Zhang , Jiayun Wu , Peng Cui

Out-of-distribution (OOD) detection is crucial when deploying deep neural networks in the real world to ensure the reliability and safety of their applications. One main challenge in OOD detection is that neural network models often produce…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Jinlun Ye , Zhuohao Sun , Yiqiao Qiu , Qiu Li , Zhijun Tan , Ruixuan Wang