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It is important to quantify the uncertainty of input samples, especially in mission-critical domains such as autonomous driving and healthcare, where failure predictions on out-of-distribution (OOD) data are likely to cause big problems.…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Yong Hyun Ahn , Gyeong-Moon Park , Seong Tae Kim

Machine learning methods such as deep neural networks (DNNs), despite their success across different domains, are known to often generate incorrect predictions with high confidence on inputs outside their training distribution. The…

机器学习 · 计算机科学 2022-01-10 Ramneet Kaur , Susmit Jha , Anirban Roy , Sangdon Park , Edgar Dobriban , Oleg Sokolsky , Insup Lee

Reliable out-of-distribution (OOD) detection is a critical requirement for the safe deployment of machine learning systems. Despite recent progress, state-of-the-art OOD detectors are highly susceptible to adversarial attacks, which…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Maria Stoica , Abdelrahman Hekal , Alessio Lomuscio

Recently, Out-of-distribution (OOD) detection in dynamic graphs, which aims to identify whether incoming data deviates from the distribution of the in-distribution (ID) training set, has garnered considerable attention in security-sensitive…

机器学习 · 计算机科学 2025-06-16 Nan Sun , Xixun Lin , Zhiheng Zhou , Yanmin Shang , Zhenlin Cheng , Yanan Cao

Out-of-distribution (OOD) detection is crucial for ensuring the reliability and safety of machine learning models in real-world applications, where they frequently face data distributions unseen during training. Despite progress, existing…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Reihaneh Zohrabi , Hosein Hasani , Mahdieh Soleymani Baghshah , Anna Rohrbach , Marcus Rohrbach , Mohammad Hossein Rohban

Recent works demonstrate the effectiveness of diffusion models as unsupervised solvers for inverse imaging problems. Sparse-view computed tomography (CT) has greatly benefited from these advancements, achieving improved generalization…

图像与视频处理 · 电气工程与系统科学 2025-05-28 Ezgi Demircan-Tureyen , Felix Lucka , Tristan van Leeuwen

Discriminative neural networks offer little or no performance guarantees when deployed on data not generated by the same process as the training distribution. On such out-of-distribution (OOD) inputs, the prediction may not only be…

Existing prompt learning methods have shown certain capabilities in Out-of-Distribution (OOD) detection, but the lack of OOD images in the target dataset in their training can lead to mismatches between OOD images and In-Distribution (ID)…

计算机视觉与模式识别 · 计算机科学 2024-04-05 Tianqi Li , Guansong Pang , Xiao Bai , Wenjun Miao , Jin Zheng

Out-of-distribution (OOD) detection is essential for the reliable and safe deployment of machine learning systems in the real world. Great progress has been made over the past years. This paper presents the first review of recent advances…

计算与语言 · 计算机科学 2023-12-29 Hao Lang , Yinhe Zheng , Yixuan Li , Jian Sun , Fei Huang , Yongbin Li

Out-of-distribution (OOD) detection is indispensable for machine learning models deployed in the open world. Recently, the use of an auxiliary outlier dataset during training (also known as outlier exposure) has shown promising performance.…

机器学习 · 计算机科学 2022-06-29 Yifei Ming , Ying Fan , Yixuan Li

Out-of-distribution (OOD) detection has recently gained substantial attention due to the importance of identifying out-of-domain samples in reliability and safety. Although OOD detection methods have advanced by a great deal, they are still…

计算机视觉与模式识别 · 计算机科学 2022-10-03 Mohammad Azizmalayeri , Arshia Soltani Moakhar , Arman Zarei , Reihaneh Zohrabi , Mohammad Taghi Manzuri , Mohammad Hossein Rohban

Unsupervised continual learning aims to learn new tasks incrementally without requiring human annotations. However, most existing methods, especially those targeted on image classification, only work in a simplified scenario by assuming all…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Jiangpeng He , Fengqing Zhu

We propose a simple, efficient, and accurate method for detecting out-of-distribution (OOD) data for trained neural networks. We propose a novel descriptor, HAct - activation histograms, for OOD detection, that is, probability distributions…

机器学习 · 计算机科学 2023-10-19 Sudeepta Mondal , Ganesh Sundaramoorthi

The primary goal of out-of-distribution (OOD) detection tasks is to identify inputs with semantic shifts, i.e., if samples from novel classes are absent in the in-distribution (ID) dataset used for training, we should reject these OOD…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Xingming Long , Jie Zhang , Shiguang Shan , Xilin Chen

Out-of-distribution (OOD) detection aims to identify inputs that differ from the training distribution in order to reduce unreliable predictions by deep neural networks. Among post-hoc feature-space approaches, OOD detection is commonly…

机器学习 · 计算机科学 2026-03-25 Mohamed Bahi Yahiaoui , Geoffrey Daniel , Loïc Giraldi , Jérémie Bruyelle , Julyan Arbel

Out of distribution (OOD) detection is a crucial part of making machine learning systems robust. The ImageNet-O dataset is an important tool in testing the robustness of ImageNet trained deep neural networks that are widely used across a…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Anugya Srivastava , Shriya Jain , Mugdha Thigle

Advancements in synthesized speech have created a growing threat of impersonation, making it crucial to develop deepfake algorithm recognition. One significant aspect is out-of-distribution (OOD) detection, which has gained notable…

音频与语音处理 · 电气工程与系统科学 2024-06-05 Renmingyue Du , Jixun Yao , Qiuqiang Kong , Yin Cao

Recent research underscores the pivotal role of the Out-of-Distribution (OOD) feature representation field scale in determining the efficacy of models in OOD detection. Consequently, the adoption of model ensembles has emerged as a…

机器学习 · 计算机科学 2024-08-19 Chenhui Xu , Fuxun Yu , Zirui Xu , Nathan Inkawhich , Xiang Chen

Our work investigates out-of-distribution (OOD) detection as a neural network output explanation problem. We learn a heatmap representation for detecting OOD images while visualizing in- and out-of-distribution image regions at the same…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Julia Hornauer , Vasileios Belagiannis

The quantification of uncertainty is important for the adoption of machine learning, especially to reject out-of-distribution (OOD) data back to human experts for review. Yet progress has been slow, as a balance must be struck between…

机器学习 · 计算机科学 2022-09-12 Derek Everett , Andre T. Nguyen , Luke E. Richards , Edward Raff