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Graph Out-of-Distribution (OOD) detection aims to identify whether a test graph deviates from the distribution of graphs observed during training, which is critical for ensuring the reliability of Graph Neural Networks (GNNs) when deployed…

机器学习 · 计算机科学 2026-02-20 Luzhi Wang , Xuanshuo Fu , He Zhang , Chuang Liu , Xiaobao Wang , Hongbo Liu

Detecting out-of-distribution (OOD) samples is essential for ensuring the reliability of deep neural networks (DNNs) in real-world scenarios. While previous research has predominantly investigated the disparity between in-distribution (ID)…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Yingwen Wu , Tao Li , Xinwen Cheng , Jie Yang , Xiaolin Huang

Out-of-distribution (OOD) detection aims to detect test samples outside the training category space, which is an essential component in building reliable machine learning systems. Existing reviews on OOD detection primarily focus on method…

机器学习 · 计算机科学 2025-08-05 Shuo Lu , Yingsheng Wang , Lijun Sheng , Lingxiao He , Aihua Zheng , Jian Liang

In this study, we propose a three-stage training approach of neural networks for both photometric redshift estimation of galaxies and detection of out-of-distribution (OOD) objects. Our approach comprises supervised and unsupervised…

天体物理仪器与方法 · 物理学 2022-02-04 Joongoo Lee , Min-Su Shin

Deep learning-based approaches have produced models with good insect classification accuracy; Most of these models are conducive for application in controlled environmental conditions. One of the primary emphasis of researchers is to…

Likelihood from a generative model is a natural statistic for detecting out-of-distribution (OoD) samples. However, generative models have been shown to assign higher likelihood to OoD samples compared to ones from the training…

机器学习 · 计算机科学 2019-10-22 Jiaming Song , Yang Song , Stefano Ermon

Most deep-learning-based image classification methods assume that all samples are generated under an independent and identically distributed (IID) setting. However, out-of-distribution (OOD) generalization is more common in practice, which…

机器学习 · 计算机科学 2022-02-24 Xin Guo , Zhengxu Yu , Chao Xiang , Zhongming Jin , Jianqiang Huang , Deng Cai , Xiaofei He , Xian-Sheng Hua

Detecting out-of-distribution (OOD) graphs is crucial for ensuring the safety and reliability of Graph Neural Networks. In unsupervised graph-level OOD detection, models are typically trained using only in-distribution (ID) data, resulting…

机器学习 · 计算机科学 2026-03-03 Li Sun , Lanxu Yang , Jiayu Tian , Bowen Fang , Xiaoyan Yu , Junda Ye , Peng Tang , Hao Peng , Philip S. Yu

Out-of-distribution (OOD) detection is a critical task for deploying machine learning models in the open world. Distance-based methods have demonstrated promise, where testing samples are detected as OOD if they are relatively far away from…

机器学习 · 计算机科学 2022-12-09 Yiyou Sun , Yifei Ming , Xiaojin Zhu , Yixuan Li

There is increasing evidence suggesting neural networks' sensitivity to distribution shifts, so that research on out-of-distribution (OOD) generalization comes into the spotlight. Nonetheless, current endeavors mostly focus on Euclidean…

机器学习 · 计算机科学 2024-08-19 Qitian Wu , Hengrui Zhang , Junchi Yan , David Wipf

To detect distribution shifts and improve model safety, many out-of-distribution (OOD) detection methods rely on the predictive uncertainty or features of supervised models trained on in-distribution data. In this paper, we critically…

How can we automatically select an out-of-distribution (OOD) detection model for various underlying tasks? This is crucial for maintaining the reliability of open-world applications by identifying data distribution shifts, particularly in…

机器学习 · 计算机科学 2025-03-03 Yuehan Qin , Yichi Zhang , Yi Nian , Xueying Ding , Yue Zhao

Deep Neural Networks are actively being used in the design of autonomous Cyber-Physical Systems (CPSs). The advantage of these models is their ability to handle high-dimensional state-space and learn compact surrogate representations of the…

机器学习 · 计算机科学 2021-08-27 Shreyas Ramakrishna , Zahra Rahiminasab , Gabor Karsai , Arvind Easwaran , Abhishek Dubey

Out-of-Distribution (OOD) detection is crucial when deploying machine learning models in open-world applications. The core challenge in OOD detection is mitigating the model's overconfidence on OOD data. While recent methods using auxiliary…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Jiankang Chen , Ling Deng , Zhiyong Gan , Wei-Shi Zheng , Ruixuan Wang

In recent years, research on out-of-distribution (OoD) detection for semantic segmentation has mainly focused on road scenes -- a domain with a constrained amount of semantic diversity. In this work, we challenge this constraint and extend…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Silvio Galesso , Philipp Schröppel , Hssan Driss , Thomas Brox

Deep neural networks are known to achieve superior results in classification tasks. However, it has been recently shown that they are incapable to detect examples that are generated by a distribution which is different than the one they…

机器学习 · 计算机科学 2019-12-09 Aristotelis-Angelos Papadopoulos , Nazim Shaikh , Mohammad Reza Rajati

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

Machine learning methods must be trusted to make appropriate decisions in real-world environments, even when faced with out-of-distribution (OOD) samples. Many current approaches simply aim to detect OOD examples and alert the user when an…

机器学习 · 计算机科学 2022-09-13 Randolph Linderman , Jingyang Zhang , Nathan Inkawhich , Hai Li , Yiran Chen

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

Out-of-distribution (OOD) detection plays a crucial role in ensuring the safe deployment of deep neural network (DNN) classifiers. While a myriad of methods have focused on improving the performance of OOD detectors, a critical gap remains…

机器学习 · 计算机科学 2023-06-07 Jihye Choi , Jayaram Raghuram , Ryan Feng , Jiefeng Chen , Somesh Jha , Atul Prakash