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Detecting out-of-distribution (OOD) samples is a critical task for reliable machine learning. However, it becomes particularly challenging when the models are trained on long-tailed datasets, as the models often struggle to distinguish…

机器学习 · 计算机科学 2024-08-21 Dong Geun Shin , Hye Won Chung

The distribution of a neural network's latent representations has been successfully used to detect out-of-distribution (OOD) data. This work investigates whether this distribution moreover correlates with a model's epistemic uncertainty,…

Most classification and segmentation datasets assume a closed-world scenario in which predictions are expressed as distribution over a predetermined set of visual classes. However, such assumption implies unavoidable and often unnoticeable…

计算机视觉与模式识别 · 计算机科学 2018-10-02 Petra Bevandić , Ivan Krešo , Marin Oršić , Siniša Šegvić

Out-of-distribution (OOD) generalisation is challenging because it involves not only learning from empirical data, but also deciding among various notions of generalisation, e.g., optimising the average-case risk, worst-case risk, or…

机器学习 · 计算机科学 2024-05-31 Anurag Singh , Siu Lun Chau , Shahine Bouabid , Krikamol Muandet

Detecting and rejecting unknown out-of-distribution (OOD) samples is critical for deployed neural networks to void unreliable predictions. In real-world scenarios, however, the efficacy of existing OOD detection methods is often impeded by…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Kai Liu , Zhihang Fu , Sheng Jin , Chao Chen , Ze Chen , Rongxin Jiang , Fan Zhou , Yaowu Chen , Jieping Ye

Deep neural networks (DNNs) have become the de facto learning mechanism in different domains. Their tendency to perform unreliably on out-of-distribution (OOD) inputs hinders their adoption in critical domains. Several approaches have been…

机器学习 · 计算机科学 2020-06-26 Vahdat Abdelzad , Krzysztof Czarnecki , Rick Salay

Deep neural networks for image classification only learn to map in-distribution inputs to their corresponding ground truth labels in training without differentiating out-of-distribution samples from in-distribution ones. This results from…

机器学习 · 计算机科学 2023-08-29 Zhilin Zhao , Longbing Cao , Kun-Yu Lin

Current deep learning solutions are well known for not informing whether they can reliably classify an example during inference. One of the most effective ways to build more reliable deep learning solutions is to improve their performance…

机器学习 · 计算机科学 2022-08-09 David Macêdo

Out-of-distribution (OOD) detection has recently received much attention from the machine learning community due to its importance in deploying machine learning models in real-world applications. In this paper we propose an uncertainty…

机器学习 · 计算机科学 2022-06-28 Xiongjie Chen , Yunpeng Li , Yongxin Yang

The question whether inputs are valid for the problem a neural network is trying to solve has sparked interest in out-of-distribution (OOD) detection. It is widely assumed that Bayesian neural networks (BNNs) are well suited for this task,…

机器学习 · 计算机科学 2022-02-22 Francesco D'Angelo , Christian Henning

Detecting out-of-distribution (OOD) data is essential for safe deployment of deep neural networks (DNNs). This problem becomes particularly challenging in the presence of long-tailed in-distribution (ID) datasets, often leading to high…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Nimeshika Udayangani , Hadi M. Dolatabadi , Sarah Erfani , Christopher Leckie

Detecting out-of-distribution (OOD) samples is vital for developing machine learning based models for critical safety systems. Common approaches for OOD detection assume access to some OOD samples during training which may not be available…

机器学习 · 计算机科学 2021-10-19 Koby Bibas , Meir Feder , Tal Hassner

Deep neural networks have demonstrated great generalization capabilities for tasks whose training and test sets are drawn from the same distribution. Nevertheless, out-of-distribution (OOD) detection remains a challenging task that has…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Brian K. S. Isaac-Medina , Toby P. Breckon

In the dynamic realms of machine learning and deep learning, the robustness and reliability of models are paramount, especially in critical real-world applications. A fundamental challenge in this sphere is managing Out-of-Distribution…

机器学习 · 计算机科学 2024-03-07 Yingrui Ji , Yao Zhu , Zhigang Li , Jiansheng Chen , Yunlong Kong , Jingbo Chen

In many real-world settings, machine learning models need to identify user inputs that are out-of-domain (OOD) so as to avoid performing wrong actions. This work focuses on a challenging case of OOD detection, where no labels for in-domain…

计算与语言 · 计算机科学 2022-03-23 Di Jin , Shuyang Gao , Seokhwan Kim , Yang Liu , Dilek Hakkani-Tur

In real-world applications, machine learning models must reliably detect Out-of-Distribution (OoD) samples to prevent unsafe decisions. Current OoD detection methods often rely on analyzing the logits or the embeddings of the penultimate…

机器学习 · 计算机科学 2025-02-19 Gianluca Guglielmo , Marc Masana

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…

计算机视觉与模式识别 · 计算机科学 2024-08-22 Armando Zhu , Jiabei Liu , Keqin Li , Shuying Dai , Bo Hong , Peng Zhao , Changsong Wei

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

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…

计算机视觉与模式识别 · 计算机科学 2025-11-17 Zhixia He , Chen Zhao , Minglai Shao , Xintao Wu , Xujiang Zhao , Dong Li , Qin Tian , Linlin Yu

Out-of-distribution (OOD) detection is a critical task for the safe deployment of machine learning models in the real world. Existing prototype-based representation learning methods have demonstrated exceptional performance. Specifically,…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Ningkang Peng , JiuTao Zhou , Yuhao Zhang , Xiaoqian Peng , Qianfeng Yu , Linjing Qian , Tingyu Lu , Yi Chen , Yanhui Gu