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相关论文: A Geometry-Based View of Mahalanobis OOD Detection

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Out-of-distribution (OOD) detection is essential for deploying deep learning models in open-world environments. Existing approaches, such as energy-based scoring and gradient-projection methods, typically rely on high-dimensional…

机器学习 · 统计学 2025-11-04 Zhexiao Huang , Weihao He , Shutao Deng , Junzhe Chen , Chao Yuan , Hongxin Wang , Changsheng Zhou

Unsupervised Anomaly detection (AD) requires building a notion of normalcy, distinguishing in-distribution (ID) and out-of-distribution (OOD) data, using only available ID samples. Recently, large gains were made on this task for the domain…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Mohamed Yousef , Marcel Ackermann , Unmesh Kurup , Tom Bishop

Detecting out-of-distribution (OOD) data is a critical challenge in machine learning due to model overconfidence, often without awareness of their epistemological limits. We hypothesize that ``neural collapse'', a phenomenon affecting…

Out-of-distribution (OoD) detection for data-based programs is a goal of paramount importance. Common approaches in the literature tend to train detectors requiring inside-of-distribution (in-distribution, or IoD) and OoD validation…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Romain Xu-Darme , Julien Girard-Satabin , Darryl Hond , Gabriele Incorvaia , Zakaria Chihani

Supervised learning aims to train a classifier under the assumption that training and test data are from the same distribution. To ease the above assumption, researchers have studied a more realistic setting: out-of-distribution (OOD)…

机器学习 · 计算机科学 2024-04-09 Zhen Fang , Yixuan Li , Feng Liu , Bo Han , Jie Lu

Out-of-distribution (OOD) detection is essential for ensuring the reliability and safety of machine learning systems. In recent years, it has received increasing attention, particularly through post-hoc detection and training-based methods.…

机器学习 · 统计学 2025-11-04 Mouïn Ben Ammar , David Brellmann , Arturo Mendoza , Antoine Manzanera , Gianni Franchi

High-performing out-of-distribution (OOD) detection, both anomaly and novel class, is an important prerequisite for the practical use of classification models. In this paper, we focus on the species recognition task in images concerned with…

计算机视觉与模式识别 · 计算机科学 2024-03-12 L. E. Hogeweg , R. Gangireddy , D. Brunink , V. J. Kalkman , L. Cornelissen , J. W. Kamminga

Deep generative models (DGMs) seem a natural fit for detecting out-of-distribution (OOD) inputs, but such models have been shown to assign higher probabilities or densities to OOD images than images from the training distribution. In this…

机器学习 · 计算机科学 2021-07-20 Lily H. Zhang , Mark Goldstein , Rajesh Ranganath

Out-of-distribution detection is a common issue in deploying vision models in practice and solving it is an essential building block in safety critical applications. Most of the existing OOD detection solutions focus on improving the OOD…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Tomas Vojir , Jan Sochman , Rahaf Aljundi , Jiri Matas

We study simple methods for out-of-distribution (OOD) image detection that are compatible with any already trained classifier, relying on only its predictions or learned representations. Evaluating the OOD detection performance of various…

机器学习 · 计算机科学 2022-07-08 Johnson Kuan , Jonas Mueller

Out-of-Distribution (OOD) generalization, a cornerstone for building robust machine learning models capable of handling data diverging from the training set's distribution, is an ongoing challenge in deep learning. While significant…

机器学习 · 计算机科学 2023-12-05 Sergey Kolesnikov

Unsupervised Anomaly Detection (UAD) methods rely on healthy data distributions to identify anomalies as outliers. In brain MRI, a common approach is reconstruction-based UAD, where generative models reconstruct healthy brain MRIs, and…

图像与视频处理 · 电气工程与系统科学 2024-07-18 Finn Behrendt , Debayan Bhattacharya , Robin Mieling , Lennart Maack , Julia Krüger , Roland Opfer , Alexander Schlaefer

With the availability of large pre-trained models, a modern workflow for building real-world machine learning solutions is to fine-tune such models on a downstream task with a relatively small domain-specific dataset. In such applications,…

机器学习 · 计算机科学 2024-05-28 Lu Tan , Huei Zhou , Yinxiang Huang , Zeming Zheng , Yujiu Yang

Recent works show that the data distribution in a network's latent space is useful for estimating classification uncertainty and detecting Out-of-distribution (OOD) samples. To obtain a well-regularized latent space that is conducive for…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Aishwarya Venkataramanan , Assia Benbihi , Martin Laviale , Cedric Pradalier

Image classification plays a pivotal role across diverse applications, yet challenges persist when models are deployed in real-world scenarios. Notably, these models falter in detecting unfamiliar classes that were not incorporated during…

计算机视觉与模式识别 · 计算机科学 2024-01-03 Butian Xiong , Liguang Zhou , Tin Lun Lam , Yangsheng Xu

Out-of-distribution (OOD) detection recently has drawn attention due to its critical role in the safe deployment of modern neural network architectures in real-world applications. The OOD detectors aim to distinguish samples that lie…

信号处理 · 电气工程与系统科学 2023-06-16 Sabri Mustafa Kahya , Muhammet Sami Yavuz , Eckehard Steinbach

We study the problem of Out-of-Distribution (OOD) detection, that is, detecting whether a learning algorithm's output can be trusted at inference time. While a number of tests for OOD detection have been proposed in prior work, a formal…

机器学习 · 统计学 2023-09-19 Akshayaa Magesh , Venugopal V. Veeravalli , Anirban Roy , Susmit Jha

Out-of-distribution (OOD) detection is crucial for the reliable deployment of machine learning models in real-world scenarios, enabling the identification of unknown samples or objects. A prominent approach to enhance OOD detection…

机器学习 · 统计学 2025-08-05 Heng Gao , Jun Li

We demonstrate that L2 normalization over feature space can produce capable performance for Out-of-Distribution (OoD) detection for some models and datasets. Although it does not demonstrate outright state-of-the-art performance, this…

机器学习 · 计算机科学 2024-02-02 Jarrod Haas , William Yolland , Bernhard Rabus

The complex and dynamic real-world clinical environment demands reliable deep learning (DL) systems. Out-of-distribution (OOD) detection plays a critical role in enhancing the reliability and generalizability of DL models when encountering…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Jiangbei Yue , Darren Treanor , Venkataraman Subramanian , Sharib Ali