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相关论文: Out-Of-Distribution Detection In Unsupervised Cont…

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We present a new methodology for detecting out-of-distribution (OOD) images by utilizing norms of the score estimates at multiple noise scales. A score is defined to be the gradient of the log density with respect to the input data. Our…

机器学习 · 计算机科学 2021-03-24 Ahsan Mahmood , Junier Oliva , Martin Styner

In an out-of-distribution (OOD) detection problem, samples of known classes(also called in-distribution classes) are used to train a special classifier. In testing, the classifier can (1) classify the test samples of known classes to their…

计算机视觉与模式识别 · 计算机科学 2023-02-06 Sepideh Esmaeilpour , Bing Liu , Eric Robertson , Lei Shu

While reinforcement learning (RL) algorithms have been successfully applied across numerous sequential decision-making problems, their generalization to unforeseen testing environments remains a significant concern. In this paper, we study…

机器学习 · 计算机科学 2024-04-11 Linas Nasvytis , Kai Sandbrink , Jakob Foerster , Tim Franzmeyer , Christian Schroeder de Witt

Novelty detection aims to automatically identify out-of-distribution (OOD) data, without any prior knowledge of them. It is a critical step in data monitoring, behavior analysis and other applications, helping enable continual learning in…

机器学习 · 计算机科学 2021-12-21 Jingbo Sun , Li Yang , Jiaxin Zhang , Frank Liu , Mahantesh Halappanavar , Deliang Fan , Yu Cao

Out-of-distribution (OOD) detection is a critical task for safe deployment of learning systems in the open world setting. In this work, we investigate the use of feature density estimation via normalizing flows for OOD detection and present…

计算机视觉与模式识别 · 计算机科学 2024-05-01 Evan D. Cook , Marc-Antoine Lavoie , Steven L. Waslander

Continual learning (CL) is an important technique to allow artificial neural networks to work in open environments. CL enables a system to learn new tasks without severe interference to its performance on old tasks, i.e., overcome the…

机器学习 · 计算机科学 2024-07-08 Liangxuan Guo , Yang Chen , Shan Yu

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

Out-of-distribution (OOD) detection is an indispensable aspect of secure AI when deploying machine learning models in real-world applications. Previous paradigms either explore better scoring functions or utilize the knowledge of outliers…

机器学习 · 计算机科学 2023-06-07 Jianing Zhu , Hengzhuang Li , Jiangchao Yao , Tongliang Liu , Jianliang Xu , Bo Han

Out-of-Distribution (OoD) detection aims to justify whether a given sample is from the training distribution of the classifier-under-protection, i.e., In-Distribution (InD), or from OoD. Diffusion Models (DMs) are recently utilized in OoD…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Kun Fang , Qinghua Tao , Zuopeng Yang , Xiaolin Huang , Jie Yang

Out-of-distribution (OOD) learning often relies heavily on statistical approaches or predefined assumptions about OOD data distributions, hindering their efficacy in addressing multifaceted challenges of OOD generalization and OOD detection…

机器学习 · 计算机科学 2024-08-16 Haoyue Bai , Xuefeng Du , Katie Rainey , Shibin Parameswaran , Yixuan Li

Out-of-distribution (OOD) prediction remains a significant challenge in machine learning, particularly for tabular data where traditional methods often fail to generalize beyond their training distribution. This paper introduces Tabular…

机器学习 · 计算机科学 2025-05-21 Achmad Ginanjar , Xue Li , Priyanka Singh , Wen Hua

Out-of-Distribution (OOD) detection is critical for safe deployment; however, existing detectors often struggle to generalize across datasets of varying scales and model architectures, and some can incur high computational costs in…

机器学习 · 计算机科学 2025-04-04 Litian Liu , Yao Qin

Out-of-distribution (OOD) detection is essential for building reliable AI systems, as models that produce outputs for invalid inputs cannot be trusted. Although deep learning (DL) is often assumed to outperform traditional machine learning…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Jihyeon Baek , Seunghoon Lee , Gitaek Kwon , Doohyun Park

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

Image classification models deployed in the real world may receive inputs outside the intended data distribution. For critical applications such as clinical decision making, it is important that a model can detect such out-of-distribution…

计算机视觉与模式识别 · 计算机科学 2021-07-07 Christoph Berger , Magdalini Paschali , Ben Glocker , Konstantinos Kamnitsas

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

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

Detecting out-of-distribution (OOD) inputs is critical for safely deploying deep learning models in the real world. Existing approaches for detecting OOD examples work well when evaluated on benign in-distribution and OOD samples. However,…

机器学习 · 计算机科学 2021-12-10 Jiefeng Chen , Yixuan Li , Xi Wu , Yingyu Liang , Somesh Jha

Out-of-distribution (OOD) detection is critical for ensuring the reliability of deep learning systems, particularly in safety-critical applications. Likelihood-based deep generative models have historically faced criticism for their…

Detecting out-of-distribution (OOD) data is a fundamental challenge in the deployment of machine learning models. From a security standpoint, this is particularly important because OOD test data can result in misleadingly confident yet…

机器学习 · 计算机科学 2025-02-25 Onat Gungor , Amanda Sofie Rios , Nilesh Ahuja , Tajana Rosing