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Deep neural networks (DNNs) for the semantic segmentation of images are usually trained to operate on a predefined closed set of object classes. This is in contrast to the "open world" setting where DNNs are envisioned to be deployed to.…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Robin Chan , Matthias Rottmann , Hanno Gottschalk

Efficient and effective Out-of-Distribution (OOD) detection is essential for the safe deployment of AI systems. Existing feature space methods, while effective, often incur significant computational overhead due to their reliance on…

机器学习 · 计算机科学 2024-06-05 Litian Liu , Yao Qin

Probabilistic models often use neural networks to control their predictive uncertainty. However, when making out-of-distribution (OOD)} predictions, the often-uncontrollable extrapolation properties of neural networks yield poor uncertainty…

机器学习 · 计算机科学 2022-01-19 Pierre Segonne , Yevgen Zainchkovskyy , Søren Hauberg

Image classification with neural networks (NNs) is widely used in industrial processes, situations where the model likely encounters unknown objects during deployment, i.e., out-of-distribution (OOD) data. Worryingly, NNs tend to make…

机器学习 · 计算机科学 2025-01-14 Arthur Thuy , Dries F. Benoit

Deep neural networks (DNNs) perform well at classifying inputs associated with the classes they have been trained on, which are known as in distribution inputs. However, out-of-distribution (OOD) inputs pose a great challenge to DNNs and…

机器学习 · 计算机科学 2021-02-24 Guy Amit , Moshe Levy , Ishai Rosenberg , Asaf Shabtai , Yuval Elovici

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

Real-world data deviating from the independent and identically distributed (i.i.d.) assumption of in-distribution training data poses security threats to deep networks, thus advancing out-of-distribution (OOD) detection algorithms.…

计算与语言 · 计算机科学 2024-10-31 Yiming Wang , Pei Zhang , Baosong Yang , Derek F. Wong , Zhuosheng Zhang , Rui Wang

Out-of-distribution (OOD) detection is crucial when deploying deep neural networks in the real world to ensure the reliability and safety of their applications. One main challenge in OOD detection is that neural network models often produce…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Jinlun Ye , Zhuohao Sun , Yiqiao Qiu , Qiu Li , Zhijun Tan , Ruixuan Wang

When incorporating deep neural networks into robotic systems, a major challenge is the lack of uncertainty measures associated with their output predictions. Methods for uncertainty estimation in the output of deep object detectors (DNNs)…

计算机视觉与模式识别 · 计算机科学 2019-09-17 Ali Harakeh , Michael Smart , Steven L. Waslander

In this paper, we present a novel approach that combines deep metric learning and synthetic data generation using diffusion models for out-of-distribution (OOD) detection. One popular approach for OOD detection is outlier exposure, where…

计算机视觉与模式识别 · 计算机科学 2024-05-02 Assefa Seyoum Wahd

It is an important problem in trustworthy machine learning to recognize out-of-distribution (OOD) inputs which are inputs unrelated to the in-distribution task. Many out-of-distribution detection methods have been suggested in recent years.…

机器学习 · 计算机科学 2022-06-22 Julian Bitterwolf , Alexander Meinke , Maximilian Augustin , Matthias Hein

Deep neural networks suffer from the overconfidence issue in the open world, meaning that classifiers could yield confident, incorrect predictions for out-of-distribution (OOD) samples. Thus, it is an urgent and challenging task to detect…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Qiuyu Zhu , Guohui Zheng , Yingying Yan

As deep learning methods form a critical part in commercially important applications such as autonomous driving and medical diagnostics, it is important to reliably detect out-of-distribution (OOD) inputs while employing these algorithms.…

机器学习 · 计算机科学 2018-09-12 Apoorv Vyas , Nataraj Jammalamadaka , Xia Zhu , Dipankar Das , Bharat Kaul , Theodore L. Willke

Since deep learning models have been implemented in many commercial applications, it is important to detect out-of-distribution (OOD) inputs correctly to maintain the performance of the models, ensure the quality of the collected data, and…

计算机视觉与模式识别 · 计算机科学 2019-09-10 Qing Yu , Kiyoharu Aizawa

Out-of-distribution (OOD) detection is essential for ensuring the reliability of deep learning models operating in open-world scenarios. Current OOD detectors mainly rely on statistical models to identify unusual patterns in the latent…

机器学习 · 计算机科学 2025-06-06 Konstantin Kirchheim , Frank Ortmeier

By design, discriminatively trained neural network classifiers produce reliable predictions only for in-distribution samples. For their real-world deployments, detecting out-of-distribution (OOD) samples is essential. Assuming OOD to be…

机器学习 · 计算机科学 2019-10-11 Sachin Vernekar , Ashish Gaurav , Vahdat Abdelzad , Taylor Denouden , Rick Salay , Krzysztof Czarnecki

Deep neural networks are known to be overconfident when applied to out-of-distribution (OOD) inputs which clearly do not belong to any class. This is a problem in safety-critical applications since a reliable assessment of the uncertainty…

机器学习 · 计算机科学 2021-03-11 Julian Bitterwolf , Alexander Meinke , Matthias Hein

Out-of-distribution (OOD) detectors can act as safety monitors in embedded cyber-physical systems by identifying samples outside a machine learning model's training distribution to prevent potentially unsafe actions. However, OOD detectors…

机器学习 · 计算机科学 2024-09-04 Aditya Bansal , Michael Yuhas , Arvind Easwaran

The out-of-distribution (OOD) problem generally arises when neural networks encounter data that significantly deviates from the training data distribution, i.e., in-distribution (InD). In this paper, we study the OOD problem from a neuron…

机器学习 · 计算机科学 2024-03-12 Yibing Liu , Chris Xing Tian , Haoliang Li , Lei Ma , Shiqi Wang

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