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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…

Machine Learning · Computer Science 2022-09-12 Derek Everett , Andre T. Nguyen , Luke E. Richards , Edward Raff

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)…

Machine Learning · Computer Science 2024-04-09 Zhen Fang , Yixuan Li , Feng Liu , Bo Han , Jie Lu

Deep neural networks have significantly contributed to the success in predictive accuracy for classification tasks. However, they tend to make over-confident predictions in real-world settings, where domain shifting and out-of-distribution…

Artificial Intelligence · Computer Science 2021-07-16 Yibo Hu , Latifur Khan

Out-of-distribution detection is one of the most critical issue in the deployment of machine learning. The data analyst must assure that data in operation should be compliant with the training phase as well as understand if the environment…

Artificial Intelligence · Computer Science 2023-08-22 Giacomo De Bernardi , Sara Narteni , Enrico Cambiaso , Maurizio Mongelli

We propose a novel deep convolutional neural network (CNN) based multi-task learning approach for open-set visual recognition. We combine a classifier network and a decoder network with a shared feature extractor network within a multi-task…

Computer Vision and Pattern Recognition · Computer Science 2019-03-11 Poojan Oza , Vishal M. Patel

Deep neural networks have achieved significant success in the last decades, but they are not well-calibrated and often produce unreliable predictions. A large number of literature relies on uncertainty quantification to evaluate the…

Machine Learning · Computer Science 2023-11-13 Russell Alan Hart , Linlin Yu , Yifei Lou , Feng Chen

In many object recognition applications, the set of possible categories is an open set, and the deployed recognition system will encounter novel objects belonging to categories unseen during training. Detecting such "novel category" objects…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Thomas G. Dietterich , Alexander Guyer

This paper deals with uncertainty quantification and out-of-distribution detection in deep learning using Bayesian and ensemble methods. It proposes a practical solution to the lack of prediction diversity observed recently for standard…

Machine Learning · Computer Science 2025-02-03 Antoine de Mathelin , François Deheeger , Mathilde Mougeot , Nicolas Vayatis

Detecting test-time distribution shift has emerged as a key capability for safely deployed machine learning models, with the question being tackled under various guises in recent years. In this paper, we aim to provide a consolidated view…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Hongjun Wang , Sagar Vaze , Kai Han

Adoption of deep learning in safety-critical systems raise the need for understanding what deep neural networks do not understand after models have been deployed. The behaviour of deep neural networks is undefined for so called…

Machine Learning · Computer Science 2021-08-25 Rickard Sjögren , Johan Trygg

Out-of-distribution (OOD) detection is important for deploying machine learning models in the real world, where test data from shifted distributions can naturally arise. While a plethora of algorithmic approaches have recently emerged for…

Machine Learning · Computer Science 2021-12-03 Peyman Morteza , Yixuan Li

Reliable quantification of epistemic and aleatoric uncertainty is of crucial importance in applications where models are trained in one environment but applied to multiple different environments, often seen in real-world applications for…

Machine Learning · Computer Science 2023-11-02 Simon Dirmeier , Ye Hong , Yanan Xin , Fernando Perez-Cruz

Medical image diagnosis can be achieved by deep neural networks, provided there is enough varied training data for each disease class. However, a hitherto unknown disease class not encountered during training will inevitably be…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Mohammadreza Mohseni , Jordan Yap , William Yolland , Majid Razmara , M Stella Atkins

Detection of out-of-distribution samples is one of the critical tasks for real-world applications of computer vision. The advancement of deep learning has enabled us to analyze real-world data which contain unexplained samples, accentuating…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Seyyed Morteza Hashemi , Parvaneh Aliniya , Parvin Razzaghi

Out-of-distribution (OOD) detection is essential for reliably deploying machine learning models in the wild. Yet, most methods treat large pre-trained models as monolithic encoders and rely solely on their final-layer representations for…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 I. M. De la Jara , C. Rodriguez-Opazo , D. Teney , D. Ranasinghe , E. Abbasnejad

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…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Kun Fang , Qinghua Tao , Zuopeng Yang , Xiaolin Huang , Jie Yang

Out-of-Distribution (OOD) detection, i.e., identifying whether an input is sampled from a novel distribution other than the training distribution, is a critical task for safely deploying machine learning systems in the open world. Recently,…

Machine Learning · Computer Science 2023-01-13 Feng Xue , Zi He , Chuanlong Xie , Falong Tan , Zhenguo Li

Deep neural networks have achieved great success in classification tasks during the last years. However, one major problem to the path towards artificial intelligence is the inability of neural networks to accurately detect samples from…

Machine Learning · Computer Science 2021-03-16 Aristotelis-Angelos Papadopoulos , Mohammad Reza Rajati , Nazim Shaikh , Jiamian Wang

It is essential for safety-critical applications of deep neural networks to determine when new inputs are significantly different from the training distribution. In this paper, we explore this out-of-distribution (OOD) detection problem for…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Poulami Sinhamahapatra , Rajat Koner , Karsten Roscher , Stephan Günnemann

A change points detection aims to catch an abrupt disorder in data distribution. Common approaches assume that there are only two fixed distributions for data: one before and another after a change point. Real-world data are richer than…

Machine Learning · Computer Science 2022-04-18 Alexander Stepikin , Evgenia Romanenkova , Alexey Zaytsev