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Detecting deepfakes has become a critical challenge in Computer Vision and Artificial Intelligence. Despite significant progress in detection techniques, generalizing them to open-set scenarios continues to be a persistent difficulty.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Luca Maiano , Fabrizio Casadei , Irene Amerini

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…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Kai Liu , Zhihang Fu , Sheng Jin , Chao Chen , Ze Chen , Rongxin Jiang , Fan Zhou , Yaowu Chen , Jieping Ye

Detecting out-of-distribution (OOD) samples is essential for ensuring the reliability of deep neural networks (DNNs) in real-world scenarios. While previous research has predominantly investigated the disparity between in-distribution (ID)…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Yingwen Wu , Tao Li , Xinwen Cheng , Jie Yang , Xiaolin Huang

Out-of-distribution (OOD) detection remains challenging in text-rich networks, where textual features intertwine with topological structures. Existing methods primarily address label shifts or rudimentary domain-based splits, overlooking…

Computation and Language · Computer Science 2025-09-03 Danny Wang , Ruihong Qiu , Guangdong Bai , Zi Huang

Out-of-Distribution (OOD) detection is essential in real-world applications, which has attracted increasing attention in recent years. However, most existing OOD detection methods require many labeled In-Distribution (ID) data, causing a…

Machine Learning · Computer Science 2022-10-14 Yi-Xuan Sun , Wei Wang

Test-time adaptation (TTA) refers to adjusting the model during the testing phase to cope with changes in sample distribution and enhance the model's adaptability to new environments. In real-world scenarios, models often encounter samples…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Ziqiong Liu , Yushun Tang , Junyang Ji , Zhihai He

Out-of-distribution (OOD) detection plays a crucial role in ensuring the safe deployment of deep neural network (DNN) classifiers. While a myriad of methods have focused on improving the performance of OOD detectors, a critical gap remains…

Machine Learning · Computer Science 2023-06-07 Jihye Choi , Jayaram Raghuram , Ryan Feng , Jiefeng Chen , Somesh Jha , Atul Prakash

To deploy machine learning models in the real world, researchers have proposed many OOD detection algorithms to help models identify unknown samples during the inference phase and prevent them from making untrustworthy predictions. Unlike…

Machine Learning · Computer Science 2025-02-25 Heng Gao , Zhuolin He , Jian Pu

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…

Machine Learning · Computer Science 2021-12-21 Jingbo Sun , Li Yang , Jiaxin Zhang , Frank Liu , Mahantesh Halappanavar , Deliang Fan , Yu Cao

Despite the significant research efforts on trajectory prediction for automated driving, limited work exists on assessing the prediction reliability. To address this limitation we propose an approach that covers two sources of error, namely…

Robotics · Computer Science 2023-08-07 Julian Wiederer , Julian Schmidt , Ulrich Kressel , Klaus Dietmayer , Vasileios Belagiannis

Accurate trajectory prediction is essential for the safe operation of autonomous vehicles in real-world environments. Even well-trained machine learning models may produce unreliable predictions due to discrepancies between training data…

Robotics · Computer Science 2025-04-24 Tongfe Guo , Taposh Banerjee , Rui Liu , Lili Su

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…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Armando Zhu , Jiabei Liu , Keqin Li , Shuying Dai , Bo Hong , Peng Zhao , Changsong Wei

In this work, we propose a novel pipeline for face recognition and out-of-distribution (OOD) detection using short-range FMCW radar. The proposed system utilizes Range-Doppler and micro Range-Doppler Images. The architecture features a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Sabri Mustafa Kahya , Boran Hamdi Sivrikaya , Muhammet Sami Yavuz , Eckehard Steinbach

One of the challenges for neural networks in real-life applications is the overconfident errors these models make when the data is not from the original training distribution. Addressing this issue is known as Out-of-Distribution (OOD)…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Sina Sharifi , Taha Entesari , Bardia Safaei , Vishal M. Patel , Mahyar Fazlyab

Predictive machine learning models generally excel on in-distribution data, but their performance degrades on out-of-distribution (OOD) inputs. Reliable deployment therefore requires robust OOD detection, yet this is particularly…

Machine Learning · Computer Science 2026-02-19 David Graber , Victor Armegioiu , Rebecca Buller , Siddhartha Mishra

Out-of-Distribution (OOD) detection is a cornerstone for the safe deployment of AI systems in the open world. However, existing methods treat OOD detection as a binary classification problem, a cognitive flattening that fails to distinguish…

Machine Learning · Statistics 2025-10-16 Ningkang Peng , Yuzhe Mao , Yuhao Zhang , Linjin Qian , Qianfeng Yu , Yanhui Gu , Yi Chen , Li Kong

Out-of-distribution (OOD) detection and uncertainty estimation (UE) are critical components for building safe machine learning systems, especially in real-world scenarios where unexpected inputs are inevitable. However the two problems…

Machine Learning · Computer Science 2025-12-01 Pirzada Suhail , Rehna Afroz , Gouranga Bala , Amit Sethi

The estimation of origin-destination (OD) matrices is a crucial aspect of Intelligent Transport Systems (ITS). It involves adjusting an initial OD matrix by regressing the current observations like traffic counts of road sections (e.g.,…

Artificial Intelligence · Computer Science 2023-10-10 Zheli Xiong , Defu Lian , Enhong Chen , Gang Chen , Xiaomin Cheng

Out-of-distribution (OOD) object detection is an important yet underexplored task. A reliable object detector should be able to handle OOD objects by localizing and correctly classifying them as OOD. However, a critical issue arises when…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Sadia Ilyas , Annika Mütze , Klaus Friedrichs , Thomas Kurbiel , Matthias Rottmann

Deep neural networks often struggle to recognize when an input lies outside their training experience, leading to unreliable and overconfident predictions. Building dependable machine learning systems therefore requires methods that can…

Machine Learning · Computer Science 2025-12-02 Pirzada Suhail , Rehna Afroz , Amit Sethi