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Out-of-distribution (OOD) detection remains a fundamental challenge for deep neural networks, particularly due to overconfident predictions on unseen OOD samples during testing. We reveal a key insight: OOD samples predicted as the same…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Yanqi Wu , Qichao Chen , Runhe Lai , Xinhua Lu , Jia-Xin Zhuang , Zhilin Zhao , Wei-Shi Zheng , Ruixuan Wang

Out-of-distribution (OOD) detection is crucial for ensuring the reliable deployment of deep models in real-world scenarios. Recently, from the perspective of over-parameterization, a series of methods leveraging weight sparsification…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Haonan Xu , Yang Yang

Out-of-distribution (OOD) detection has emerged as a popular technique to enhance the reliability of machine learning models by identifying unexpected inputs from unknown classes. Recent progress in pre-trained vision-language models (VLMs)…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yuanwei Hu , Bo Peng , Yadan Luo , Zhen Fang , Ling Chen , Jie Lu

Out-of-distribution (OOD) detection is critical to ensure the safe deployment of deep learning models in critical applications. Deep learning models can often misidentify OOD samples as in-distribution (ID) samples. This vulnerability…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Sudarshan Regmi

Out-of-distribution (OOD) detection is crucial for the safe deployment of neural networks. Existing CLIP-based approaches perform OOD detection by devising novel scoring functions or sophisticated fine-tuning methods. In this work, we…

Computation and Language · Computer Science 2024-11-06 Yixia Li , Boya Xiong , Guanhua Chen , Yun Chen

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…

Machine Learning · Computer Science 2022-12-09 Yiyou Sun , Yifei Ming , Xiaojin Zhu , Yixuan Li

Detecting out-of-distribution (OOD) instances is crucial for the reliable deployment of machine learning models in real-world scenarios. OOD inputs are commonly expected to cause a more uncertain prediction in the primary task; however,…

Machine Learning · Computer Science 2024-05-22 Mohammad Azizmalayeri , Ameen Abu-Hanna , Giovanni Cinà

Machine learning models, while progressively advanced, rely heavily on the IID assumption, which is often unfulfilled in practice due to inevitable distribution shifts. This renders them susceptible and untrustworthy for deployment in…

Machine Learning · Computer Science 2024-03-05 Han Yu , Jiashuo Liu , Xingxuan Zhang , Jiayun Wu , Peng Cui

LiDAR-based 3D object detection has become an essential part of automated driving due to its ability to localize and classify objects precisely in 3D. However, object detectors face a critical challenge when dealing with unknown foreground…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Michael Kösel , Marcel Schreiber , Michael Ulrich , Claudius Gläser , Klaus Dietmayer

Previous OOD detection systems only focus on the semantic gap between ID and OOD samples. Besides the semantic gap, we are faced with two additional gaps: the domain gap between source and target domains, and the class-imbalance gap between…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xiang Fang , Arvind Easwaran , Blaise Genest , Ponnuthurai Nagaratnam Suganthan

\noindent Out-of-distribution (OOD) detection is essential for the safe deployment of machine learning models. Extensive work has focused on devising various scoring functions for detecting OOD samples, while only a few studies focus on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Yifan Ding , Xixi Liu , Jonas Unger , Gabriel Eilertsen

Autonomous driving in complex urban scenarios requires 3D perception to be both comprehensive and precise. Traditional 3D perception methods focus on object detection, resulting in sparse representations that lack environmental detail.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Chao Chen , Ruoyu Wang , Yuliang Guo , Cheng Zhao , Xinyu Huang , Chen Feng , Liu Ren

Recent studies have addressed the concern of detecting and rejecting the out-of-distribution (OOD) samples as a major challenge in the safe deployment of deep learning (DL) models. It is desired that the DL model should only be confident…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Umar Khalid , Ashkan Esmaeili , Nazmul Karim , Nazanin Rahnavard

Out-of-Distribution (OOD) detection is critical for ensuring the reliability of machine learning models in safety-critical applications such as autonomous driving and medical diagnosis. While deploying personalized OOD detection directly on…

Cryptography and Security · Computer Science 2025-03-18 Shawn Li , Peilin Cai , Yuxiao Zhou , Zhiyu Ni , Renjie Liang , You Qin , Yi Nian , Zhengzhong Tu , Xiyang Hu , Yue Zhao

How can we automatically select an out-of-distribution (OOD) detection model for various underlying tasks? This is crucial for maintaining the reliability of open-world applications by identifying data distribution shifts, particularly in…

Machine Learning · Computer Science 2025-03-03 Yuehan Qin , Yichi Zhang , Yi Nian , Xueying Ding , Yue Zhao

Though Self-supervised learning (SSL) has been widely studied as a promising technique for representation learning, it doesn't generalize well on long-tailed datasets due to the majority classes dominating the feature space. Recent work…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Jianhong Bai , Zuozhu Liu , Hualiang Wang , Jin Hao , Yang Feng , Huanpeng Chu , Haoji Hu

Many neural network-based out-of-distribution (OoD) detection methods have been proposed. However, they require many training data for each target task. We propose a simple yet effective meta-learning method to detect OoD with small…

Machine Learning · Statistics 2022-06-22 Tomoharu Iwata , Atsutoshi Kumagai

Detecting out-of-distribution (OOD) samples plays a key role in open-world and safety-critical applications such as autonomous systems and healthcare. Recently, self-supervised representation learning techniques (via contrastive learning…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Sina Mohseni , Arash Vahdat , Jay Yadawa

Multimodal 3D occupancy prediction has garnered significant attention for its potential in autonomous driving. However, most existing approaches are single-modality: camera-based methods lack depth information, while LiDAR-based methods…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Zaipeng Duan , Chenxu Dang , Xuzhong Hu , Pei An , Junfeng Ding , Jie Zhan , Yunbiao Xu , Jie Ma

Out-of-distribution (OOD) detection represents a critical challenge in remote sensing applications, where reliable identification of novel or anomalous patterns is essential for autonomous monitoring, disaster response, and environmental…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Chenhao Wang , Yingrui Ji , Yu Meng , Yunjian Zhang , Yao Zhu