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Out-of-distribution (OOD) detection is critical for ensuring the reliability of deep learning models in open-world applications. While post-hoc methods are favored for their efficiency and ease of deployment, existing approaches often…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Jiachen Liang , Ruibing Hou , Minyang Hu , Hong Chang , Shiguang Shan , Xilin Chen

Misinformation has become a major challenge in the era of increasing digital information, requiring the development of effective detection methods. We have investigated a novel approach to Out-Of-Context detection (OOCD) that uses synthetic…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Fatma Shalabi , Huy H. Nguyen , Hichem Felouat , Ching-Chun Chang , Isao Echizen

Existing Visual-Language Models (VLMs) have achieved significant progress by being trained on massive-scale datasets, typically under the assumption that data are independent and identically distributed (IID). However, in real-world…

计算机视觉与模式识别 · 计算机科学 2026-02-23 Ling Lin , Yang Bai , Heng Su , Congcong Zhu , Yaoxing Wang , Yang Zhou , Huazhu Fu , Jingrun Chen

This thesis makes considerable contributions to the realm of machine learning, specifically in the context of open-world scenarios where systems face previously unseen data and contexts. Traditional machine learning models are usually…

机器学习 · 计算机科学 2023-10-11 Yiyou Sun

Deep neural networks achieve superior performance for learning from independent and identically distributed (i.i.d.) data. However, their performance deteriorates significantly when handling out-of-distribution (OoD) data, where the…

机器学习 · 计算机科学 2023-07-25 Haoyue Bai , Ceyuan Yang , Yinghao Xu , S. -H. Gary Chan , Bolei Zhou

While Out-of-distribution (OOD) detection has been well explored in computer vision, there have been relatively few prior attempts in OOD detection for NLP classification. In this paper we argue that these prior attempts do not fully…

人工智能 · 计算机科学 2021-11-09 Mrinal Rawat , Ramya Hebbalaguppe , Lovekesh Vig

Out-of-distribution (OOD) detection is crucial for deploying robust machine learning models. However, when training data follows a long-tailed distribution, the model's ability to accurately detect OOD samples is significantly compromised,…

机器学习 · 计算机科学 2025-09-26 Shuai Feng , Yuxin Ge , Yuntao Du , Mingcai Chen , Chongjun Wang , Lei Feng

Out-of-distribution (OOD) detection is a critical task for reliable predictions over text. Fine-tuning with pre-trained language models has been a de facto procedure to derive OOD detectors with respect to in-distribution (ID) data. Despite…

计算与语言 · 计算机科学 2023-05-23 Rheeya Uppaal , Junjie Hu , Yixuan Li

Out-of-distribution (OOD) detection is a critical issue for the stable and reliable operation of systems using a deep neural network (DNN). Although many OOD detection methods have been proposed, it remains unclear how the differences…

机器学习 · 计算机科学 2024-10-30 Kazuki Uematsu , Kosuke Haruki , Taiji Suzuki , Mitsuhiro Kimura , Takahiro Takimoto , Hideyuki Nakagawa

There are limited works showing the efficacy of unsupervised Out-of-Distribution (OOD) methods on complex medical data. Here, we present preliminary findings of our unsupervised OOD detection algorithm, SimCLR-LOF, as well as a recent state…

图像与视频处理 · 电气工程与系统科学 2021-11-10 Max Torop , Sandesh Ghimire , Wenqian Liu , Dana H. Brooks , Octavia Camps , Milind Rajadhyaksha , Jennifer Dy , Kivanc Kose

Deep learning systems deployed in real-world applications often encounter data that is different from their in-distribution (ID). A reliable model should ideally abstain from making decisions in this out-of-distribution (OOD) setting.…

机器学习 · 计算机科学 2025-10-02 Berker Demirel , Marco Fumero , Francesco Locatello

This paper presents a novel evaluation framework for Out-of-Distribution (OOD) detection that aims to assess the performance of machine learning models in more realistic settings. We observed that the real-world requirements for testing OOD…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Vahid Reza Khazaie , Anthony Wong , Mohammad Sabokrou

Detecting out-of-distribution (OOD) inputs is a principal task for ensuring the safety of deploying deep-neural-network classifiers in open-set scenarios. OOD samples can be drawn from arbitrary distributions and exhibit deviations from…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Choubo Ding , Guansong Pang

In supervised machine learning, the assumption that training data is labelled correctly is not always satisfied. In this paper, we investigate an instance of labelling error for classification tasks in which the dataset is corrupted with…

声音 · 计算机科学 2020-02-13 Turab Iqbal , Yin Cao , Qiuqiang Kong , Mark D. Plumbley , Wenwu Wang

Graph neural networks (GNNs) are proven effective in extracting complex node and structural information from graph data. While current GNNs perform well in node classification tasks within in-distribution (ID) settings, real-world scenarios…

机器学习 · 计算机科学 2025-05-08 Tao Yin , Chen Zhao , Xiaoyan Liu , Minglai Shao

Deep neural networks (DNNs) often exhibit overconfidence when encountering out-of-distribution (OOD) samples, posing significant challenges for deployment. Since DNNs are trained on in-distribution (ID) datasets, the information flow of ID…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Guide Yang , Chao Hou , Weilong Peng , Xiang Fang , Yongwei Nie , Peican Zhu , Keke Tang

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…

机器学习 · 计算机科学 2023-06-07 Jihye Choi , Jayaram Raghuram , Ryan Feng , Jiefeng Chen , Somesh Jha , Atul Prakash

Out-of-distribution (OOD) detection has recently gained substantial attention due to the importance of identifying out-of-domain samples in reliability and safety. Although OOD detection methods have advanced by a great deal, they are still…

计算机视觉与模式识别 · 计算机科学 2022-10-03 Mohammad Azizmalayeri , Arshia Soltani Moakhar , Arman Zarei , Reihaneh Zohrabi , Mohammad Taghi Manzuri , Mohammad Hossein Rohban

When testing data and training data come from different distributions, deep neural networks (DNNs) will face significant safety risks in practical applications. Therefore, out-of-distribution (OOD) detection techniques, which can identify…

机器学习 · 计算机科学 2026-04-01 Cheng Yang , Yu Hao , Qi Zhang , Chuan Shi

Detecting whether examples belong to a given in-distribution or are Out-Of-Distribution (OOD) requires identifying features specific to the in-distribution. In the absence of labels, these features can be learned by self-supervised…

人工智能 · 计算机科学 2022-01-19 Nima Rafiee , Rahil Gholamipoorfard , Nikolas Adaloglou , Simon Jaxy , Julius Ramakers , Markus Kollmann