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Deep Neural Networks for classification behave unpredictably when confronted with inputs not stemming from the training distribution. This motivates out-of-distribution detection (OOD) mechanisms. The usual lack of prior information on…

机器学习 · 计算机科学 2022-03-02 Konstantin Kirchheim , Tim Gonschorek , Frank Ortmeier

Machine learning models encounter Out-of-Distribution (OoD) errors when the data seen at test time are generated from a different stochastic generator than the one used to generate the training data. One proposal to scale OoD detection to…

机器学习 · 统计学 2019-05-27 Hyunsun Choi , Eric Jang , Alexander A. Alemi

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…

机器学习 · 计算机科学 2026-02-19 David Graber , Victor Armegioiu , Rebecca Buller , Siddhartha Mishra

Conversational agents are usually designed for closed-world environments. Unfortunately, users can behave unexpectedly. Based on the open-world environment, we often encounter the situation that the training and test data are sampled from…

计算与语言 · 计算机科学 2022-04-25 Petr Lorenc , Tommaso Gargiani , Jan Pichl , Jakub Konrád , Petr Marek , Ondřej Kobza , Jan Šedivý

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

Image captioning research achieved breakthroughs in recent years by developing neural models that can generate diverse and high-quality descriptions for images drawn from the same distribution as training images. However, when facing…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Gabi Shalev , Gal-Lev Shalev , Joseph Keshet

Out-of-distribution (OOD) detection seeks to identify samples from unknown classes, a critical capability for deploying machine learning models in open-world scenarios. Recent research has demonstrated that Vision-Language Models (VLMs) can…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Zhikang Xu , Qianqian Xu , Zitai Wang , Cong Hua , Sicong Li , Zhiyong Yang , Qingming Huang

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

Reinforcement Learning (RL) based solutions are being adopted in a variety of domains including robotics, health care and industrial automation. Most focus is given to when these solutions work well, but they fail when presented with out of…

机器学习 · 计算机科学 2021-12-07 Aaqib Parvez Mohammed , Matias Valdenegro-Toro

Out-of-distribution (OOD) detection aims to detect "unknown" data whose labels have not been seen during the in-distribution (ID) training process. Recent progress in representation learning gives rise to distance-based OOD detection that…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Ji Zhang , Lianli Gao , Bingguang Hao , Hao Huang , Jingkuan Song , Hengtao Shen

When presented with Out-of-Distribution (OOD) examples, deep neural networks yield confident, incorrect predictions. Detecting OOD examples is challenging, and the potential risks are high. In this paper, we propose to detect OOD examples…

机器学习 · 计算机科学 2020-01-10 Chandramouli Shama Sastry , Sageev Oore

Robust out-of-distribution (OOD) detection is an indispensable component of modern artificial intelligence (AI) systems, especially in safety-critical applications where models must identify inputs from unfamiliar classes not seen during…

机器学习 · 计算机科学 2025-09-09 Tarhib Al Azad , Shahana Ibrahim

Out-of-distribution (OOD) detection aims to detect test samples outside the training category space, which is an essential component in building reliable machine learning systems. Existing reviews on OOD detection primarily focus on method…

机器学习 · 计算机科学 2025-08-05 Shuo Lu , Yingsheng Wang , Lijun Sheng , Lingxiao He , Aihua Zheng , Jian Liang

Out-of-distribution (OOD) detection is a critical task in machine learning that seeks to identify abnormal samples. Traditionally, unsupervised methods utilize a deep generative model for OOD detection. However, such approaches require a…

机器学习 · 计算机科学 2024-10-25 Alvin Heng , Alexandre H. Thiery , Harold Soh

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)…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Sina Sharifi , Taha Entesari , Bardia Safaei , Vishal M. Patel , Mahyar Fazlyab

Out-of-distribution (OOD) detection is essential for the reliability of ML models. Most existing methods for OOD detection learn a fixed decision criterion from a given in-distribution dataset and apply it universally to decide if a data…

机器学习 · 计算机科学 2023-11-29 YiFan Zhang , Xue Wang , Tian Zhou , Kun Yuan , Zhang Zhang , Liang Wang , Rong Jin , Tieniu Tan

Out-of-distribution (OOD) detection identifies test samples that differ from the training data, which is critical to ensuring the safety and reliability of machine learning (ML) systems. While a plethora of methods have been developed to…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Viet Duong , Qiong Wu , Zhengyi Zhou , Eric Zavesky , Jiahe Chen , Xiangzhou Liu , Wen-Ling Hsu , Huajie Shao

Real-world natural language processing (NLP) models need to be continually updated to fix the prediction errors in out-of-distribution (OOD) data streams while overcoming catastrophic forgetting. However, existing continual learning (CL)…

计算与语言 · 计算机科学 2022-05-05 Bill Yuchen Lin , Sida Wang , Xi Victoria Lin , Robin Jia , Lin Xiao , Xiang Ren , Wen-tau Yih

We study the problem of efficiently detecting Out-of-Distribution (OOD) samples at test time in supervised and unsupervised learning contexts. While ML models are typically trained under the assumption that training and test data stem from…

机器学习 · 计算机科学 2024-05-13 Alberto Caron , Chris Hicks , Vasilios Mavroudis

Large language models (LLMs) such as GPT-4 sometimes appear to be creative, solving novel tasks often with a few demonstrations in the prompt. These tasks require the models to generalize on distributions different from those from training…

计算与语言 · 计算机科学 2024-12-31 Jiajun Song , Zhuoyan Xu , Yiqiao Zhong