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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

Empirical risk minimization (ERM) is not robust to changes in the distribution of data. When the distribution of test data is different from that of training data, the problem is known as out-of-distribution generalization. Recently, two…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Shijian Xu

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

Out-of-distribution (OOD) detection is critical to ensuring the reliability of deep learning applications and has attracted significant attention in recent years. A rich body of literature has emerged to develop efficient score functions…

Machine Learning · Computer Science 2025-07-22 Yuhang Liu , Yuefei Wu , Bin Shi , Bo Dong

Out-of-distribution (OOD) detection is crucial for the reliable deployment of machine learning models in real-world scenarios, enabling the identification of unknown samples or objects. A prominent approach to enhance OOD detection…

Machine Learning · Statistics 2025-08-05 Heng Gao , Jun Li

This paper addresses the challenge of out-of-distribution (OOD) generalization in graph machine learning, a field rapidly advancing yet grappling with the discrepancy between source and target data distributions. Traditional graph learning…

Machine Learning · Computer Science 2024-08-09 Xin Sun , Liang Wang , Qiang Liu , Shu Wu , Zilei Wang , Liang Wang

Out-of-distribution (OOD) detection is a critical task for ensuring the reliability and safety of deep neural networks in real-world scenarios. Different from most previous OOD detection methods that focus on designing OOD scores or…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yao Zhu , YueFeng Chen , Chuanlong Xie , Xiaodan Li , Rong Zhang , Hui Xue , Xiang Tian , bolun zheng , Yaowu Chen

Systematics contaminate observables, leading to distribution shifts relative to theoretically simulated signals-posing a major challenge for using pre-trained models to label such observables. Since systematics are often poorly understood…

Instrumentation and Methods for Astrophysics · Physics 2025-11-18 Sultan Hassan , Sambatra Andrianomena , Benjamin D. Wandelt

As machine learning becomes increasingly prevalent in impactful decisions, recognizing when inference data is outside the model's expected input distribution is paramount for giving context to predictions. Out-of-distribution (OOD)…

Machine Learning · Computer Science 2024-01-19 Anish Lakkapragada , Amol Khanna , Edward Raff , Nathan Inkawhich

We introduce DiMPLe (Disentangled Multi-Modal Prompt Learning), a novel approach to disentangle invariant and spurious features across vision and language modalities in multi-modal learning. Spurious correlations in visual data often hinder…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Umaima Rahman , Mohammad Yaqub , Dwarikanath Mahapatra

Image classification with neural networks (NNs) is widely used in industrial processes, situations where the model likely encounters unknown objects during deployment, i.e., out-of-distribution (OOD) data. Worryingly, NNs tend to make…

Machine Learning · Computer Science 2025-01-14 Arthur Thuy , Dries F. Benoit

Prior research on out-of-distribution detection (OoDD) has primarily focused on single-modality models. Recently, with the advent of large-scale pretrained vision-language models such as CLIP, OoDD methods utilizing such multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Jeonghyeon Kim , Sangheum Hwang

Graph Out-of-Distribution (OOD), requiring that models trained on biased data generalize to the unseen test data, has a massive of real-world applications. One of the most mainstream methods is to extract the invariant subgraph by aligning…

Machine Learning · Computer Science 2024-02-15 Xuexin Chen , Ruichu Cai , Kaitao Zheng , Zhifan Jiang , Zhengting Huang , Zhifeng Hao , Zijian Li

A major bottleneck in the real-world applications of machine learning models is their failure in generalizing to unseen domains whose data distribution is not i.i.d to the training domains. This failure often stems from learning…

Machine Learning · Computer Science 2021-09-28 Soroosh Shahtalebi , Jean-Christophe Gagnon-Audet , Touraj Laleh , Mojtaba Faramarzi , Kartik Ahuja , Irina Rish

Clustering mixed-type tabular data is fundamental for exploratory analysis, yet remains challenging due to misaligned numerical-categorical representations, uneven and context-dependent feature relevance, and disconnected and post-hoc…

Machine Learning · Computer Science 2026-04-08 Lehao Li , Qiang Huang , Yihao Ang , Bryan Kian Hsiang Low , Anthony K. H. Tung , Xiaokui Xiao

Density-based Out-of-distribution (OOD) detection has recently been shown unreliable for the task of detecting OOD images. Various density ratio based approaches achieve good empirical performance, however methods typically lack a…

Machine Learning · Statistics 2022-06-09 Mingtian Zhang , Andi Zhang , Tim Z. Xiao , Yitong Sun , Steven McDonagh

This paper considers the out-of-distribution (OOD) generalization problem under the setting that both style distribution shift and spurious features exist and domain labels are missing. This setting frequently arises in real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Ruimeng Li , Yuanhao Pu , Zhaoyi Li , Hong Xie , Defu Lian

Deploying machine learning in open environments presents the challenge of encountering diverse test inputs that differ significantly from the training data. These out-of-distribution samples may exhibit shifts in local or global features…

Machine Learning · Computer Science 2024-03-19 Jiawei Li , Sitong Li , Shanshan Wang , Yicheng Zeng , Falong Tan , Chuanlong Xie

As breakthroughs in deep learning transform key industries, models are increasingly required to extrapolate on datapoints found outside the range of the training set, a challenge we coin as out-of-support (OoS) generalisation. However,…

Machine Learning · Computer Science 2026-03-06 Roussel Desmond Nzoyem

Spurious correlations, unstable statistical shortcuts a model can exploit, are expected to degrade performance out-of-distribution (OOD). However, across many popular OOD generalization benchmarks, vanilla empirical risk minimization (ERM)…

Machine Learning · Computer Science 2025-08-05 Olawale Salaudeen , Nicole Chiou , Shiny Weng , Sanmi Koyejo