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Related papers: Outlyingness Scores with Cluster Catch Digraphs

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Out-of-distribution (OOD) detection is important for deploying reliable machine learning models on real-world applications. Recent advances in outlier exposure have shown promising results on OOD detection via fine-tuning model with…

Machine Learning · Computer Science 2023-10-27 Jianing Zhu , Geng Yu , Jiangchao Yao , Tongliang Liu , Gang Niu , Masashi Sugiyama , Bo Han

Open Set Recognition (OSR) extends image classification to an open-world setting, by simultaneously classifying known classes and identifying unknown ones. While conventional OSR approaches can detect Out-of-Distribution (OOD) samples, they…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Piyapat Saranrittichai , Chaithanya Kumar Mummadi , Claudia Blaiotta , Mauricio Munoz , Volker Fischer

Outlier detection is a fundamental data science task with applications ranging from data cleaning to network security. Given the fundamental nature of the task, this has been the subject of much research. Recently, a new class of outlier…

Databases · Computer Science 2016-12-26 Jiongqian Liang , Srinivasan Parthasarathy

In this paper, we present a novel approach that combines deep metric learning and synthetic data generation using diffusion models for out-of-distribution (OOD) detection. One popular approach for OOD detection is outlier exposure, where…

Computer Vision and Pattern Recognition · Computer Science 2024-05-02 Assefa Seyoum Wahd

Circle fitting methods are extensively utilized in various industries, particularly in quality control processes and design applications. The effectiveness of these algorithms can be significantly compromised when the point sets to be…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Ahmet Gökhan Poyraz

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.…

Machine Learning · Computer Science 2025-10-02 Berker Demirel , Marco Fumero , Francesco Locatello

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

A key feature of out-of-distribution (OOD) detection is to exploit a trained neural network by extracting statistical patterns and relationships through the multi-layer classifier to detect shifts in the expected input data distribution.…

Machine Learning · Computer Science 2023-06-07 Eduardo Dadalto , Pierre Colombo , Guillaume Staerman , Nathan Noiry , Pablo Piantanida

Since deep learning models have been implemented in many commercial applications, it is important to detect out-of-distribution (OOD) inputs correctly to maintain the performance of the models, ensure the quality of the collected data, and…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Qing Yu , Kiyoharu Aizawa

Research on Out-Of-Distribution (OOD) detection focuses mainly on building scores that efficiently distinguish OOD data from In Distribution (ID) data. On the other hand, Conformal Prediction (CP) uses non-conformity scores to construct…

Machine Learning · Statistics 2024-03-19 Paul Novello , Joseba Dalmau , Léo Andeol

Out-of-distribution (OOD) detection in multimodal contexts is essential for identifying deviations in combined inputs from different modalities, particularly in applications like open-domain dialogue systems or real-life dialogue…

Computation and Language · Computer Science 2024-11-01 Rena Gao , Xuetong Wu , Siwen Luo , Caren Han , Feng Liu

The unsupervised outlier detection (UOD) problem refers to a task to identify inliers given training data which contain outliers as well as inliers, without any labeled information about inliers and outliers. It has been widely recognized…

Machine Learning · Statistics 2024-07-17 Dongha Kim , Jaesung Hwang , Jongjin Lee , Kunwoong Kim , Yongdai Kim

Out-of-distribution (OOD) detection is essential to prevent anomalous inputs from causing a model to fail during deployment. While improved OOD detection methods have emerged, they often rely on the final layer outputs and require a full…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Ziqian Lin , Sreya Dutta Roy , Yixuan Li

The ability to detect unfamiliar or unexpected images is essential for safe deployment of computer vision systems. In the context of classification, the task of detecting images outside of a model's training domain is known as…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Galadrielle Humblot-Renaux , Sergio Escalera , Thomas B. Moeslund

Background: Machine learning (ML) methods often fail with data that deviates from their training distribution. This is a significant concern for ML-enabled devices in clinical settings, where data drift may cause unexpected performance that…

Artificial Intelligence · Computer Science 2024-02-14 Ghada Zamzmi , Kesavan Venkatesh , Brandon Nelson , Smriti Prathapan , Paul H. Yi , Berkman Sahiner , Jana G. Delfino

Out-of-distribution (OOD) detection is the problem of identifying inputs which are unrelated to the in-distribution task. The OOD detection performance when the in-distribution (ID) is ImageNet-1K is commonly being tested on a small range…

Machine Learning · Computer Science 2023-06-02 Julian Bitterwolf , Maximilian Müller , Matthias Hein

A novel unsupervised outlier score, which can be embedded into graph based dimensionality reduction techniques, is presented in this work. The score uses the directed nearest neighbor graphs of those techniques. Hence, the same measure of…

Machine Learning · Computer Science 2021-05-06 Jonas Wurst , Alberto Flores Fernández , Michael Botsch , Wolfgang Utschick

Out of distribution (OOD) detection is a crucial part of making machine learning systems robust. The ImageNet-O dataset is an important tool in testing the robustness of ImageNet trained deep neural networks that are widely used across a…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Anugya Srivastava , Shriya Jain , Mugdha Thigle

Induced order statistics (IOS) arise when sample units are reordered according to the value of an auxiliary variable, and the associated responses are analyzed in that induced order. IOS play a central role in applications where the goal is…

Econometrics · Economics 2026-03-10 Federico A. Bugni , Ivan A. Canay , Deborah Kim

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