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We evaluate the out-of-distribution (OOD) detection performance of self-supervised learning (SSL) techniques with a new evaluation framework. Unlike the previous evaluation methods, the proposed framework adjusts the distance of OOD samples…

Machine Learning · Computer Science 2021-10-19 Jeonghoon Park , Kyungmin Jo , Daehoon Gwak , Jimin Hong , Jaegul Choo , Edward Choi

In recent years, research on out-of-distribution (OoD) detection for semantic segmentation has mainly focused on road scenes -- a domain with a constrained amount of semantic diversity. In this work, we challenge this constraint and extend…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Silvio Galesso , Philipp Schröppel , Hssan Driss , Thomas Brox

Out-of-distribution (OOD) detection aims to discern outliers from the intended data distribution, which is crucial to maintaining high reliability and a good user experience. Most recent studies in OOD detection utilize the information from…

Computation and Language · Computer Science 2022-10-21 Hyunsoo Cho , Choonghyun Park , Jaewook Kang , Kang Min Yoo , Taeuk Kim , Sang-goo Lee

Unsupervised out-of-distribution detection (OOD) seeks to identify out-of-domain data by learning only from unlabeled in-domain data. We present a novel approach for this task - Lift, Map, Detect (LMD) - that leverages recent advancement in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Zhenzhen Liu , Jin Peng Zhou , Yufan Wang , Kilian Q. Weinberger

Out-of-distribution (OOD) detection is a critical task to ensure the reliability and security of machine learning models deployed in real-world applications. Conventional methods for OOD detection that rely on single-modal information,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 K Huang , G Song , Hanwen Su , Jiyan Wang

Clinically deployed segmentation models are known to fail on data outside of their training distribution. As these models perform well on most cases, it is imperative to detect out-of-distribution (OOD) images at inference to protect…

Machine Learning · Computer Science 2023-10-23 McKell Woodland , Nihil Patel , Mais Al Taie , Joshua P. Yung , Tucker J. Netherton , Ankit B. Patel , Kristy K. Brock

Detecting out-of-distribution (OOD) samples for trusted medical image segmentation remains a significant challenge. The critical issue here is the lack of a strict definition of abnormal data, which often results in artificial problem…

Image and Video Processing · Electrical Eng. & Systems 2023-08-16 Anton Vasiliuk , Daria Frolova , Mikhail Belyaev , Boris Shirokikh

Detecting out-of-distribution (OOD) data is crucial in real-world machine learning applications, particularly in safety-critical domains. Existing methods often leverage language information from vision-language models (VLMs) to enhance OOD…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Shu Zou , Xinyu Tian , Qinyu Zhao , Zhaoyuan Yang , Jing Zhang

We present a principled approach for detecting out-of-distribution (OOD) and adversarial samples in deep neural networks. Our approach consists in modeling the outputs of the various layers (deep features) with parametric probability…

Machine Learning · Statistics 2019-09-27 Nilesh A. Ahuja , Ibrahima Ndiour , Trushant Kalyanpur , Omesh Tickoo

Detecting test-time distribution shift has emerged as a key capability for safely deployed machine learning models, with the question being tackled under various guises in recent years. In this paper, we aim to provide a consolidated view…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Hongjun Wang , Sagar Vaze , Kai Han

Deep neural networks for image classification only learn to map in-distribution inputs to their corresponding ground truth labels in training without differentiating out-of-distribution samples from in-distribution ones. This results from…

Machine Learning · Computer Science 2023-08-29 Zhilin Zhao , Longbing Cao , Kun-Yu Lin

This paper introduces a novel method leveraging bi-encoder-based detectors along with a comprehensive study comparing different out-of-distribution (OOD) detection methods in NLP using different feature extractors. The feature extraction…

Computation and Language · Computer Science 2024-03-14 Louis Owen , Biddwan Ahmed , Abhay Kumar

Deep neural networks are known to achieve superior results in classification tasks. However, it has been recently shown that they are incapable to detect examples that are generated by a distribution which is different than the one they…

Machine Learning · Computer Science 2019-12-09 Aristotelis-Angelos Papadopoulos , Nazim Shaikh , Mohammad Reza Rajati

Detecting out-of-distribution (OOD) inputs is a central challenge for safely deploying machine learning models in the real world. Existing solutions are mainly driven by small datasets, with low resolution and very few class labels (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Rui Huang , Yixuan Li

Image classification plays a pivotal role across diverse applications, yet challenges persist when models are deployed in real-world scenarios. Notably, these models falter in detecting unfamiliar classes that were not incorporated during…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Butian Xiong , Liguang Zhou , Tin Lun Lam , Yangsheng Xu

Out-of-distribution detection (OOD) deals with anomalous input to neural networks. In the past, specialized methods have been proposed to reject predictions on anomalous input. Similarly, it was shown that feature extraction models in…

Machine Learning · Computer Science 2022-01-25 Jan Diers , Christian Pigorsch

Out-of-distribution (OOD) detection is crucial for ensuring the reliability and safety of machine learning models in real-world applications. While zero-shot OOD detection, which requires no training on in-distribution (ID) data, has become…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Yu Liu , Hao Tang , Haiqi Zhang , Jing Qin , Zechao Li

Deep neural networks achieve superior performance in challenging tasks such as image classification. However, deep classifiers tend to incorrectly classify out-of-distribution (OOD) inputs, which are inputs that do not belong to the…

Machine Learning · Computer Science 2019-10-24 Vahdat Abdelzad , Krzysztof Czarnecki , Rick Salay , Taylor Denounden , Sachin Vernekar , Buu Phan

The increased success of Deep Learning (DL) has recently sparked large-scale deployment of DL models in many diverse industry segments. Yet, a crucial weakness of supervised model is the inherent difficulty in handling out-of-distribution…

Machine Learning · Computer Science 2021-07-15 Lixuan Yang , Dario Rossi

Detecting deepfakes has become a critical challenge in Computer Vision and Artificial Intelligence. Despite significant progress in detection techniques, generalizing them to open-set scenarios continues to be a persistent difficulty.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Luca Maiano , Fabrizio Casadei , Irene Amerini