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Out-of-Distribution Detection Using an Ensemble of Self Supervised Leave-Out Classifiers

Published: 08 September 2018 Publication History
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  • Abstract

    As deep learning methods form a critical part in commercially important applications such as autonomous driving and medical diagnostics, it is important to reliably detect out-of-distribution (OOD) inputs while employing these algorithms. In this work, we propose an OOD detection algorithm which comprises of an ensemble of classifiers. We train each classifier in a self-supervised manner by leaving out a random subset of training data as OOD data and the rest as in-distribution (ID) data. We propose a novel margin-based loss over the softmax output which seeks to maintain at least a margin m between the average entropy of the OOD and in-distribution samples. In conjunction with the standard cross-entropy loss, we minimize the novel loss to train an ensemble of classifiers. We also propose a novel method to combine the outputs of the ensemble of classifiers to obtain OOD detection score and class prediction. Overall, our method convincingly outperforms Hendrycks et al. [7] and the current state-of-the-art ODIN [13] on several OOD detection benchmarks.

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    • (2023)Optimizing Upstream Representations for Out-of-Domain Detection with Supervised Contrastive LearningProceedings of the 32nd ACM International Conference on Information and Knowledge Management10.1145/3583780.3615001(2585-2595)Online publication date: 21-Oct-2023
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            Published In

            cover image Guide Proceedings
            Computer Vision – ECCV 2018: 15th European Conference, Munich, Germany, September 8-14, 2018, Proceedings, Part VIII
            Sep 2018
            845 pages
            ISBN:978-3-030-01236-6
            DOI:10.1007/978-3-030-01237-3

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            Springer-Verlag

            Berlin, Heidelberg

            Publication History

            Published: 08 September 2018

            Author Tags

            1. Anomaly detection
            2. Out-of-distribution

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            • (2024)Safety of Perception Systems for Automated Driving: A Case Study on ApolloACM Transactions on Software Engineering and Methodology10.1145/363196933:3(1-28)Online publication date: 15-Mar-2024
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            • (2023)Optimizing Upstream Representations for Out-of-Domain Detection with Supervised Contrastive LearningProceedings of the 32nd ACM International Conference on Information and Knowledge Management10.1145/3583780.3615001(2585-2595)Online publication date: 21-Oct-2023
            • (2023)MixOOD: Improving Out-of-distribution Detection with Enhanced Data MixupACM Transactions on Multimedia Computing, Communications, and Applications10.1145/357893519:5(1-18)Online publication date: 16-Mar-2023
            • (2022)Density-driven regularization for out-of-distribution detectionProceedings of the 36th International Conference on Neural Information Processing Systems10.5555/3600270.3600335(887-900)Online publication date: 28-Nov-2022
            • (2022)Taxonomy of Machine Learning Safety: A Survey and PrimerACM Computing Surveys10.1145/355138555:8(1-38)Online publication date: 23-Dec-2022
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            • (2022)Learning on Graphs with Out-of-Distribution NodesProceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining10.1145/3534678.3539457(1635-1645)Online publication date: 14-Aug-2022
            • (2022)Practical and efficient out-of-domain detection with adversarial learningProceedings of the 37th ACM/SIGAPP Symposium on Applied Computing10.1145/3477314.3507089(853-862)Online publication date: 25-Apr-2022
            • (2022)Out-of-Distribution Identification: Let Detector Tell Which I Am Not SureComputer Vision – ECCV 202210.1007/978-3-031-20080-9_37(638-654)Online publication date: 23-Oct-2022
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