Feb. 12, 2024, 5:45 a.m. | Evan D. Cook Marc-Antoine Lavoie Steven L. Waslander

cs.CV updates on arXiv.org arxiv.org

Out-of-distribution (OOD) detection is a critical task for safe deployment of learning systems in the open world setting. In this work, we investigate the use of feature density estimation via normalizing flows for OOD detection and present a fully unsupervised approach which requires no exposure to OOD data, avoiding researcher bias in OOD sample selection. This is a post-hoc method which can be applied to any pretrained model, and involves training a lightweight auxiliary normalizing flow model to perform the …

bias cs.cv data deployment detection distribution feature learning systems researcher systems unsupervised via work world

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