3260 papers • 126 benchmarks • 313 datasets
Traditional supervised learning aims to train a classifier in the closed-set world, where training and test samples share the same label space. Open set learning (OSL) is a more challenging and realistic setting, where there exist test samples from the classes that are unseen during training. Open set recognition (OSR) is the sub-task of detecting test samples which do not come from the training.
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The proposed OpenMax model significantly outperforms open set recognition accuracy of basic deep networks as well as deep networks with thresholding of SoftMax probabilities, and it is proved that the OpenMax concept provides bounded open space risk, thereby formally providing anopen set recognition solution.
In this representation instances from the same class are close to each other while instances from different classes are further apart, resulting in statistically significant improvement when compared to other approaches on three datasets from two different domains.
A probabilistic approach is introduced that connects perspectives based on variational inference in a single deep autoencoder model to bound the approximate posterior by fitting regions of high density on the basis of correctly classified data points.
This paper addresses the gap in recent technical developments in recent technical developments in the field of OOD detection by presenting a unified framework called generalized OOD detection, which encompasses the five aforementioned problems, i.e.,AD, ND, OSR, OOD detection, and OD.
A unified, well-structured codebase called OpenOOD is built, which implements over 30 methods developed in relevant fields and provides a comprehensive benchmark under the recently proposed generalized OOD detection framework.
An integrated OLTR algorithm is developed that maps an image to a feature space such that visual concepts can easily relate to each other based on a learned metric that respects the closed-world classification while acknowledging the novelty of the open world.
An upgraded version of the AMPF, AMPF++, is proposed, which adds much more generated unknown samples into the training phase and can further improve the differential mapping ability of the model to known and unknown classes with the adversarial motion of the margin constraint radius.
A Deep Evidential Action Recognition (DEAR) method to recognize actions in an open testing set and a plug-and-play module to debias the learned representation through contrastive learning to mitigate the static bias of video representation.
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