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In open set learning, a model must be able to generalize to novel classes when it encounters a sample that does not belong to any of the classes it has seen before. Open set learning poses a realistic learning scenario that is receiving…

机器学习 · 计算机科学 2018-11-27 Chengsheng Mao , Liang Yao , Yuan Luo

Open-set Recognition (OSR) aims to identify test samples whose classes are not seen during the training process. Recently, Unified Open-set Recognition (UOSR) has been proposed to reject not only unknown samples but also known but wrongly…

计算机视觉与模式识别 · 计算机科学 2023-02-09 Jun Cen , Di Luan , Shiwei Zhang , Yixuan Pei , Yingya Zhang , Deli Zhao , Shaojie Shen , Qifeng Chen

Convolutional Neural Networks are a well-known staple of modern image classification. However, it can be difficult to assess the quality and robustness of such models. Deep models are known to perform well on a given training and estimation…

机器学习 · 统计学 2018-02-06 Alexey Chaplygin , Joshua Chacksfield

Zero-Shot Learning (ZSL) focuses on classifying samples of unseen classes with only their side semantic information presented during training. It cannot handle real-life, open-world scenarios where there are test samples of unknown classes…

计算机视觉与模式识别 · 计算机科学 2023-07-10 Tianqi Li , Guansong Pang , Xiao Bai , Jin Zheng , Lei Zhou , Xin Ning

In recent years there has been increasing interest in the field of Open-Set Recognition, which allows a classification model to identify inputs as "unknown" when it encounters an object or class not in the training set. This ability to flag…

机器学习 · 计算机科学 2024-09-20 Zachary Rabin , Jim Davis , Benjamin Lewis , Matthew Scherreik

One of the challenges in pattern recognition is open set recognition. Compared with closed set recognition, open set recognition needs to reduce not only the empirical risk, but also the open space risk, and the reduction of these two risks…

计算机视觉与模式识别 · 计算机科学 2021-11-15 Ziheng Xia , Ganggang Dong , Penghui Wang , Hongwei Liu

Traditional supervised learning makes the closed-world assumption that the classes appeared in the test data must have appeared in training. This also applies to text learning or text classification. As learning is used increasingly in…

计算与语言 · 计算机科学 2017-09-27 Lei Shu , Hu Xu , Bing Liu

Existing open-set recognition (OSR) studies typically assume that each image contains only one class label, with the unknown test set (negative) having a disjoint label space from the known test set (positive), a scenario referred to as…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Xu Yin , Fei Pan , Guoyuan An , Yuchi Huo , Zixuan Xie , Sung-Eui Yoon

Large occlusions result in a significant decline in image classification accuracy. During inference, diverse types of unseen occlusions introduce out-of-distribution data to the classification model, leading to accuracy dropping as low as…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Ketan Kotwal , Tanay Deshmukh , Preeti Gopal

Supervised classification methods often assume that evaluation data is drawn from the same distribution as training data and that all classes are present for training. However, real-world classifiers must handle inputs that are far from the…

计算机视觉与模式识别 · 计算机科学 2020-09-11 Ryne Roady , Tyler L. Hayes , Christopher Kanan

Open set recognition (OSR), aiming to simultaneously classify the seen classes and identify the unseen classes as 'unknown', is essential for reliable machine learning.The key challenge of OSR is how to reduce the empirical classification…

计算机视觉与模式识别 · 计算机科学 2021-09-08 Guangyao Chen , Peixi Peng , Xiangqian Wang , Yonghong Tian

In open set recognition (OSR), almost all existing methods are designed specially for recognizing individual instances, even these instances are collectively coming in batch. Recognizers in decision either reject or categorize them to some…

机器学习 · 计算机科学 2020-03-24 Chuanxing Geng , Songcan Chen

The limitations of existing Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR) methods lie in their confinement by the closed-environment assumption, hindering their effective and robust handling of unknown target categories…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Xiayang Xiao , Zhuoxuan Li , Ruyi Zhang , Jiacheng Chen , Haipeng Wang

Classic supervised learning makes the closed-world assumption, meaning that classes seen in testing must have been seen in training. However, in the dynamic world, new or unseen class examples may appear constantly. A model working in such…

计算与语言 · 计算机科学 2019-03-05 Hu Xu , Bing Liu , Lei Shu , P. Yu

The current generation of deep neural networks has achieved close-to-human results on "closed-set" image recognition; that is, the classes being evaluated overlap with the training classes. Many recent methods attempt to address the…

图像与视频处理 · 电气工程与系统科学 2021-10-22 Zongyuan Ge , Xin Wang

The problem of open-set recognition is considered. While previous approaches only consider this problem in the context of large-scale classifier training, we seek a unified solution for this and the low-shot classification setting. It is…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Bo Liu , Hao Kang , Haoxiang Li , Gang Hua , Nuno Vasconcelos

One promising approach to dealing with datapoints that are outside of the initial training distribution (OOD) is to create new classes that capture similarities in the datapoints previously rejected as uncategorizable. Systems that generate…

机器学习 · 计算机科学 2020-02-25 Jeremy Nixon , Jeremiah Liu , David Berthelot

A desirable open world recognition (OWR) system requires performing three tasks: (1) Open set recognition (OSR), i.e., classifying the known (classes seen during training) and rejecting the unknown (unseen$/$novel classes) online; (2)…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Fulin Gao , Weimin Zhong , Zhixing Cao , Xin Peng , Zhi Li

While today's robots are able to perform sophisticated tasks, they can only act on objects they have been trained to recognize. This is a severe limitation: any robot will inevitably see new objects in unconstrained settings, and thus will…

机器人学 · 计算机科学 2019-06-05 Massimiliano Mancini , Hakan Karaoguz , Elisa Ricci , Patric Jensfelt , Barbara Caputo

Deep learning has enabled realistic face manipulation (i.e., deepfake), which poses significant concerns over the integrity of the media in circulation. Most existing deep learning techniques for deepfake detection can achieve promising…

计算机视觉与模式识别 · 计算机科学 2022-12-26 Bosheng Yan , Chang-Tsun Li , Xuequan Lu