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Related papers: All Beings Are Equal in Open Set Recognition

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Existing semi-supervised learning (SSL) methods assume that labeled and unlabeled data share the same class space. However, in real-world applications, unlabeled data always contain classes not present in the labeled set, which may cause…

Machine Learning · Computer Science 2024-01-17 Wenjuan Xi , Xin Song , Weili Guo , Yang Yang

Real world data often have a long-tailed and open-ended distribution. A practical recognition system must classify among majority and minority classes, generalize from a few known instances, and acknowledge novelty upon a never seen…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Ziwei Liu , Zhongqi Miao , Xiaohang Zhan , Jiayun Wang , Boqing Gong , Stella X. Yu

Convolutional neural networks (CNNs) can learn directly from raw data, resulting in exceptional performance across various research areas. However, factors present in non-controllable environments such as unlabeled datasets with varying…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Lucas Fernando Alvarenga e Silva , Samuel Felipe dos Santos , Nicu Sebe , Jurandy Almeida

Handling entirely unknown data is a challenge for any deployed classifier. Classification models are typically trained on a static pre-defined dataset and are kept in the dark for the open unassigned feature space. As a result, they…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Tobias Koch , Christian Riess , Thomas Köhler

With the human pursuit of knowledge, open-set object detection (OSOD) has been designed to identify unknown objects in a dynamic world. However, an issue with the current setting is that all the predicted unknown objects share the same…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Jiyang Zheng , Weihao Li , Jie Hong , Lars Petersson , Nick Barnes

Humans have a natural instinct to identify unknown object instances in their environments. The intrinsic curiosity about these unknown instances aids in learning about them, when the corresponding knowledge is eventually available. This…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 K J Joseph , Salman Khan , Fahad Shahbaz Khan , Vineeth N Balasubramanian

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…

Machine Learning · Computer Science 2020-03-24 Chuanxing Geng , Songcan Chen

Open-World Recognition (OWR) is an emerging field that makes a machine learning model competent in rejecting the unknowns, managing them, and incrementally adding novel samples to the base knowledge. However, this broad objective is not…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Gusti Ahmad Fanshuri Alfarisy , Owais Ahmed Malik , Ong Wee Hong

Fueled by deep learning, computer-aided diagnosis achieves huge advances. However, out of controlled lab environments, algorithms could face multiple challenges. Open set recognition (OSR), as an important one, states that categories unseen…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Mingyuan Liu , Lu Xu , Jicong Zhang

Open-World Object Detection (OWOD) extends object detection problem to a realistic and dynamic scenario, where a detection model is required to be capable of detecting both known and unknown objects and incrementally learning newly…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Ruohuan Fang , Guansong Pang , Lei Zhou , Xiao Bai , Jin Zheng

Open-set recognition (OSR) aims to simultaneously detect unknown-class samples and classify known-class samples. Most of the existing OSR methods are inductive methods, which generally suffer from the domain shift problem that the learned…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Jiayin Sun , Qiulei Dong

Open set recognition is an emerging research area that aims to simultaneously classify samples from predefined classes and identify the rest as 'unknown'. In this process, one of the key challenges is to reduce the risk of generalizing the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Guangyao Chen , Limeng Qiao , Yemin Shi , Peixi Peng , Jia Li , Tiejun Huang , Shiliang Pu , Yonghong Tian

Detecting both known and unknown objects is a fundamental skill for robot manipulation in unstructured environments. Open-set object detection (OSOD) is a promising direction to handle the problem consisting of two subtasks: objects and…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Zhongxiang Zhou , Yifei Yang , Yue Wang , Rong Xiong

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)…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Fulin Gao , Weimin Zhong , Zhixing Cao , Xin Peng , Zhi Li

Current mainstream SAR image object detection methods still lack robustness when dealing with unknown objects in open environments. Open-set detection aims to enable detectors trained on a closed set to detect all known objects and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Xiayang Xiao , Zhuoxuan Li , Haipeng Wang

Open-Set Domain Adaptation for Semantic Segmentation (OSDA-SS) presents a significant challenge, as it requires both domain adaptation for known classes and the distinction of unknowns. Existing methods attempt to address both tasks within…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Wenqi Ren , Weijie Wang , Meng Zheng , Ziyan Wu , Yang Tang , Zhun Zhong , Nicu Sebe

Open-Set Domain Adaptation (OSDA) assumes that a target domain contains unknown classes, which are not discovered in a source domain. Existing domain adversarial learning methods are not suitable for OSDA because distribution matching with…

Machine Learning · Computer Science 2022-10-25 JoonHo Jang , Byeonghu Na , DongHyeok Shin , Mingi Ji , Kyungwoo Song , Il-Chul Moon

Deep learners tend to perform well when trained under the closed set assumption but struggle when deployed under open set conditions. This motivates the field of Open Set Recognition in which we seek to give deep learners the ability to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Daniel Brignac , Abhijit Mahalanobis

Traditional supervised learning aims to train a classifier in the closed-set world, where training and test samples share the same label space. In this paper, we target a more challenging and realistic setting: open-set learning (OSL),…

Machine Learning · Computer Science 2021-07-01 Zhen Fang , Jie Lu , Anjin Liu , Feng Liu , Guangquan Zhang

The objective of Open set recognition (OSR) is to learn a classifier that can reject the unknown samples while classifying the known classes accurately. In this paper, we propose a self-supervision method, Detransformation Autoencoder…

Machine Learning · Computer Science 2022-07-07 Jingyun Jia , Philip K. Chan