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Deep neural networks have made breakthroughs in a wide range of visual understanding tasks. A typical challenge that hinders their real-world applications is that unknown samples may be fed into the system during the testing phase, but…

计算机视觉与模式识别 · 计算机科学 2021-02-10 Xin Sun , Chi Zhang , Guosheng Lin , Keck-Voon Ling

Open set recognition is designed to identify known classes and to reject unknown classes simultaneously. Specifically, identifying known classes and rejecting unknown classes correspond to reducing the empirical risk and the open space…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Ziheng Xia , Penghui Wang , Ganggang Dong , Hongwei Liu

In conventional supervised learning, a training dataset is given with ground-truth labels from a known label set, and the learned model will classify unseen instances to known labels. This paper studies a new problem setting in which there…

机器学习 · 计算机科学 2024-06-03 Peng Zhao , Jia-Wei Shan , Yu-Jie Zhang , Zhi-Hua Zhou

In the unsupervised open set domain adaptation (UOSDA), the target domain contains unknown classes that are not observed in the source domain. Researchers in this area aim to train a classifier to accurately: 1) recognize unknown target…

机器学习 · 计算机科学 2020-06-24 Li Zhong , Zhen Fang , Feng Liu , Bo Yuan , Guangquan Zhang , Jie Lu

State-of-the-art deep neural network recognition systems are designed for a static and closed world. It is usually assumed that the distribution at test time will be the same as the distribution during training. As a result, classifiers are…

计算机视觉与模式识别 · 计算机科学 2019-02-28 Benjamin J. Meyer , Tom Drummond

Educational systems often assume learners can identify their knowledge gaps, yet research consistently shows that students struggle to recognize what they don't know they need to learn-the "unknown unknowns" problem. This paper presents a…

人机交互 · 计算机科学 2025-09-10 Jinwen Tang , Qiming Guo , Zhicheng Tang , Yi Shang

The classification of textual data often yields important information. Most classifiers work in a closed world setting where the classifier is trained on a known corpus, and then it is tested on unseen examples that belong to one of the…

机器学习 · 计算机科学 2022-12-27 Justin Leo , Jugal Kalita

Deep networks have produced significant gains for various visual recognition problems, leading to high impact academic and commercial applications. Recent work in deep networks highlighted that it is easy to generate images that humans…

计算机视觉与模式识别 · 计算机科学 2015-11-20 Abhijit Bendale , Terrance Boult

Modern object detectors have achieved impressive progress under the close-set setup. However, open-set object detection (OSOD) remains challenging since objects of unknown categories are often misclassified to existing known classes. In…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Jiaming Han , Yuqiang Ren , Jian Ding , Xingjia Pan , Ke Yan , Gui-Song Xia

In recent years Deep Neural Network-based systems are not only increasing in popularity but also receive growing user trust. However, due to the closed-world assumption of such systems, they cannot recognize samples from unknown classes and…

机器学习 · 计算机科学 2025-01-15 Joanna Komorniczak , Pawel Ksieniewicz

Deep neural networks have achieved state-of-the-art performance in a wide range of recognition/classification tasks. However, when applying deep learning to real-world applications, there are still multiple challenges. A typical challenge…

机器学习 · 计算机科学 2021-02-10 Xin Sun , Zhenning Yang , Chi Zhang , Guohao Peng , Keck-Voon Ling

Driven by advancements in deep learning, computer-aided diagnoses have made remarkable progress. However, outside controlled laboratory settings, algorithms may encounter several challenges. In the medical domain, these difficulties often…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Arnav Aditya , Nitin Kumar , Saurabh Shigwan

Open-world object detection (OWOD) is a challenging problem that combines object detection with incremental learning and open-set learning. Compared to standard object detection, the OWOD setting is task to: 1) detect objects seen during…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Jinan Yu , Liyan Ma , Zhenglin Li , Yan Peng , Shaorong Xie

In open-world learning, an agent starts with a set of known classes, detects, and manages things that it does not know, and learns them over time from a non-stationary stream of data. Open-world learning is related to but also distinct from…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Mohsen Jafarzadeh , Akshay Raj Dhamija , Steve Cruz , Chunchun Li , Touqeer Ahmad , Terrance E. Boult

Current deep learning methods are regarded as favorable if they empirically perform well on dedicated test sets. This mentality is seamlessly reflected in the resurfacing area of continual learning, where consecutively arriving data is…

机器学习 · 计算机科学 2023-01-25 Martin Mundt , Yongwon Hong , Iuliia Pliushch , Visvanathan Ramesh

Few-shot open-set recognition aims to classify both seen and novel images given only limited training data of seen classes. The challenge of this task is that the model is required not only to learn a discriminative classifier to classify…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Nan Song , Chi Zhang , Guosheng Lin

A typical assumption in state-of-the-art self-localization models is that an annotated training dataset is available in the target workspace. However, this does not always hold when a robot travels in a general open-world. This study…

机器学习 · 计算机科学 2024-03-19 Kenta Tsukahara , Kanji Tanaka , Daiki Iwata

Open-world machine learning is an emerging technique in artificial intelligence, where conventional machine learning models often follow closed-world assumptions, which can hinder their ability to retain previously learned knowledge for…

机器学习 · 计算机科学 2025-11-26 Jitendra Parmar , Praveen Singh Thakur

Models trained for classification often assume that all testing classes are known while training. As a result, when presented with an unknown class during testing, such closed-set assumption forces the model to classify it as one of the…

计算机视觉与模式识别 · 计算机科学 2019-04-03 Poojan Oza , Vishal M Patel

In open-set recognition (OSR), a promising strategy is exploiting pseudo-unknown data outside given $K$ known classes as an additional $K$+$1$-th class to explicitly model potential open space. However, treating unknown classes without…

计算机视觉与模式识别 · 计算机科学 2024-02-01 Chaohua Li , Enhao Zhang , Chuanxing Geng , SongCan Chen