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In congested electromagnetic environments, cognitive radios require knowledge about other emitters in order to optimize their dynamic spectrum access strategy. Deep learning classification algorithms have been used to recognize the wireless…

信号处理 · 电气工程与系统科学 2021-08-04 Samuel R. Shebert , Anthony F. Martone , R. Michael Buehrer

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 set classification (OSC) tackles the problem of determining whether the data are in-class or out-of-class during inference, when only provided with a set of in-class examples at training time. Traditional OSC methods usually train…

机器学习 · 计算机科学 2020-08-12 Yang Yang , Zhen-Qiang Sun , Hui Xiong , Jian Yang

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

Open set domain adaptation aims to diminish the domain shift across domains, with partially shared classes. There exist unknown target samples out of the knowledge of source domain. Compared to the close set setting, how to separate the…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Qianyu Feng , Guoliang Kang , Hehe Fan , Yi Yang

In open-set recognition, existing methods generally learn statically fixed decision boundaries using known classes to reject unknown classes. Though they have achieved promising results, such decision boundaries are evidently insufficient…

机器学习 · 计算机科学 2024-05-06 Haifeng Yang , Chuanxing Geng , Pong C. Yuen , Songcan Chen

Open set domain recognition has got the attention in recent years. The task aims to specifically classify each sample in the practical unlabeled target domain, which consists of all known classes in the manually labeled source domain and…

计算机视觉与模式识别 · 计算机科学 2021-05-13 Xinxing He , Yuan Yuan , Zhiyu Jiang

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…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Lucas Fernando Alvarenga e Silva , Samuel Felipe dos Santos , Nicu Sebe , Jurandy Almeida

Open-set Semi-supervised Learning (OSSL) holds a realistic setting that unlabeled data may come from classes unseen in the labeled set, i.e., out-of-distribution (OOD) data, which could cause performance degradation in conventional SSL…

机器学习 · 计算机科学 2024-05-21 Yang Yang , Nan Jiang , Yi Xu , De-Chuan Zhan

In real-world applications where confidence is key, like autonomous driving, the accurate detection and appropriate handling of classes differing from those used during training are crucial. Despite the proposal of various unknown object…

计算机视觉与模式识别 · 计算机科学 2024-11-11 Hejer Ammar , Nikita Kiselov , Guillaume Lapouge , Romaric Audigier

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

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…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Zhongxiang Zhou , Yifei Yang , Yue Wang , Rong Xiong

Deep Learning heavily depends on large labeled datasets which limits further improvements. While unlabeled data is available in large amounts, in particular in image recognition, it does not fulfill the closed world assumption of…

机器学习 · 计算机科学 2020-12-24 Maximilian Augustin , Matthias Hein

The problem of detecting a novel class at run time is known as Open Set Detection & is important for various real-world applications like medical application, autonomous driving, etc. Open Set Detection within context of deep learning…

计算机视觉与模式识别 · 计算机科学 2022-11-04 Risheek Garrepalli

In search, exploration, and reconnaissance tasks performed with autonomous ground vehicles, an image classification capability is needed for specifically identifying targeted objects (relevant classes) and at the same time recognize when a…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Spiridon Kasapis , Geng Zhang , Jonathon Smereka , Nickolas Vlahopoulos

We present an analysis of predictive uncertainty based out-of-distribution detection for different approaches to estimate various models' epistemic uncertainty and contrast it with extreme value theory based open set recognition. While the…

机器学习 · 计算机科学 2019-08-27 Martin Mundt , Iuliia Pliushch , Sagnik Majumder , Visvanathan Ramesh

Convolutional Neural Networks (CNNs) are commonly designed for closed set arrangements, where test instances only belong to some "Known Known" (KK) classes used in training. As such, they predict a class label for a test sample based on the…

计算机视觉与模式识别 · 计算机科学 2021-10-04 Md Tahmid Hossain , Shyh Wei Teng , Guojun Lu , Ferdous Sohel

Image classification in the open-world must handle out-of-distribution (OOD) images. Systems should ideally reject OOD images, or they will map atop of known classes and reduce reliability. Using open-set classifiers that can reject OOD…

计算机视觉与模式识别 · 计算机科学 2022-01-10 Mohsen Jafarzadeh , Touqeer Ahmad , Akshay Raj Dhamija , Chunchun Li , Steve Cruz , Terrance E. Boult

Traditional semi-supervised object detection methods assume a fixed set of object classes (in-distribution or ID classes) during training and deployment, which limits performance in real-world scenarios where unseen classes…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Garvita Allabadi , Ana Lucic , Siddarth Aananth , Tiffany Yang , Yu-Xiong Wang , Vikram Adve

Classification is a fundamental task in machine learning and data mining. Existing classification methods are designed to classify unknown instances within a set of previously known training classes. Such a classification takes the form of…

机器学习 · 计算机科学 2018-03-02 Wajdi Dhifli , Abdoulaye Baniré Diallo