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19 Results Found

  • Article
  • Open Access
6 Citations
2,339 Views
25 Pages

3 September 2024

Current synthetic aperture radar (SAR) automatic target recognition (ATR) algorithms primarily operate under the closed-set assumption, implying that all target classes have been previously learned during the training phase. However, in open scenario...

  • Article
  • Open Access
4 Citations
3,056 Views
13 Pages

2 February 2023

It is difficult to collect training samples for all types of synthetic aperture radar (SAR) targets. A realistic problem comes when unseen categories exist that are not included in training and benchmark data at the time of recognition, which is defi...

  • Article
  • Open Access
4 Citations
2,111 Views
20 Pages

Open-Set Recognition Model for SAR Target Based on Capsule Network with the KLD

  • Chunyun Jiang,
  • Huiqiang Zhang,
  • Ronghui Zhan,
  • Wenyu Shu and
  • Jun Zhang

26 August 2024

Synthetic aperture radar (SAR) automatic target recognition (ATR) technology has seen significant advancements. Despite these advancements, the majority of research still operates under the closed-set assumption, wherein all test samples belong to cl...

  • Article
  • Open Access
17 Citations
3,083 Views
19 Pages

26 December 2022

The network system has become an indispensable component of modern infrastructure. DDoS attacks and their variants remain a potential and persistent cybersecurity threat. DDoS attacks block services to legitimate users by incorporating large amounts...

  • Article
  • Open Access
30 Citations
5,704 Views
24 Pages

DDoS attacks remain a persistent cybersecurity threat, blocking services to legitimate users and causing significant damage to reputation, finances, and potential customers. For the detection of DDoS attacks, machine learning techniques such as super...

  • Article
  • Open Access
4 Citations
4,836 Views
24 Pages

24 April 2024

Although deep neural networks have made significant progress in tasks related to remote sensing image scene classification, most of these tasks assume that the training and test data are independently and identically distributed. However, when remote...

  • Article
  • Open Access
24 Citations
4,041 Views
23 Pages

Intelligent Radar Jamming Recognition in Open Set Environment Based on Deep Learning Networks

  • Yu Zhou,
  • Song Shang,
  • Xing Song,
  • Shiyu Zhang,
  • Tianqi You and
  • Linrang Zhang

8 December 2022

Jamming recognition is an essential step in radar detection and anti-jamming in the complex electromagnetic environment. When radars detect an unknown type of jamming that does not occur in the training set, the existing radar jamming recognition alg...

  • Article
  • Open Access
2 Citations
2,081 Views
22 Pages

LiOSR-SAR: Lightweight Open-Set Recognizer for SAR Imageries

  • Jie Yang,
  • Jihong Gu,
  • Jingyu Xin,
  • Zhou Cong and
  • Dazhi Ding

9 October 2024

Open-set recognition (OSR) from synthetic aperture radar (SAR) imageries plays a crucial role in maritime and terrestrial monitoring. Nevertheless, numerous deep learning-based SAR classifiers struggle with unknown targets outside of the training dat...

  • Article
  • Open Access
339 Views
27 Pages

Open-Set UAV Signal Identification Using Learnable Embeddings and Energy-Based Inference

  • Yudong Long,
  • Huaji Zhou,
  • Wenbo Yu,
  • Huan Ren,
  • Feng Zhou and
  • Yufei Zhang

6 January 2026

Reliable recognition of unmanned aerial vehicle (UAV) communication signals is essential for low-altitude airspace safety and UAV monitoring. In practical electromagnetic environments, UAV signals exhibit complex time-frequency characteristics, and u...

  • Article
  • Open Access
16 Citations
8,404 Views
19 Pages

Open Set Audio Classification Using Autoencoders Trained on Few Data

  • Javier Naranjo-Alcazar,
  • Sergi Perez-Castanos,
  • Pedro Zuccarello,
  • Fabio Antonacci and
  • Maximo Cobos

3 July 2020

Open-set recognition (OSR) is a challenging machine learning problem that appears when classifiers are faced with test instances from classes not seen during training. It can be summarized as the problem of correctly identifying instances from a know...

  • Article
  • Open Access
5 Citations
2,132 Views
20 Pages

Vehicle Make and Model Recognition as an Open-Set Recognition Problem and New Class Discovery

  • Diana-Itzel Vázquez-Santiago,
  • Héctor-Gabriel Acosta-Mesa and
  • Efrén Mezura-Montes

One of the main limitations of traditional neural-network-based classifiers is the assumption that all query data are well represented within their training set. Unfortunately, in real-life scenarios, this is often not the case, and unknown class dat...

  • Article
  • Open Access
623 Views
16 Pages

Adapting a Previously Proposed Open-Set Recognition Method for Time-Series Data: A Biometric User Identification Case Study

  • András Pál Halász,
  • Nawar Al Hemeary,
  • Lóránt Szabolcs Daubner,
  • János Juhász,
  • Tamás Zsedrovits and
  • Kálmán Tornai

11 October 2025

Conventional classifiers are generally unable to identify samples from classes absent during the model’s training. However, such samples frequently emerge in real-world scenarios, necessitating the extension of classifier capabilities. Open-Set...

  • Article
  • Open Access
1,084 Views
24 Pages

Unified Open-Set Recognition and Novel Class Discovery via Prototype-Guided Representation

  • Jiuqing Dong,
  • Sicheng Wang,
  • Jianxin Xue,
  • Siwen Zhang,
  • Zixin Li and
  • Heng Zhou

27 October 2025

The existing research on open-set recognition (OSR) and novel class discovery (NCD) has largely treated these tasks as independent fields. OSR aims to identify samples that do not belong to the training set classes, while NCD seeks to further classif...

  • Article
  • Open Access
2 Citations
2,047 Views
16 Pages

Research on the Enhancement Method of Specific Emitter Open Set Recognition

  • Chengyuan Sun,
  • Yihang Du,
  • Xiaoqiang Qiao,
  • Hao Wu and
  • Tao Zhang

24 October 2023

Open set recognition (OSR) aims at dealing with unknown classes that are not included in the train set. However, existing OSR methods rely on deep learning networks that perform supervised learning on known classes in the train set, resulting in poor...

  • Article
  • Open Access
6 Citations
2,096 Views
17 Pages

27 February 2023

Satellite-terrestrial-integrated internet of things (IoT) is an inevitable trend in future development, but open satellite link and massive IoT device access will bring serious security risks. However, most existing recognition models are unable to d...

  • Article
  • Open Access
2 Citations
2,590 Views
24 Pages

Research on Open-Set Recognition Methods for Rolling Bearing Fault Diagnosis

  • Jia Xu,
  • Yan Wang,
  • Renyi Xu,
  • Hailin Wang and
  • Xinzhi Zhou

10 May 2025

In rolling bearing fault diagnosis, when an unknown fault is present, the Closed-Set Recognition (CSR) method tends to misclassify it as a known fault. To address this issue, an Open-Set Recognition (OSR) framework is proposed for rolling bearing fau...

  • Article
  • Open Access
2 Citations
1,885 Views
19 Pages

Comparing CNN and ViT for Open-Set Face Recognition

  • Ander Galván,
  • Mariví Higuero,
  • Ane Sanz,
  • Asier Atutxa,
  • Eduardo Jacob and
  • Mario Saavedra

27 September 2025

At present, there is growing interest in automated biometric identification applications. For these, it is crucial to have a system capable of accurately identifying a specific group of people while also detecting individuals who do not belong to tha...

  • Article
  • Open Access
7 Citations
3,160 Views
19 Pages

Efficient Open-Set Recognition for Interference Signals Based on Convolutional Prototype Learning

  • Xiangwei Chen,
  • Zhijin Zhao,
  • Xueyi Ye,
  • Shilian Zheng,
  • Caiyi Lou and
  • Xiaoniu Yang

26 April 2022

Interference classification plays an important role in anti-jamming communication. Although the existing interference signal recognition methods based on deep learning have a higher accuracy than traditional methods, these have poor robustness while...

  • Article
  • Open Access
83 Citations
12,673 Views
13 Pages

Detection of Unknown DDoS Attacks with Deep Learning and Gaussian Mixture Model

  • Chin-Shiuh Shieh,
  • Wan-Wei Lin,
  • Thanh-Tuan Nguyen,
  • Chi-Hong Chen,
  • Mong-Fong Horng and
  • Denis Miu

4 June 2021

DDoS (Distributed Denial of Service) attacks have become a pressing threat to the security and integrity of computer networks and information systems, which are indispensable infrastructures of modern times. The detection of DDoS attacks is a challen...