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393 Results Found

  • Article
  • Open Access
2 Citations
1,846 Views
31 Pages

22 January 2025

Subspace learning has achieved promising performance as a key technique for unsupervised feature selection. The strength of subspace learning lies in its ability to identify a representative subspace encompassing a cluster of features that are capabl...

(This article belongs to the Special Issue Statistical Methods for Modeling High-Dimensional and Complex Data: Second Edition)
  • Article
  • Open Access
9 Citations
2,590 Views
22 Pages

This paper proposes a novel robust latent common subspace learning (RLCSL) method by integrating low-rank and sparse constraints into a joint learning framework. Specifically, we transform the data from source and target domains into a latent common...

(This article belongs to the Special Issue Recent Advances in Representation Learning)
  • Article
  • Open Access
8 Citations
13,277 Views
24 Pages

Extended Averaged Learning Subspace Method for Hyperspectral Data Classification

  • Hasi Bagan,
  • Wataru Takeuchi,
  • Yoshiki Yamagata,
  • Xiaohui Wang and
  • Yoshifumi Yasuoka

3 June 2009

Averaged learning subspace methods (ALSM) have the advantage of being easily implemented and appear to outperform in classification problems of hyperspectral images. However, there remain some open and challenging problems, which if addressed, could...

(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Japan)
  • Article
  • Open Access
397 Views
29 Pages

5 September 2026

Supervised learning in fields such as genomics and medical imaging is often hindered by the high cost of expert data annotation. Active learning addresses this bottleneck by iteratively selecting the most informative unlabeled samples for labeling. H...

(This article belongs to the Special Issue Advances in Machine Learning, High-Dimensional Inference, Shrinkage Estimation, and Model Validation)
  • Article
  • Open Access
46 Citations
5,619 Views
20 Pages

8 March 2018

This paper proposes a randomized subspace learning based anomaly detector (RSLAD) for hyperspectral imagery (HSI). Improved from robust principal component analysis, the RSLAD assumes that the background matrix is low-rank, and the anomaly matrix is...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
4 Citations
5,718 Views
19 Pages

14 February 2018

This paper considers two important problems for autonomous robot navigation in a dynamic environment, where the goal is to predict pedestrian motion and control a robot with the prediction for safe navigation. While there are several methods for pred...

(This article belongs to the Special Issue Smart Sensors for Mechatronic and Robotic Systems)
  • Article
  • Open Access
12 Citations
3,869 Views
29 Pages

Robust Face Recognition Based on a New Supervised Kernel Subspace Learning Method

  • Ali Khalili Mobarakeh,
  • Juan Antonio Cabrera Carrillo and
  • Juan Jesús Castillo Aguilar

6 April 2019

Face recognition is one of the most popular techniques to achieve the goal of figuring out the identity of a person. This study has been conducted to develop a new non-linear subspace learning method named “supervised kernel locality-based disc...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
37 Citations
6,044 Views
21 Pages

1 June 2019

As synthetic aperture radar (SAR) is playing an increasingly important role in Earth observations, many new methods and technologies have been proposed for change detection using multi-temporal SAR images. Especially with the development of deep lear...

(This article belongs to the Special Issue SAR in Big Data Era)
  • Article
  • Open Access
2,115 Views
19 Pages

A Bi-Directional Two-Dimensional Deep Subspace Learning Network with Sparse Representation for Object Recognition

  • Xiaoxue Li,
  • Weijia Feng,
  • Xiaofeng Wang,
  • Jia Guo,
  • Yuanxu Chen,
  • Yumeng Yang,
  • Chao Wang,
  • Xinyu Zuo and
  • Manlu Xu

5 September 2023

A principal component analysis network (PCANet), as one of the representative deep subspace learning networks, utilizes principal component analysis (PCA) to learn filters that represent the dominant structural features of objects. However, the filte...

(This article belongs to the Special Issue Applications of Artificial Intelligence, Machine Learning, Deep Learning, and Explainable AI (XAI))
  • Article
  • Open Access
5 Citations
4,188 Views
14 Pages

5 June 2020

Multidimensional nuclear magnetic resonance (NMR) spectroscopy is one of the most crucial detection tools for molecular structure analysis and has been widely used in biomedicine and chemistry. However, the development of NMR spectroscopy is hampered...

(This article belongs to the Special Issue Signal Processing and Machine Learning for Biomedical Data)
  • Article
  • Open Access
10 Citations
4,265 Views
21 Pages

18 September 2019

Decrease in air quality is one of the most crucial threats to human health. There is an imperative and necessary need for more accurate air quality prediction. To meet this need, we propose a novel long short-term memory-based deep random subspace le...

(This article belongs to the Section Air Quality)
  • Article
  • Open Access
26 Citations
5,462 Views
14 Pages

23 November 2018

Vehicle detection is a key component of environmental sensing systems for Intelligent Vehicles (IVs). The traditional shallow model and offline learning-based vehicle detection method are not able to satisfy the real-world challenges of environmental...

(This article belongs to the Special Issue Deep Learning-Based Image Sensors)
  • Article
  • Open Access
40 Citations
5,670 Views
20 Pages

3 November 2021

Hyperspectral image (HSI) clustering is a major challenge due to the redundant spectral information in HSIs. In this paper, we propose a novel deep subspace clustering method that extracts spatial–spectral features via contrastive learning. First, we...

  • Article
  • Open Access
22 Citations
3,455 Views
18 Pages

5 January 2024

As one of the most important techniques for hyperspectral image dimensionality reduction, band selection has received considerable attention, whereas self-representation subspace clustering-based band selection algorithms have received quite a lot of...

(This article belongs to the Special Issue Deep Neural Networks for Hyperspectral Remote Sensing Image Processing)
  • Article
  • Open Access
32 Citations
3,877 Views
26 Pages

14 September 2020

During the process of signal sampling and digital imaging, hyperspectral images (HSI) inevitably suffer from the contamination of mixed noises. The fidelity and efficiency of subsequent applications are considerably reduced along with this degradatio...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
662 Views
23 Pages

7 July 2026

Finger vein recognition (FVR) has significant potential in biometrics due to its high accuracy and intrinsic liveness detection capabilities. However, the increasingly stringent privacy regulations have presented severe data security challenges for t...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
7 Citations
3,896 Views
20 Pages

12 August 2021

During the imaging process, hyperspectral image (HSI) is inevitably affected by various noises, such as Gaussian noise, impulse noise, stripes or deadlines. As one of the pre-processing steps, the removal of mixed noise for HSI has a vital impact on...

(This article belongs to the Section Environmental Remote Sensing)
  • Article
  • Open Access
1 Citations
1,673 Views
21 Pages

3 February 2026

Semiconductor manufacturing equipment such as vacuum pumps, wafer handling mechanisms, etching machines, and deposition systems operates for a long time under high vacuum, high temperature, strong electromagnetic, and high-precision continuous produc...

(This article belongs to the Section Machines Testing and Maintenance)
  • Article
  • Open Access
164 Citations
11,204 Views
24 Pages

Blockchain and Random Subspace Learning-Based IDS for SDN-Enabled Industrial IoT Security

  • Abdelouahid Derhab,
  • Mohamed Guerroumi,
  • Abdu Gumaei,
  • Leandros Maglaras,
  • Mohamed Amine Ferrag,
  • Mithun Mukherjee and
  • Farrukh Aslam Khan

15 July 2019

The industrial control systems are facing an increasing number of sophisticated cyber attacks that can have very dangerous consequences on humans and their environments. In order to deal with these issues, novel technologies and approaches should be...

(This article belongs to the Special Issue Software-Defined Networking for Sensor Networks and Internet of Things)
  • Article
  • Open Access
6 Citations
4,061 Views
15 Pages

6 November 2018

Data clustering is an important research topic in data mining and signal processing communications. In all the data clustering methods, the subspace spectral clustering methods based on self expression model, e.g., the Sparse Subspace Clustering (SSC...

  • Article
  • Open Access
1 Citations
2,605 Views
16 Pages

Neural Subspace Learning for Surface Defect Detection

  • Bin Liu,
  • Weifeng Chen,
  • Bo Li and
  • Xiuping Liu

19 November 2022

Surface defect inspection is a key technique in industrial product assessments. Compared with other visual applications, industrial defect inspection suffers from a small sample problem and a lack of labeled data. Therefore, conventional deep-learnin...

(This article belongs to the Special Issue Mathematics-Based Methods in Artificial Intelligence, Pattern Recognition and Deep Learning)
  • Article
  • Open Access
1,687 Views
22 Pages

27 May 2024

Subspace clustering algorithms have demonstrated remarkable success across diverse fields, including object segmentation, gene clustering, and recommendation systems. However, they often face challenges, such as omitting cluster information and the n...

(This article belongs to the Special Issue Deep Learning and Machine Learning in Image Processing and Pattern Recognition)
  • Article
  • Open Access
7 Citations
3,104 Views
10 Pages

Physical Unclonable Functions (PUFs) are promising security primitives for resource-constrained IoT devices. A critical aspect of PUF security research is to identify all potential security risks. This information about vulnerabilities is beneficial...

(This article belongs to the Topic Wireless Sensor Networks)
  • Article
  • Open Access
1,901 Views
21 Pages

Large-Scale Subspace Clustering Based on Purity Kernel Tensor Learning

  • Yilu Zheng,
  • Shuai Zhao,
  • Xiaoqian Zhang,
  • Yinlong Xu and
  • Lifan Peng

In conventional subspace clustering methods, affinity matrix learning and spectral clustering algorithms are widely used for clustering tasks. However, these steps face issues, including high time consumption and spatial complexity, making large-scal...

(This article belongs to the Section Networks)
  • Article
  • Open Access
10 Citations
4,966 Views
25 Pages

Online Semantic Subspace Learning with Siamese Network for UAV Tracking

  • Yufei Zha,
  • Min Wu,
  • Zhuling Qiu,
  • Jingxian Sun,
  • Peng Zhang and
  • Wei Huang

19 January 2020

In urban environment monitoring, visual tracking on unmanned aerial vehicles (UAVs) can produce more applications owing to the inherent advantages, but it also brings new challenges for existing visual tracking approaches (such as complex background...

(This article belongs to the Special Issue Deep Learning Approaches for Urban Sensing Data Analytics)
  • Article
  • Open Access
4 Citations
2,992 Views
23 Pages

Regularized RKHS-Based Subspace Learning for Motor Imagery Classification

  • Linzhi Jiang,
  • Shuyu Liu,
  • Zhengming Ma,
  • Wenjie Lei and
  • Cheng Chen

27 January 2022

Brain–computer interface (BCI) technology allows people with disabilities to communicate with the physical environment. One of the most promising signals is the non-invasive electroencephalogram (EEG) signal. However, due to the non-stationary...

  • Article
  • Open Access
1 Citations
1,990 Views
29 Pages

1 October 2025

Hyperspectral imaging (HSI) systems often suffer from complex noise degradation during the imaging process, significantly impacting downstream applications. Deep learning-based methods, though effective, rely on impractical paired training data, whil...

  • Article
  • Open Access
47 Citations
6,977 Views
19 Pages

19 November 2018

Biometry based authentication and recognition have attracted greater attention due to numerous applications for security-conscious societies, since biometrics brings accurate and consistent identification. Face biometry possesses the merits of low in...

  • Article
  • Open Access
1 Citations
497 Views
21 Pages

19 May 2026

Few-Shot Class-Incremental Learning (FSCIL) aims to learn new classes with only a few samples, making it more challenging than traditional Class-Incremental Learning (CIL) due to the scarcity of available samples. The imbalance in sample distribution...

  • Article
  • Open Access
10 Citations
3,702 Views
19 Pages

Fusing Local and Global Information for One-Step Multi-View Subspace Clustering

  • Yiqiang Duan,
  • Haoliang Yuan,
  • Chun Sing Lai and
  • Loi Lei Lai

18 May 2022

Multi-view subspace clustering has drawn significant attention in the pattern recognition and machine learning research community. However, most of the existing multi-view subspace clustering methods are still limited in two aspects. (1) The subspace...

(This article belongs to the Special Issue Electrification of Smart Cities)
  • Article
  • Open Access
989 Views
21 Pages

Improving Individual-Specific SSVEP-BCI with Adaptive Channel and Subspace Selection in TRCA

  • Hui Li,
  • Guanghua Xu,
  • Shanzheng Feng,
  • Chenghang Du,
  • Chengcheng Han,
  • Jiachen Kuang and
  • Sicong Zhang

9 February 2026

The individual-specific steady-state visual evoked potential (SSVEP)-based brain–computer interface (BCI) is characterized by individual calibration data, resulting in satisfactory performance. However, existing individual-specific SSVEP-BCIs e...

(This article belongs to the Section Biomedical Sensors)
  • Article
  • Open Access
6 Citations
3,751 Views
19 Pages

31 January 2022

The holographic subsurface radar (HSR) is an effective remote sensing modality for surveying shallowly buried objects with high resolution images in plan-view. However, strong reflections from the rough surface and inhomogeneities obscure the detecti...

(This article belongs to the Special Issue Microwave Imaging of Subsurface Objects in Applications for Engineering Technologies: Instruments and Methods)
  • Article
  • Open Access
5 Citations
3,037 Views
12 Pages

In current research processes, mathematical learning has significantly impacted the brain’s plasticity and cognitive functions. While biochemical changes in brain have been investigated by magnetic resonance spectroscopy, our study attempts to...

(This article belongs to the Section Educational Neuroscience)
  • Article
  • Open Access
5 Citations
3,444 Views
22 Pages

2 April 2021

Low-rank representation with hypergraph regularization has achieved great success in hyperspectral imagery, which can explore global structure, and further incorporate local information. Existing hypergraph learning methods only construct the hypergr...

  • Article
  • Open Access
42 Citations
5,966 Views
20 Pages

Hierarchical Sparse Subspace Clustering (HESSC): An Automatic Approach for Hyperspectral Image Analysis

  • Kasra Rafiezadeh Shahi,
  • Mahdi Khodadadzadeh,
  • Laura Tusa,
  • Pedram Ghamisi,
  • Raimon Tolosana-Delgado and
  • Richard Gloaguen

28 July 2020

Hyperspectral imaging techniques are becoming one of the most important tools to remotely acquire fine spectral information on different objects. However, hyperspectral images (HSIs) require dedicated processing for most applications. Therefore, seve...

(This article belongs to the Special Issue Hyperspectral and Multispectral Imaging in Geology)
  • Article
  • Open Access
612 Views
24 Pages

Dual-Subspace Network for Few-Shot Fine-Grained Image Classification

  • Meijia Wang,
  • Guochao Wang,
  • Haozhen Chu,
  • Bin Yao,
  • Weichuan Zhang,
  • Yuan Wang and
  • Junpo Yang

8 May 2026

Few-shot fine-grained image classification aims to recognize subcategories with high visual similarity using only a limited number of annotated samples. Existing metric learning-based methods typically rely solely on spatial-domain features. Confined...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
3 Citations
3,201 Views
15 Pages

15 December 2021

Auto-encoder (AE)-based deep subspace clustering (DSC) methods aim to partition high-dimensional data into underlying clusters, where each cluster corresponds to a subspace. As a standard module in current AE-based DSC, the self-reconstruction cost p...

(This article belongs to the Special Issue Recent Advances in Computational Intelligence and Its Applications)
  • Article
  • Open Access
19 Citations
7,421 Views
16 Pages

20 July 2015

One key problem for the classification of multi-frequency polarimetric SAR images is to extract target features simultaneously in the aspects of frequency, polarization and spatial texture. This paper proposes a new classification method for multi-fr...

  • Article
  • Open Access
8 Citations
4,451 Views
13 Pages

Hierarchical Discriminant Analysis

  • Di Lu,
  • Chuntao Ding,
  • Jinliang Xu and
  • Shangguang Wang

18 January 2018

The Internet of Things (IoT) generates lots of high-dimensional sensor intelligent data. The processing of high-dimensional data (e.g., data visualization and data classification) is very difficult, so it requires excellent subspace learning algorith...

(This article belongs to the Special Issue Sensor Intelligent Data Analysis for Social Networks: Theory and Applications)
  • Article
  • Open Access
18 Citations
4,313 Views
19 Pages

24 February 2022

In shallow water, passive sonar usually has great difficulty in discriminating a surface acoustic source from an underwater one. To solve this problem, a supervised machine learning method using only one hydrophone is implemented in this paper. First...

(This article belongs to the Section Physical Oceanography)
  • Article
  • Open Access
5 Citations
3,515 Views
16 Pages

5 September 2018

In this study, due to the redundant and irrelevant features contained in the multi-dimensional feature parameter set, the information fusion performance of the subspace learning algorithm was reduced. To solve the above problem, a mutual information...

  • Article
  • Open Access
39 Citations
7,829 Views
24 Pages

23 February 2018

Inspired by enormous success of fully convolutional network (FCN) in semantic segmentation, as well as the similarity between semantic segmentation and pixel-by-pixel polarimetric synthetic aperture radar (PolSAR) image classification, exploring how...

(This article belongs to the Special Issue Deep Learning for Remote Sensing)
  • Article
  • Open Access
6 Citations
2,344 Views
14 Pages

Adapting Multiple Distributions for Bridging Emotions from Different Speech Corpora

  • Yuan Zong,
  • Hailun Lian,
  • Hongli Chang,
  • Cheng Lu and
  • Chuangao Tang

5 September 2022

In this paper, we focus on a challenging, but interesting, task in speech emotion recognition (SER), i.e., cross-corpus SER. Unlike conventional SER, a feature distribution mismatch may exist between the labeled source (training) and target (testing)...

(This article belongs to the Topic Machine and Deep Learning)
  • Article
  • Open Access
20 Citations
3,723 Views
24 Pages

18 February 2021

Many aerial images with similar appearances have different but correlated scene labels, which causes the label ambiguity. Label distribution learning (LDL) can express label ambiguity by giving each sample a label distribution. Thus, a sample contrib...

  • Article
  • Open Access
19 Citations
8,615 Views
15 Pages

Visual odometry (VO) refers to incremental estimation of the motion state of an agent (e.g., vehicle and robot) by using image information, and is a key component of modern localization and navigation systems. Addressing the monocular VO problem, thi...

(This article belongs to the Special Issue Autonomous Vehicles Technology)
  • Article
  • Open Access
2 Citations
932 Views
35 Pages

A Theory-Guided Transformer for Interpretable Hyperspectral Unmixing

  • Hongyue Cao,
  • Fanlei Meng,
  • Haixin Sun,
  • Xinyu Cui and
  • Dan Shao

13 March 2026

Hyperspectral unmixing (HU) is fundamental for conducting quantitative analyses in remote sensing, yet existing methods face a persistent tradeoff between model performance and physical interpretability. Although deep learning models achieve superior...

  • Article
  • Open Access
765 Views
24 Pages

4 June 2026

The exponential growth of social media has revolutionized global communication, enabling instant idea exchange and transforming information sharing into a worldwide phenomenon while simultaneously accelerating the spread of abusive and hateful conten...

(This article belongs to the Special Issue The Digital Immune System: AI-Driven Detection and Mitigation of Online Harms)
  • Article
  • Open Access
144 Views
18 Pages

A Finite-Pilot Learned Complementary-Geometry Receiver for Heterogeneous Satellite Jamming

  • Mingming Hui,
  • Shenghua Zhai,
  • Tengfei Hui,
  • Daqing Wang,
  • Xiongfei Li and
  • Wei Wang

8 October 2026

Satellite array receivers must suppress interference whose spatial, spectral, and temporal characteristics vary across operating conditions, often with limited known symbols for adaptation. This paper studies when learned subspace augmentation is use...

(This article belongs to the Special Issue AI-Driven Signal Processing and Resource Allocation in Wireless Networks)
  • Article
  • Open Access
6 Citations
2,494 Views
13 Pages

Implicitly Aligning Joint Distributions for Cross-Corpus Speech Emotion Recognition

  • Cheng Lu,
  • Yuan Zong,
  • Chuangao Tang,
  • Hailun Lian,
  • Hongli Chang,
  • Jie Zhu,
  • Sunan Li and
  • Yan Zhao

31 August 2022

In this paper, we investigate the problem of cross-corpus speech emotion recognition (SER), in which the training (source) and testing (target) speech samples belong to different corpora. This case thus leads to a feature distribution mismatch betwee...

(This article belongs to the Topic Machine and Deep Learning)
  • Article
  • Open Access
1,710 Views
19 Pages

Robust Bi-Orthogonal Projection Learning: An Enhanced Dimensionality Reduction Method and Its Application in Unsupervised Learning

  • Xianhao Qin,
  • Chunsheng Li,
  • Yingyi Liang,
  • Huilin Zheng,
  • Luxi Dong,
  • Yarong Liu and
  • Xiaolan Xie

15 December 2024

This paper introduces a robust bi-orthogonal projection (RBOP) learning method for dimensionality reduction (DR). The proposed RBOP enhances the flexibility, robustness, and sparsity of the embedding framework, extending beyond traditional DR methods...

(This article belongs to the Special Issue AI/Machine Learning in Computer Vision/Image Processing and Natural Language Processing)

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