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1,125 Results Found

  • Article
  • Open Access
13 Citations
4,198 Views
19 Pages

4 March 2023

Pedestrian trajectory prediction is an important task in practical applications such as automatic driving and surveillance systems. It is challenging to effectively model social interactions among pedestrians and capture temporal dependencies. Previo...

(This article belongs to the Special Issue Applications of Deep Learning and Artificial Intelligence Methods)
  • Article
  • Open Access
7 Citations
3,185 Views
14 Pages

Abnormal Traffic Detection System Based on Feature Fusion and Sparse Transformer

  • Xinjian Zhao,
  • Weiwei Miao,
  • Guoquan Yuan,
  • Yu Jiang and ,
  • Song Zhang and
  • Qianmu Li
  • + 1 author+ 0 author

24 May 2024

This paper presents a feature fusion and sparse transformer-based anomalous traffic detection system (FSTDS). FSTDS utilizes a feature fusion network to encode the traffic data sequences and extracting features, fusing them into coding vectors throug...

(This article belongs to the Special Issue Data Mining and Machine Learning in the Era of Big Knowledge and Large Models)
  • Article
  • Open Access
1 Citations
1,067 Views
13 Pages

20 February 2026

In recent years, Transformer architectures have excelled at modeling non-local information. This makes them suitable for image deraining. However, existing methods use dense self-attention. They compute all similarities between query and key tokens....

(This article belongs to the Special Issue Advanced Image Processing and Computer Vision (2nd Edition))
  • Article
  • Open Access
20 Citations
6,439 Views
21 Pages

A 3D Geological Modeling Method Using the Transformer Model: A Solution for Sparse Borehole Data

  • Zhenquan Hang,
  • Tao Xue,
  • Jianping Chen,
  • Yujin Shi and ,
  • Zehang Yin,
  • Zijia Cui and
  • Guanyun Zhou
  • + 2 authors+ 0 author

15 March 2025

Three-dimensional (3D) geological models are essential for geological analysis and mineral resource estimation. Although conventional on-site survey methods, such as boreholes, provide local engineering geological information for 3D geological modeli...

(This article belongs to the Special Issue Application of Big Data Mining, Machine Learning and Artificial Intelligence in Geoscience, 2nd Edition)
  • Article
  • Open Access
2 Citations
918 Views
21 Pages

9 December 2025

Electric vehicle (EV) charging behavior exhibits strong spatio-temporal randomness, often leading to transient peak loads and an elevated risk of distribution network overloads. In addition, existing prediction models still face challenges in achievi...

  • Article
  • Open Access
20 Citations
3,676 Views
16 Pages

16 August 2023

The accurate prediction of PM2.5 concentration, a matter of paramount importance in environmental science and public health, has remained a substantial challenge. Conventional methodologies for predicting PM2.5 concentration often grapple with captur...

(This article belongs to the Special Issue Urban Airflow and Pollutant Dispersion: Monitoring, Modeling, Challenges, and New Perspectives)
  • Article
  • Open Access
1,066 Views
36 Pages

SparseTrack: A Physics-Informed Transformer Framework for Real-Time Human Motion Reconstruction from Sparse IMUs

  • Adithya Balasubramanyam,
  • Suchir Murali Velpanur,
  • Sushma Edhala Jeevarathnam,
  • Tejasree Chekuri Jayachandra and ,
  • Prasad Honnavalli and
  • Gowri Srinivasa
  • + 1 author+ 0 author

21 May 2026

Wearable inertial measurement units are widely used for human motion analysis due to their portability; however, most IMU-based motion capture systems rely on dense sensor configurations that increase cost, complexity, and usability challenges in rea...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
15 Citations
5,302 Views
25 Pages

30 September 2024

Thin clouds in Remote Sensing (RS) imagery can negatively impact subsequent applications. Current Deep Learning (DL) approaches often prioritize information recovery in cloud-covered areas but may not adequately preserve information in cloud-free reg...

  • Article
  • Open Access
560 Views
22 Pages

15 May 2026

Accurate direction-of-arrival (DOA) estimation with high resolution is fundamental to many array sensing applications. In practice, however, sparse arrays with missing sensors and snapshot-limited observations often lead to incomplete and noisy secon...

(This article belongs to the Section Electronic Sensors)
  • Article
  • Open Access
867 Views
16 Pages

4 August 2026

Automatic detection of stress in social media text holds promise for supporting digital mental health, but most existing Transformer-based approaches are opaque and computationally demanding. This work presents DR-Transformer, a Dual-Regularized Tran...

  • Article
  • Open Access
7 Citations
3,467 Views
22 Pages

ADMM-TransNet: ADMM-Based Sparse-View CT Reconstruction Method Combining Convolution and Transformer Network

  • Sukai Wang,
  • Xueqin Sun,
  • Yu Li,
  • Zhiqing Wei and ,
  • Lina Guo,
  • Yihong Li,
  • Ping Chen and
  • Xuan Li
  • + 3 authors+ 0 author

26 February 2025

Background: X-ray computed tomography (CT) imaging technology provides high-precision anatomical visualization of patients and has become a standard modality in clinical diagnostics. A widely adopted strategy to mitigate radiation exposure is sparse-...

  • Article
  • Open Access
2 Citations
908 Views
18 Pages

4 December 2025

Steel surface defect detection is critical for ensuring industrial product quality and safety. Although deep learning-based detectors like the YOLO series have demonstrated considerable promise, they often struggle with three key challenges under com...

(This article belongs to the Section F: Engineering and Materials)
  • Feature Paper
  • Article
  • Open Access
812 Views
21 Pages

14 August 2026

Deep neural networks increasingly convert street-level imagery into quantitative measures of urban perception, but the cost of transformer backbones limits repeated inference over city-scale image collections. This study proposes an optimized Sparse...

(This article belongs to the Special Issue Mathematical Algorithms and Artificial Intelligence Methods in Design: Theory, Computation and Applications)
  • Article
  • Open Access
13 Citations
4,203 Views
20 Pages

Unified Convolutional Sparse Transformer for Disease Diagnosis, Monitoring, Drug Development, and Therapeutic Effect Prediction from EEG Raw Data

  • Zhengda He,
  • Linjie Chen,
  • Jiaying Xu,
  • Hao Lv and ,
  • Rui-ning Zhou,
  • Jianhua Hu,
  • Yadong Chen and
  • Yang Gao
  • + 3 authors+ 0 author

22 March 2024

Electroencephalogram (EEG) analysis plays an indispensable role across contemporary medical applications, which encompasses diagnosis, monitoring, drug discovery, and therapeutic assessment. This work puts forth an end-to-end deep learning framework...

(This article belongs to the Section Bioinformatics)
  • Article
  • Open Access
4 Citations
2,182 Views
18 Pages

25 February 2022

Sparse orthonormal transform is based on orthogonal sparse coding, which is relatively fast and suitable in image compression such as analytic transforms with better performance. However, because of the constraints on its dictionary, it has performan...

  • Article
  • Open Access
15 Citations
3,860 Views
17 Pages

Low-Dose CT Image Post-Processing Based on Learn-Type Sparse Transform

  • Wenfeng Zheng,
  • Bo Yang,
  • Ye Xiao,
  • Jiawei Tian and ,
  • Shan Liu and
  • Lirong Yin
  • + 1 author+ 0 author

9 April 2022

As a detection method, X-ray Computed Tomography (CT) technology has the advantages of clear imaging, short detection time, and low detection cost. This makes it more widely used in clinical disease screening, detection, and disease tracking. This st...

(This article belongs to the Special Issue Recent Advancements in Sensor Technologies for Healthcare and Biomedical Applications)
  • Article
  • Open Access
447 Views
20 Pages

Inverse Weighted Sparse Regularization and Its Application in Radon Transform

  • Wei Shi,
  • Zhiwei Li,
  • Siyuan Chen,
  • Ning Wang and ,
  • Ronghong Cheng and
  • Tonghe Yang
  • + 1 author+ 0 author

3 June 2026

In the reconstruction problem of compressed sensing, to address the challenge of adapting common sparse constraints to diverse data, we propose a data-driven inverse-weighted regularization for adaptive data matching to enhance the ability of sparse...

(This article belongs to the Special Issue Advanced Image Processing Technologies and Applications for Remote Sensing)
  • Article
  • Open Access
197 Citations
12,141 Views
22 Pages

5 November 2021

Deep learning methods have achieved considerable progress in remote sensing image building extraction. Most building extraction methods are based on Convolutional Neural Networks (CNN). Recently, vision transformers have provided a better perspective...

(This article belongs to the Special Issue Advanced Deep Learning Techniques for Earth Observation and Applications)
  • Article
  • Open Access
2 Citations
2,755 Views
19 Pages

Wavelet-Transform-Based Sparse Code Multiple Access for Power Line Communication

  • Muhammad Sajid Sarwar,
  • Sobia Baig,
  • Hafiz M. Asif,
  • Kaamran Raahemifar and
  • Samir Al-Busaidi

20 August 2022

This paper presents Discrete Wavelet Transformed Sparse Code Multiple Access (DWT-SCMA) in Power Line Communication (PLC) systems. In the present internet of things era, PLC provides an established infrastructure for low-cost and reliable indoor conn...

  • Article
  • Open Access
15 Citations
3,524 Views
20 Pages

24 May 2024

Transformers have recently achieved significant breakthroughs in various visual tasks. However, these methods often overlook the optimization of interactions between convolution and transformer blocks. Although the basic attention module strengthens...

  • Article
  • Open Access
4 Citations
3,325 Views
16 Pages

16 February 2023

The existence of multiple reflections brings difficulty to seismic data processing and interpretation in seismic reflection exploration. Parabolic Radon transform is widely used in multiple attenuation because it is easily implemented, highly robust...

(This article belongs to the Special Issue Technological Advances in Seismic Data Processing and Imaging)
  • Article
  • Open Access
10 Citations
4,416 Views
27 Pages

Computing the sparse fast Fourier transform (sFFT) has emerged as a critical topic for a long time because of its high efficiency and wide practicability. More than twenty different sFFT algorithms compute discrete Fourier transform (DFT) by their un...

(This article belongs to the Section Circuit and Signal Processing)
  • Article
  • Open Access
13 Citations
4,660 Views
14 Pages

22 April 2022

The reconstruction of sparsely sampled projection data will generate obvious streaking artifacts, resulting in image quality degradation and affecting medical diagnosis results. Wavelet transform can effectively decompose directional components of im...

(This article belongs to the Section Biomedical Sensors)
  • Article
  • Open Access
4 Citations
2,874 Views
21 Pages

24 September 2021

Distributed radar array brings several new forthcoming advantages in aerospace target detection and imaging. The two-dimensional distributed array avoids the imperfect motion compensation in coherent processing along slow time and can achieve single...

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

20 October 2026

Zero-inflated sparse count data are common in text analytics, where keyword frequencies contain many zeros and highly skewed positive values. This study proposes a systematic model-specific framework that treats predictor transformation and scaling a...

(This article belongs to the Section Information Processes)
  • Article
  • Open Access
6 Citations
3,657 Views
21 Pages

29 December 2023

Multispectral image (MSI) and hyperspectral image (HSI) fusion (MHIF) aims to address the challenge of acquiring high-resolution (HR) HSI images. This field combines a low-resolution (LR) HSI with an HR-MSI to reconstruct HR-HSIs. Existing methods di...

(This article belongs to the Special Issue Remote Sensing Data Fusion and Applications)
  • Article
  • Open Access
5 Citations
3,671 Views
14 Pages

Discrete Shearlets as a Sparsifying Transform in Low-Rank Plus Sparse Decomposition for Undersampled (k, t)-Space MR Data

  • Nicholas E. Protonotarios,
  • Evangelia Tzampazidou,
  • George A. Kastis and
  • Nikolaos Dikaios

29 January 2022

The discrete shearlet transformation accurately represents the discontinuities and edges occurring in magnetic resonance imaging, providing an excellent option of a sparsifying transform. In the present paper, we examine the use of discrete shearlets...

(This article belongs to the Special Issue Intelligent Strategies for Medical Image Analysis)
  • Article
  • Open Access
2 Citations
3,137 Views
10 Pages

6 May 2025

Automatic focusing is a crucial research issue for achieving high-quality reconstructed images in digital holographic microscopy. This paper proposes an automatic focusing method that combines the discrete cosine transform (DCT) sparse dictionary wit...

  • Article
  • Open Access
442 Views
19 Pages

PAST: Prior-Aware Sparse Transformer for Micro-Expression Recognition

  • Jiateng Liu,
  • Tianchen Zhou,
  • Hengcan Shi,
  • Yining Zhao and ,
  • Zedong Liu,
  • Yingtian Yu and
  • Liming Liu
  • + 2 authors+ 0 author

Micro-expression recognition (MER) has a lot of applications in lie detection, education, healthcare, etc., as involuntary micro-expressions (MEs) may provide subtle facial cues associated with affective responses. With the development of deep learni...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
6 Citations
4,262 Views
17 Pages

CST: Complex Sparse Transformer for Low-SNR Speech Enhancement

  • Kaijun Tan,
  • Wenyu Mao,
  • Xiaozhou Guo,
  • Huaxiang Lu and ,
  • Chi Zhang,
  • Zhanzhong Cao and
  • Xingang Wang
  • + 2 authors+ 0 author

21 February 2023

Speech enhancement tasks for audio with a low SNR are challenging. Existing speech enhancement methods are mainly designed for high SNR audio, and they usually use RNNs to model audio sequence features, which causes the model to be unable to learn lo...

(This article belongs to the Special Issue Artificial Intelligence-Based Audio Signal Processing)
  • Article
  • Open Access
1,560 Views
26 Pages

5 January 2026

Few-shot classification aims to generalize from very limited samples, providing an effective solution for data-scarce scenarios. From a symmetry viewpoint, an ideal Few-Shot classifier should be invariant to class permutations and treat support and q...

(This article belongs to the Special Issue Symmetry and Its Applications in Deep Learning and Artificial Intelligence Methods)
  • Article
  • Open Access
495 Views
18 Pages

Trans2-CBCT: A Dual-Transformer Framework for Sparse-View CBCT Reconstruction

  • Minmin Yang,
  • Yunhui Zhu,
  • Huantao Ren and
  • Senem Velipasalar

24 July 2026

Cone-beam computed tomography (CBCT) with sparse projection views offers reduced radiation dose and faster scans but introduces severe streak artifacts and spatial coverage gaps. We address these challenges within a unified framework. First, we repla...

(This article belongs to the Section Sensors Development)
  • Article
  • Open Access
2 Citations
2,113 Views
16 Pages

Medical Image Despeckling Using the Invertible Sparse Fuzzy Wavelet Transform with Nature-Inspired Minibatch Water Wave Swarm Optimization

  • Ahila Amarnath,
  • Poongodi Manoharan,
  • Buvaneswari Natarajan,
  • Roobaea Alroobaea and ,
  • Majed Alsafyani,
  • Abdullah M. Baqasah,
  • Ismail Keshta and
  • Kaamran Raahemifar
  • + 3 authors+ 0 author

12 September 2023

Speckle noise is a pervasive problem in medical imaging, and conventional methods for despeckling often lead to loss of edge information due to smoothing. To address this issue, we propose a novel approach that combines a nature-inspired minibatch wa...

(This article belongs to the Special Issue Medical Data Processing and Analysis—2nd Edition)
  • Article
  • Open Access
11 Citations
4,710 Views
20 Pages

10 April 2018

High-speed remote transmission and large-capacity data storage are difficult issues in signals acquisition of rotating machines condition monitoring. To address these concerns, a novel multichannel signals reconstruction approach based on tunable Q-f...

(This article belongs to the Special Issue Wavelets, Fractals and Information Theory III)
  • Article
  • Open Access
18 Citations
7,851 Views
18 Pages

2 March 2016

To more completely extract useful features from low frequency oscillation (LFO) signals, a time-frequency analysis method using resonance-based sparse signal decomposition (RSSD) and a frequency slice wavelet transform (FSWT) is proposed. FSWT can cu...

(This article belongs to the Special Issue Electric Power Systems Research)
  • Article
  • Open Access
23 Citations
3,716 Views
25 Pages

20 October 2022

Ship detection in synthetic aperture radar (SAR) images has witnessed rapid development in recent years, especially after the adoption of convolutional neural network (CNN)-based methods. Recently, a transformer using self-attention and a feed forwar...

  • Article
  • Open Access
4 Citations
3,559 Views
21 Pages

24 September 2024

Recently, deep unfolding network methods have significantly progressed in hyperspectral snapshot compressive imaging. Many approaches directly employ Transformer models to boost the feature representation capabilities of algorithms. However, they oft...

(This article belongs to the Special Issue Sensors for Hyperspectral Imaging: Technologies, Methods and Data Processing)
  • Article
  • Open Access
18 Citations
3,227 Views
15 Pages

19 August 2022

In the acoustics-based power transformer fault diagnosis, a transformer acoustic signal collected by an acoustic sensor is generally mixed with a large number of interference signals. In order to separate transformer acoustic signals from mixed acous...

(This article belongs to the Special Issue Emerging Modeling and Optimization Techniques for Low-Carbon Integrated Energy Systems)
  • Article
  • Open Access
6 Citations
1,801 Views
24 Pages

11 October 2025

Accurate short-term photovoltaic (PV) power generation forecasting is critical for the stable integration of renewable energy into the grid. This study proposes a Transformer model enhanced with an adaptive sparse self-attention (ASSA) mechanism for...

  • Article
  • Open Access
18 Citations
5,677 Views
16 Pages

Graph Transformer Network Incorporating Sparse Representation for Multivariate Time Series Anomaly Detection

  • Qian Yang,
  • Jiaming Zhang,
  • Junjie Zhang,
  • Cailing Sun and ,
  • Shanyi Xie,
  • Shangdong Liu and
  • Yimu Ji
  • + 2 authors+ 0 author

Cyber–physical systems (CPSs) serve as the pivotal core of Internet of Things (IoT) infrastructures, such as smart grids and intelligent transportation, deploying interconnected sensing devices to monitor operating status. With increasing decen...

(This article belongs to the Special Issue Recent Advances and Applications of Network Security and Cryptography)
  • Article
  • Open Access
6 Citations
3,031 Views
19 Pages

Anomaly Detection of Sensor Arrays of Underwater Methane Remote Sensing by Explainable Sparse Spatio-Temporal Transformer

  • Kai Zhang,
  • Wangze Ni,
  • Yudi Zhu,
  • Tao Wang and ,
  • Wenkai Jiang,
  • Min Zeng and
  • Zhi Yang
  • + 2 authors+ 0 author

1 July 2024

The increasing discovery of underwater methane leakage underscores the importance of monitoring methane emissions for environmental protection. Underwater remote sensing of methane leakage is critical and meaningful to protect the environment. The co...

(This article belongs to the Section Ocean Remote Sensing)
  • Article
  • Open Access
9 Citations
5,608 Views
18 Pages

29 December 2024

Aiming at the problems of serious information redundancy, complex inter-modal information interaction, and difficult multimodal fusion faced by the audio–visual speech recognition system when dealing with complex multimodal information, this pa...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
830 Views
16 Pages

BatteryMoE: An Improved Sparse Mixture-of-Experts Transformer for Battery SOH Estimation and RUL Prediction

  • Peiming Zhang,
  • Jiajia Fu,
  • Jian Zhang,
  • Xuanhao Mai and ,
  • Jie Tang and
  • Cui Yang
  • + 1 author+ 0 author

26 May 2026

Accurate State of Health (SOH) estimation and Remaining Useful Life (RUL) prediction on uninterruptible power supply (UPS) batteries are critical for ensuring system reliability. However, battery degradation processes exhibit significant non-linearit...

(This article belongs to the Section D: Energy Storage and Application)
  • Article
  • Open Access
280 Views
17 Pages

Knowledge-Guided Multimodal Resource Identification in Low-Voltage Transformer Areas with Sparse Measurements

  • Xiaoxing Lu,
  • Xiaolong Xiao,
  • Wenqiang Xie,
  • Shuo Han and ,
  • Jinyu Li,
  • Chengjun Zhang and
  • Wenbin Yu
  • + 2 authors+ 0 author

16 September 2026

Identifying distributed photovoltaic generation, battery energy storage, and load-dominant behaviour remains challenging when transformer-area measurements are sparse, operating patterns overlap, and reference labels are incomplete. We develop a know...

(This article belongs to the Special Issue Data Analytics and Machine Learning in Smart Energy Systems)
  • Article
  • Open Access
373 Views
20 Pages

20 August 2026

Sparse autoencoders (SAEs) decompose transformer activations into sparse feature dictionaries, but one-shot support selection can leave many features unused and become difficult to optimize at very small active budgets. We study an SAE-like dictionar...

(This article belongs to the Section Algorithms for Multidisciplinary Applications)
  • Article
  • Open Access
1 Citations
1,785 Views
22 Pages

HiPro-AD: Sparse Trajectory Transformer for End-to-End Autonomous Driving with Hybrid Spatiotemporal Attention

  • Bing Chen,
  • Gaopeng Wang,
  • Jiandong Yang,
  • Shaoliang Huang and ,
  • Xinhe Qian,
  • Bin Huang and
  • Guanlun Guo
  • + 2 authors+ 0 author

26 December 2025

End-to-end (E2E) autonomous driving offers a promising alternative to traditional modular pipelines by mapping raw sensor data directly to vehicle controls, thereby mitigating error propagation. However, prevalent approaches largely rely on dense Bir...

(This article belongs to the Special Issue AI-Driving for Autonomous Vehicles)
  • Article
  • Open Access
1 Citations
1,377 Views
20 Pages

Deformable Pyramid Sparse Transformer for Semi-Supervised Driver Distraction Detection

  • Qiang Zhao,
  • Zhichao Yu,
  • Jiahui Yu,
  • Simon James Fong and ,
  • Yuchu Lin,
  • Rui Wang and
  • Weiwei Lin
  • + 2 authors+ 0 author

25 January 2026

Ensuring sustained driver attention is critical for intelligent transportation safety systems; however, the performance of data-driven driver distraction detection models is often limited by the high cost of large-scale manual annotation. To address...

(This article belongs to the Section Vehicular Sensing)
  • Article
  • Open Access
516 Views
20 Pages

11 August 2026

With the continuous improvement in intelligent transportation and data perception levels, determining how to achieve high-precision and generalizable traffic flow prediction based on historical traffic data has become an important issue in intelligen...

(This article belongs to the Special Issue Advanced Sensing and Predictive Techniques in Intelligent Transportation Systems)
  • Article
  • Open Access
5 Citations
2,224 Views
23 Pages

ViViT-Prob: A Radar Echo Extrapolation Model Based on Video Vision Transformer and Spatiotemporal Sparse Attention

  • Yunan Qiu,
  • Bingjian Lu,
  • Wenrui Xiong,
  • Zhenyu Lu and ,
  • Le Sun and
  • Yingjie Cui
  • + 1 author+ 0 author

6 June 2025

Weather radar, as a crucial component of remote sensing data, plays a vital role in convective weather forecasting through radar echo extrapolation techniques. To address the limitations of existing deep learning methods in radar echo extrapolation,...

  • Article
  • Open Access
3 Citations
2,965 Views
21 Pages

24 October 2023

Due to high maneuverability as well as hardware limitations of Unmanned Aerial Vehicle (UAV) platforms, tracking targets in UAV views often encounter challenges such as low resolution, fast motion, and background interference, which make it difficult...

(This article belongs to the Special Issue Computer Vision and Machine Learning for Object Tracking and Recognition)

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