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79 Results Found

  • Article
  • Open Access
2,063 Views
22 Pages

Edge-Centric Embeddings of Digraphs: Properties and Stability Under Sparsification

  • Ahmed Begga,
  • Francisco Escolano Ruiz and
  • Miguel Ángel Lozano

14 March 2025

In this paper, we define and characterize the embedding of edges and higher-order entities in directed graphs (digraphs) and relate these embeddings to those of nodes. Our edge-centric approach consists of the following: (a) Embedding line digraphs (...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
3 Citations
3,748 Views
12 Pages

24 September 2023

In the domain of video recognition, video transformers have demonstrated remarkable performance, albeit at significant computational cost. This paper introduces TSNet, an innovative approach for dynamically selecting informative tokens from given vid...

  • Review
  • Open Access
2,133 Views
21 Pages

18 October 2023

A novel non-centralised dispatch strategy is presented for wake redirection to optimise large-scale offshore wind farms operation, creating a balanced control between power production and fatigue thrust loads evenly among the wind turbines. This appr...

(This article belongs to the Section A3: Wind, Wave and Tidal Energy)
  • Article
  • Open Access
1,038 Views
14 Pages

Exploring Runtime Sparsification of YOLO Model Weights During Inference

  • Tanzeel-ur-Rehman Khan,
  • Sanghamitra Roy and
  • Koushik Chakraborty

In the pursuit of real-time object detection with constrained computational resources, the optimization of neural network architectures is paramount. We introduce novel sparsity induction methods within the YOLOv4-Tiny framework to significantly impr...

  • Article
  • Open Access
1 Citations
2,252 Views
20 Pages

10 August 2024

Federated learning (FL) demonstrates significant potential in Industrial Internet of Things (IIoT) settings, as it allows multiple institutions to jointly construct a shared learning model by exchanging model parameters or gradient updates without th...

(This article belongs to the Special Issue Privacy-Preserving Techniques in AI, Blockchain and Cloud Systems with Formal Mathematical Analysis)
  • Article
  • Open Access
1 Citations
755 Views
27 Pages

Topological Study of β-Sparsified d-Uniform Hypergraph-Based Simplicial Complexes

  • Rohit P. Singh,
  • Nicholas O. Malott,
  • Raihan Rafeek and
  • Philip A. Wilsey

16 April 2026

Persistent Homology (PH) is a method of Topological Data Analysis that characterizes the topological structure of a space. Unfortunately, the computation of PH for high-dimensional and big data is not possible due to the exponential growth of the con...

  • Article
  • Open Access
44 Citations
5,123 Views
17 Pages

Efficient and Secure Federated Learning for Financial Applications

  • Tao Liu,
  • Zhi Wang,
  • Hui He,
  • Wei Shi and ,
  • Liangliang Lin,
  • Ran An and
  • Chenhao Li
  • + 2 authors+ 0 author

10 May 2023

Conventional machine learning (ML) and deep learning approaches require sharing customers’ sensitive information with an external credit bureau to generate a prediction model, thereby increasing the risk of privacy leakage. This poses a signifi...

(This article belongs to the Special Issue Mobile Computing and Intelligent Sensing)
  • Article
  • Open Access
2,353 Views
13 Pages

The performance of multiagent systems depends heavily on information flow. As agents are populated more densely, some information flow can be redundant. Thus, there can be a tradeoff between communication overhead and control performance. To address...

(This article belongs to the Section Networks)
  • Article
  • Open Access
6 Citations
3,565 Views
16 Pages

A digital image compression framework based on nonlinear partial differential equations (PDEs) is proposed in this research article. First, a feature keypoint-based sparsification algorithm is proposed for the image coding stage. The interest keypoin...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
10 Citations
3,284 Views
19 Pages

Equivalent MIMO Channel Matrix Sparsification for Enhancement of Sensor Capabilities

  • Mikhail Bakulin,
  • Vitaly Kreyndelin,
  • Sergei Melnik,
  • Vladimir Sudovtsev and
  • Dmitry Petrov

5 March 2022

One of the development directions of new-generation mobile communications is using multiple-input multiple-output (MIMO) channels with a large number of antennas. This requires the development and utilization of new approaches to signal detection in...

(This article belongs to the Special Issue Technologies of Highly Efficient Telecommunication Systems and Devices)
  • Article
  • Open Access
5 Citations
1,884 Views
18 Pages

Underdetermined Blind Source Separation of Audio Signals for Group Reared Pigs Based on Sparse Component Analysis

  • Weihao Pan,
  • Jun Jiao,
  • Xiaobo Zhou,
  • Zhengrong Xu and ,
  • Lichuan Gu and
  • Cheng Zhu
  • + 1 author+ 0 author

10 August 2024

In order to solve the problem of difficult separation of audio signals collected in pig environments, this study proposes an underdetermined blind source separation (UBSS) method based on sparsification theory. The audio signals obtained by mixing th...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
8 Citations
4,101 Views
19 Pages

Kernel Mixture Correntropy Conjugate Gradient Algorithm for Time Series Prediction

  • Nan Xue,
  • Xiong Luo,
  • Yang Gao,
  • Weiping Wang and ,
  • Long Wang,
  • Chao Huang and
  • Wenbing Zhao
  • + 2 authors+ 0 author

11 August 2019

Kernel adaptive filtering (KAF) is an effective nonlinear learning algorithm, which has been widely used in time series prediction. The traditional KAF is based on the stochastic gradient descent (SGD) method, which has slow convergence speed and low...

(This article belongs to the Special Issue Information Theoretic Learning and Kernel Methods)
  • Article
  • Open Access
399 Views
24 Pages

30 July 2026

Homomorphic encryption (HE) secure aggregation requires coordinate-aligned updates, whereas personalized federated learning (PFL) lets each client share a different parameter subset. Top-k sparsification widens this gap: per-client supports must be u...

(This article belongs to the Special Issue Privacy-Preserving Data Analytics and Secure Computation)
  • Article
  • Open Access
5 Citations
3,908 Views
31 Pages

Coresets for the Average Case Error for Finite Query Sets

  • Alaa Maalouf,
  • Ibrahim Jubran,
  • Murad Tukan and
  • Dan Feldman

8 October 2021

Coreset is usually a small weighted subset of an input set of items, that provably approximates their loss function for a given set of queries (models, classifiers, hypothesis). That is, the maximum (worst-case) error over all queries is bounded. To...

(This article belongs to the Special Issue Sensor Data Summarization: Theory, Applications, and Systems)
  • Article
  • Open Access
6 Citations
2,960 Views
31 Pages

A Fast Matrix Compression Method for Large Scale Numerical Modelling of Rotationally Symmetric 3D Passive Structures in Fusion Devices

  • Francesca Cau,
  • Andrea Gaetano Chiariello,
  • Guglielmo Rubinacci,
  • Valentino Scalera and ,
  • Antonello Tamburrino,
  • Salvatore Ventre and
  • Fabio Villone
  • + 2 authors+ 0 author

27 April 2022

This paper illustrates the development of a recursive QR technique for the analysis of transient events, such as disruptions or scenario evolution, in fusion devices with three-dimensional conducting structures using an integral eddy current formulat...

(This article belongs to the Special Issue Latest Theoretical, Technological, and Experimental Advances in Fusion Devices)
  • Article
  • Open Access
6 Citations
3,706 Views
13 Pages

Link Pruning for Community Detection in Social Networks

  • Jeongseon Kim,
  • Soohwan Jeong and
  • Sungsu Lim

5 July 2022

Attempts to discover knowledge through data are gradually becoming diversified to understand complex aspects of social phenomena. Graph data analysis, which models and analyzes complex data as graphs, draws much attention as it combines the latest ma...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
11 Citations
7,027 Views
13 Pages

12 September 2012

To overcome the performance degradation in the presence of steering vector mismatches, strict restrictions on the number of available snapshots, and numerous interferences, a novel beamforming approach based on nonlinear least-square support vector r...

(This article belongs to the Section Physical Sensors)
  • Proceeding Paper
  • Open Access
14 Citations
3,779 Views
7 Pages

Bayesian Identification of Dynamical Systems

  • Robert K. Niven,
  • Ali Mohammad-Djafari,
  • Laurent Cordier,
  • Markus Abel and
  • Markus Quade

Many inference problems relate to a dynamical system, as represented by dx/dt = f (x), where x ∈ ℝn is the state vector and f is the (in general nonlinear) system function or model. Since the time of Newton, researchers have pondered the problem of s...

(This article belongs to the Proceedings of The 39th International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering)
  • Article
  • Open Access
2 Citations
2,307 Views
30 Pages

27 November 2024

With the development of mobile communication technology and the proliferation of the number of Internet of Things (IoT) terminal devices, a large amount of data and intelligent applications are emerging at the edge of the Internet, giving rise to the...

  • Article
  • Open Access
3 Citations
4,965 Views
21 Pages

11 April 2018

Unmixing based fusion aims at generating a high spectral-spatial resolution image (HSS) with the same surface features of the high spatial resolution multispectral image (MS) and low spatial resolution hyperspectral image (HS). In this paper, a new f...

(This article belongs to the Section Remote Sensing Image Processing)
  • Proceeding Paper
  • Open Access
1,129 Views
10 Pages

Bayesian Regularization for Dynamical System Identification: Additive Noise Models

  • Robert K. Niven,
  • Laurent Cordier,
  • Ali Mohammad-Djafari,
  • Markus Abel and
  • Markus Quade

Consider the dynamical system x ˙ = f ( x ...

(This article belongs to the Proceedings of The 43rd International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering)
  • Article
  • Open Access
1 Citations
501 Views
24 Pages

Spatiotemporal Sparsified Dynamic Reconfiguration Scheduling Method for High-Photovoltaic-Penetration Distribution Systems

  • Shanghong Xie,
  • Akihisa Kaneko,
  • Yutaka Iino,
  • Yasuhiro Hayashi and ,
  • Ryohei Momokawa,
  • Takahiro Shimoo,
  • Shinya Naoi and
  • Yoshihiro Ogita
  • + 3 authors+ 0 author

14 June 2026

To address the operational challenges posed by the high penetration of photovoltaic systems in distribution networks—such as system congestion, voltage violations, and increased distribution losses—this study proposes a spatiotemporal spa...

(This article belongs to the Section F1: Electrical Power System)
  • Article
  • Open Access
3 Citations
7,300 Views
22 Pages

28 February 2012

In this paper a new framework, called Compressive Kernelized Reinforcement Learning (CKRL), for computing near-optimal policies in sequential decision making with uncertainty is proposed via incorporating the non-adaptive data-independent Random Proj...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
4 Citations
5,172 Views
29 Pages

Efficient Time-Series Clustering through Sparse Gaussian Modeling

  • Dimitris Fotakis,
  • Panagiotis Patsilinakos,
  • Eleni Psaroudaki and
  • Michalis Xefteris

30 January 2024

In this work, we consider the problem of shape-based time-series clustering with the widely used Dynamic Time Warping (DTW) distance. We present a novel two-stage framework based on Sparse Gaussian Modeling. In the first stage, we apply Sparse Gaussi...

(This article belongs to the Special Issue 2022 and 2023 Selected Papers from Algorithms Editorial Board Members)
  • Article
  • Open Access
2 Citations
966 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
530 Views
25 Pages

Knowledge Graph-Driven Graph Neural Networks for Equipment Fault Prediction in Maglev Train Systems

  • Chunlong Yu,
  • Yi Peng,
  • Kunyan Li,
  • Jianyu Guo and ,
  • Yi Wang and
  • JingJing Chen
  • + 1 author+ 0 author

19 June 2026

Equipment fault prediction in maglev train systems poses substantial challenges: fault events are inherently rare, class distributions are severely imbalanced, and individual equipment units are subject to complex spatial and functional couplings tha...

(This article belongs to the Special Issue Application of Artificial Intelligence in Fault Detection, Diagnosis, and Prediction)
  • Article
  • Open Access
5 Citations
2,857 Views
13 Pages

Learned optimization algorithms are promising approaches to inverse problems by leveraging advanced numerical optimization schemes and deep neural network techniques in machine learning. In this paper, we propose a novel deep neural network architect...

  • Article
  • Open Access
338 Views
42 Pages

Adaptation-Preserving Structured Pruning for Efficient Transfer Learning in Deep Neural Networks

  • Anouar Chahbouni,
  • Khaoula El Manaa,
  • Imane El Manaa,
  • Mouhssine Chahbouni and ,
  • Yassine Abouch,
  • Badre Bossoufi,
  • Mohammed El Ghzaoui and
  • Rachid El Alami
  • + 3 authors+ 0 author

4 October 2026

Transfer learning enables pretrained deep networks to adapt to new tasks but typically preserves their original computational structure, leaving much of the inference cost unchanged. Structured pruning can reduce this complexity; however, introducing...

  • Article
  • Open Access
4 Citations
2,892 Views
12 Pages

Effect of Weight Thresholding on the Robustness of Real-World Complex Networks to Central Node Attacks

  • Jisha Mariyam John,
  • Michele Bellingeri,
  • Divya Sindhu Lekha,
  • Davide Cassi and
  • Roberto Alfieri

11 August 2023

In this study, we investigate the effect of weight thresholding (WT) on the robustness of real-world complex networks. Here, we assess the robustness of networks after WT against various node attack strategies. We perform WT by removing a fixed fract...

(This article belongs to the Special Issue Complex Networks with Their Applications)
  • Article
  • Open Access
1 Citations
762 Views
16 Pages

Synolitic Graph Neural Networks for MRI-Derived Radiomic-Based Prediction of Prostate Cancer Progression on Active Surveillance

  • Mikhail I. Krivonosov,
  • Arseniy Trukhanov,
  • Nikita Sushentsev,
  • Tristan Barrett and
  • Alexey Zaikin

28 April 2026

Background: Prostate cancer (PCa) is one of the most prevalent malignancies in men, and active surveillance (AS) is the recommended management strategy for low- and favourable intermediate-risk disease. Predicting which patients will progress during...

(This article belongs to the Special Issue Artificial Intelligence for Network-Based Oncomarker Discovery and Cancer Prediction)
  • Article
  • Open Access
997 Views
25 Pages

24 November 2025

Graph-based multi-view clustering has gained significant attention in recent years due to its superior ability to reveal clustering structures. However, existing methods often incur high computational costs when capturing local information and overlo...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
1 Citations
2,241 Views
19 Pages

FasterAI: A Lightweight Library for Neural Networks Compression

  • Nathan Hubens,
  • Matei Mancas,
  • Bernard Gosselin,
  • Marius Preda and
  • Titus Zaharia

18 November 2022

FasterAI is a PyTorch-based library, aiming to facilitate the use of deep neural network compression techniques, such as sparsification, pruning, knowledge distillation, or regularization. The library is built with the purpose of enabling quick imple...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
6 Citations
3,898 Views
18 Pages

22 October 2019

Random Fourier mapping (RFM) in kernel adaptive filters (KAFs) provides an efficient method to curb the linear growth of the dictionary by projecting the original input data into a finite-dimensional space. The commonly used measure in RFM-based KAFs...

  • Article
  • Open Access
7 Citations
2,702 Views
14 Pages

Communication-Efficient Wireless Traffic Prediction with Federated Learning

  • Fuwei Gao,
  • Chuanting Zhang,
  • Jingping Qiao,
  • Kaiqiang Li and
  • Yi Cao

17 August 2024

Wireless traffic prediction is essential to developing intelligent communication networks that facilitate efficient resource allocation. Along this line, decentralized wireless traffic prediction under the paradigm of federated learning is becoming i...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
1 Citations
1,667 Views
22 Pages

Beam Orbital Parameter Prediction Based on the Deployment of Cascaded Neural Networks at Edge Intelligence Acceleration Nodes

  • Mingyang Hou,
  • Yuhui Guo,
  • Guijin Yang,
  • Xuhui Yang and ,
  • Zigeng Cao,
  • Youxin Chen and
  • Yuan He
  • + 2 authors+ 0 author

25 October 2024

During the beam current calibration process, accurate guidance of the beam current to the metal target is a challenging issue for proton accelerators. To address this challenge, we propose the use of beam orbital parameters combined with reinforcemen...

(This article belongs to the Section Systems & Control Engineering)
  • Article
  • Open Access
2 Citations
1,121 Views
19 Pages

9 March 2026

Motor imagery EEG decoding often relies on static functional connectivity graphs that cannot capture the dynamic, stage-wise reorganization of brain networks during tasks. This paper aims to develop a graph neural network that explicitly simulates th...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
711 Views
35 Pages

3 May 2026

Stock prediction requires the joint modeling of temporal dynamics and cross-stock dependence. Existing graph-based and hypergraph-based forecasting methods often process spatial relation modeling and temporal evolution in separate stages, which may w...

  • Article
  • Open Access
764 Views
20 Pages

3 May 2026

To address the limitations of conventional mobile robot path planning results in terms of geometric continuity, kinematic executability, and adaptability to dynamic environments, this study proposes a reference trajectory generation method oriented t...

(This article belongs to the Section Robotics and Automation)
  • Article
  • Open Access
7 Citations
3,539 Views
20 Pages

27 February 2025

Federated learning (FL) enables privacy-preserving collaborative model training across edge devices without exposing raw user data, but it is vulnerable to privacy leakage through shared model updates, making differential privacy (DP) essential. Exis...

(This article belongs to the Special Issue Advancements in Distributed Intelligent Security Through AI-Driven Solutions)
  • Article
  • Open Access
1,455 Views
24 Pages

28 January 2026

This paper presents a unified framework for high-precision dynamic target tracking that combines phase-map-based visual servoing with Model Predictive Control (MPC). Phase maps obtained from fringe projection provide dense, subpixel geometric feedbac...

(This article belongs to the Section Actuators for Robotics)
  • Article
  • Open Access
631 Views
27 Pages

20 May 2026

Active voltage control (AVC) in active distribution networks coordinates the reactive power outputs of distributed inverters to maintain bus voltages within secure limits. Although multi-agent reinforcement learning (MARL) shows promise for AVC, curr...

(This article belongs to the Special Issue Advances in Intelligent Decision-Making Systems)
  • Article
  • Open Access
2 Citations
1,406 Views
22 Pages

RTS-SLAM: A Trajectory Consistency-Driven Multi-Constraint Dynamic Feature-Rejection Method for Visual SLAM in Dynamic Environments

  • Huailiang Wang,
  • Qiming Hu,
  • Beicheng Li,
  • Yuhao Geng and ,
  • Chao Su,
  • Shibo Zhu,
  • Enhui Zheng and
  • Weimin Chen
  • + 3 authors+ 0 author

2 May 2026

Simultaneous Localization and Mapping (SLAM) is a fundamental methodology that underpins autonomous navigation in robotic systems. Conventional approaches perform well in static environments but rely on the assumption of environmental rigidity, which...

(This article belongs to the Section Navigation and Positioning)
  • Article
  • Open Access
443 Views
31 Pages

5 September 2026

Visual Internet-of-Things (IoT) cameras and institution-controlled edge gateways increasingly collect artwork images in museums, galleries, and heritage sites. Centralizing these images can expose collection contents, exhibition layouts, and contextu...

(This article belongs to the Special Issue Data Engineering in the Internet of Things: 3rd Edition)
  • Article
  • Open Access
304 Views
24 Pages

Short-Term Solar Power Forecasting Based on Pruning-Optimized Temporal Convolutional Networks for Edge Deployment

  • Ziran Guo,
  • Wenqiang Xie,
  • Jian Liu,
  • Xiaolong Xiao and ,
  • Xiaoxing Lu and
  • Fangfang Zhu
  • + 1 author+ 0 author

16 October 2026

Accurate multi-horizon solar power forecasting is vital for modern power distribution networks, yet standard deep learning models face limitations due to weather stochasticity and prohibitive computational requirements on resource-constrained edge de...

(This article belongs to the Topic Advanced Forecasting Methods for Sustainable Power Systems)
  • Article
  • Open Access
4 Citations
2,622 Views
17 Pages

Data-Driven Redundant Transform Based on Parseval Frames

  • Min Zhang,
  • Yunhui Shi,
  • Na Qi and
  • Baocai Yin

22 April 2020

The sparsity of images in a certain transform domain or dictionary has been exploited in many image processing applications. Both classic transforms and sparsifying transforms reconstruct images by a linear combination of a small basis of the transfo...

(This article belongs to the Special Issue Advances in Image Processing, Analysis and Recognition Technology)
  • Article
  • Open Access
3 Citations
5,645 Views
11 Pages

14 March 2025

Prompt tuning visual-language models (VLMs) for specialized tasks often involves leveraging task-specific textual tokens, which can tailor the pre-existing, broad capabilities of a VLM to more narrowly focused applications. This approach, exemplified...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
2 Citations
1,635 Views
21 Pages

SC-NBTI: A Smart Contract-Based Incentive Mechanism for Federated Knowledge Sharing

  • Yuanyuan Zhang,
  • Jingwen Liu,
  • Jingpeng Li,
  • Yuchen Huang and ,
  • Wang Zhong,
  • Yanru Chen and
  • Liangyin Chen
  • + 2 authors+ 0 author

17 September 2025

With the rapid expansion of digital knowledge platforms and intelligent information systems, organizations and communities are producing a vast number of unstructured knowledge data, including annotated corpora, technical diagrams, collaborative whit...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
1 Citations
894 Views
19 Pages

6 March 2026

Infrared small target detection (IRSTD) is a fundamental task in remote sensing-based surveillance and early warning systems. However, extremely small target size, low signal-to-noise ratio, and complex background clutter make reliable detection high...

  • Article
  • Open Access
1 Citations
1,446 Views
26 Pages

Communication-Efficient Federated Optimization with Gradient Clipping and Attention Aggregation for Data Analytics and Prediction

  • Shengyuan Tang,
  • Linwan Zhang,
  • Shengzhe Xu,
  • Xinyue Zeng and ,
  • Peng Hu,
  • Xinyi Gong and
  • Manzhou Li
  • + 2 authors+ 0 author

4 December 2025

To address the challenge of collaborative strategy optimization caused by non-independent and identically distributed data in cross-institutional scenarios, a federated quantitative learning framework integrating Path Attention Aggregation Module (PA...

(This article belongs to the Special Issue Machine Learning in Data Analytics and Prediction)
  • Article
  • Open Access
848 Views
25 Pages

19 December 2025

With the in-depth development of digital twin technology in modern agriculture, smart pig farm construction is evolving from basic environmental modeling toward refined, bio-behavior-driven approaches. This study addresses the non-standard body confi...

(This article belongs to the Special Issue Digital Technologies in Smart Agriculture)

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