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3841
A Novel Crowdsourcing-Assisted 5G Wireless Signal Ranging Technique in MEC Architecture
Published 2025-05-01“…This study designs a progressive solution by (1) building a crowdsourced data collection network, using mobile terminals equipped with GPS technology to automatically collect device signal features, replacing inefficient manual drive tests; (2) developing a progressive signal update algorithm that integrates real-time crowdsourced data and historical signals to optimize the signal fingerprint database in dynamic environments; (3) establishing an edge service architecture to offload signal matching and trajectory estimation tasks to MEC nodes, using lightweight computing engines to reduce the load on the core network. …”
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3842
Prediction of Power System Ramping Demand Using Meteorological Features
Published 2025-01-01“…First, an adaptive trend identification algorithm is proposed to extract key features of upward and downward ramps, including magnitude and duration. …”
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3843
QFCOI-Enhancing Objective Quality Assessment for Compressed Omnidirectional Images With Fusion of Measures
Published 2025-01-01“…The feature metrics selection was based on statistical performance and ability to capture key aspects of image quality, including structural preservation, visual information fidelity, and artifact sensitivity. To optimize predictive performance of QFCOI, a genetic algorithm was utilized to determine optimal weight coefficients, maximizing the monotonic correlation with subjective quality scores. …”
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3844
Toward a conceptual model to improve the user experience of a sustainable and secure intelligent transport system
Published 2025-05-01“…These findings highlight the potential of the VCITS model to advance smart traffic management while addressing computational efficiency and security challenges. …”
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3845
Flood resilience assessment of region based on TOPSIS-BOA-RF integrated model
Published 2024-12-01“…Training samples are then input into the Butterfly Optimization Algorithm(BOA) to optimize the key parameters in the Random Forest(RF). …”
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3846
User Handover Aware Hierarchical Federated Learning for Open RAN-Based Next-Generation Mobile Networks
Published 2025-01-01“…To address these challenges, we propose MHORANFed, a novel optimization algorithm tailored to minimize learning time and resource usage costs while preserving model performance within a mobility-aware hierarchical FL framework for O-RAN. …”
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3847
Bilevel Programming Model of Urban Public Transport Network under Fairness Constraints
Published 2019-01-01“…The model in addition utilised the noninferior sorting genetic algorithm II to validate the model via a simple network. …”
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3848
Nonlinear Stability Analysis of Shallow-Buried Bias Tunnel Based on Failure Mode Improvement
Published 2025-03-01“…Based on the improvement of the Karl Terzaghi failure mode for calculating the surrounding rock pressure of loose rock mass, combined with the upper bound theorem of limit analysis, the formula for calculating the surrounding rock pressure of shallow-buried tunnel in a slope area under a nonlinear failure criterion is derived. The SQP algorithm in MATLAB (R2022a) software was used to optimize the solution, and the influence of slope top load, buried depth ratio, cohesion, and axial tensile stress on the surrounding rock pressure and the failure mode of shallow-buried tunnel was analyzed through examples. …”
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3849
Occlusion mapping reveals the impact of flight and sensing parameters on vertical forest structure exploration with cost-effective UAV based laser scanning
Published 2025-05-01“…Using sensor position reconstruction and a ray tracing algorithm to quantify occlusion, we found that: (1) A larger sensor tilt angle up to 15° increased total occlusion, enhancing exploration in the upper canopy, while decreasing it below due to reduced canopy penetration. (2) Flying multiple azimuthal directions with a linear scanning mode reduced vertical occlusion by up to 15.0% due to improved coverage from diverse perspectives. (3) Lissajous scanning patterns resulted in 10.1% less vertical occlusion compared to linear patterns, underscoring the importance of additional viewing angles. …”
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3850
Enhancing Physical Layer Security in WPCNs With IRS and Controlled Jamming for 6G IoT Applications
Published 2025-01-01“…To address the non-convex nature of the problem, we develop an alternating optimization algorithm that decouples the problem into subproblems, ensuring efficient convergence to a locally optimal solution. …”
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3851
Prediction for Coastal Wind Speed Based on Improved Variational Mode Decomposition and Recurrent Neural Network
Published 2025-01-01“…This study proposes a systematic framework, termed VMD-RUN-Seq2Seq-Attention, for noise reduction, outlier detection, and wind speed prediction by integrating Variational Mode Decomposition (VMD), the Runge–Kutta optimization algorithm (RUN), and a Sequence-to-Sequence model with an Attention mechanism (Seq2Seq-Attention). …”
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3852
Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control
Published 2025-07-01“…Meanwhile, the outer loop employs a hybrid MFAC-based improved PID algorithm to optimize the temperature tracking performance, achieving precise temperature control even in the presence of system uncertainties. …”
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3853
ASHM-YOLOv9: A Detection Model for Strawberry in Greenhouses at Multiple Stages
Published 2025-07-01“…Haar wavelet downsampling (HWD) was applied to optimize the Adaptive Downsampling module (Adown) of the initial model, thereby increasing the precision of object detection. …”
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3854
Development and validation of machine learning models to predict unplanned hospitalizations of patients with diabetes within the next 12 months
Published 2024-05-01“…The creation and inference of a machine learning model for predicting hospitalizations of patients with DM to an inpatient medical facility will make it possible to personalize the provision of medical care and optimize the load on the entire healthcare system.AIM: Development and validation of models for predicting unplanned hospitalizations of patients with diabetes due to the disease itself and its complications using machine learning algorithms and data from real clinical practice.MATERIALS AND METHODS: 170,141 depersonalized electronic health records of 23,742 diabetic patients were included in the study. …”
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3855
A UAV Image Stitching Method for Complex Urban Environments
Published 2025-07-01“…To address the issues of uneven feature point distribution, environmental interference, and insufficient real-time performance in UAV image stitching in complex urban environments, this paper proposes an improved ORB algorithm based on Gaussian scale-space optimization and dynamic grid division, combined with a global geometric consistency optimization strategy. …”
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3856
Efficient automated detection of power quality disturbances using nonsubsampled contourlet transform & PCA-SVM
Published 2025-05-01“…Morphological component analysis (MCA) and the split-augmented Lagrangian shrinkage algorithm (SALSA) optimize this process. Principal component analysis (PCA) is applied to the extracted features to reduce dimensionality and improve feature separability. …”
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3857
Dynamic UAV Inspection Boosted by Vehicle Collaboration Under Harsh Conditions in the IoT Realm
Published 2025-04-01“…The simulation results show that KGTSA significantly cuts data collection time while maintaining flexibility. It efficiently manages speed and path uncertainties in complex weather, optimizing task efficiency without weather forecasts. …”
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3858
Demonstration of an Advanced Rectification Strategy on a Linear Generator for Better Electricity Quality
Published 2025-05-01“…In terms of control strategy, a model predictive sliding mode compound control algorithm is introduced to optimize traditional PWM rectification. …”
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3859
SCL-YOLOv11: A Lightweight Object Detection Network for Low-Illumination Environments
Published 2025-01-01“…Experimental results on the ExDark dataset demonstrate that the proposed algorithm achieves 67.6% mAP@0.5 and 42.4% mAP@0.5:0.95, while reducing parameter count by 38.5% and computational cost by 25.4%. …”
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3860
SpecPCM: A Low-Power PCM-Based In-Memory Computing Accelerator for Full-Stack Mass Spectrometry Analysis
Published 2024-01-01“…We further optimize multilevel PCM devices for different tasks by using different materials. …”
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