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2241
Adaptive Security Solutions for NOMA Networks: The Role of DDPG and RIS-Equipped UAVs
Published 2024-11-01“…In this work, we apply the Deep Deterministic Policy Gradient (DDPG) technique to improve the security of a non-orthogonal multiple access (NOMA) downlink network by enabling use of a reconfigurable intelligent surface (RIS) equipped unmanned aerial vehicles (UAV). …”
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2242
Modeling the Dynamic Evolution of the Vehicular Ad Hoc Networks under the City Scenario
Published 2015-08-01“…Nowadays, vehicular ad hoc network (VANET) has attracted more and more attention due to its various applications to improve the road traffic safety and efficiency. So there were plenty of exploration work and merit on the intervehicle communication, routing, and data forwarding, but it is not easy to design the efficient routing and data forwarding algorithm, because it is hard to understand the dynamic evolution of its network topology due to the fast movement of the vehicles in the network. …”
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2243
Efficient Resources Provisioning Based on Load Forecasting in Cloud
Published 2014-01-01“…Cloud providers should ensure QoS while maximizing resources utilization. One optimal strategy is to timely allocate resources in a fine-grained mode according to application’s actual resources demand. …”
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2244
FEXGBIDS: Federated XGBoost-Based Intrusion Detection System for In-Vehicle Network
Published 2025-01-01“…Additionally, we employ BLS aggregate signatures to achieve efficient and verifiable parameter aggregation, and leverage the DDSketch distributed quantile estimation algorithm to optimize the feature bucketing process. …”
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2245
Research on the Stability of Express Delivery Supply Chain Based on Risk Propagation Model ------ Case Studies of SF Express and JD Logistics
Published 2025-01-01“…Based on the research results, optimization strategies such as dynamic path optimization algorithms and blockchain-based information isolation mechanisms are proposed, providing theoretical tools and practical references for risk prevention and control in the express delivery industry.…”
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2246
Advances in Numerical Modeling for Heat Transfer and Thermal Management: A Review of Computational Approaches and Environmental Impacts
Published 2025-03-01“…This review explores key methods like Computational Fluid Dynamics (CFD), the Finite Element Method (FEM), the Finite Volume Method (FVM), and multiphysics modeling, alongside emerging strategies such as Adaptive Mesh Refinement (AMR), machine learning (ML), reduced-order modeling (ROM), and high-performance computing (HPC). While these techniques improve accuracy and efficiency, they also increase computational energy demands, contributing to a growing carbon footprint and sustainability concerns. …”
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2247
Enhancing high pressure pulsation test bench performance: a machine learning approach to failure condition tracking
Published 2025-05-01“…The utilization of FCTT has enabled the prediction of HPPT failures, the optimization of maintenance schedules, the minimization of downtime, and the improvement of maintenance practices. …”
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2248
Deep Reinforcement Learning Assisted UAV Path Planning Relying on Cumulative Reward Mode and Region Segmentation
Published 2024-01-01“…The proposed region segmentation algorithm and cumulative reward model have been tested in different DRL techniques, where we show that the cumulative reward model can improve the training efficiency of deep neural networks by 30.8% and the region segmentation algorithm enables deep Q-network agent to avoid 99% of local optimal traps and assists deep deterministic policy gradient agent to avoid 92% of local optimal traps.…”
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2249
Post-Quantum Cryptographic Frameworks for Internet of Things (IoT) and Internet of Medical Things (IoMT) Authentication Systems
Published 2025-06-01“…The result demonstrates that QAuthIoMT achieves a Quantum Attack Resilience (QAR) score of 0.98, while reducing energy consumption by 37% compared to PQCAIE and improving throughput by 2.1× over K3S-PQC. …”
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2250
Stability of optical knots in atmospheric turbulence
Published 2025-03-01“…Additionally, we propose an optimization algorithm to maximize the distance between the phase singularities at each longitudinal plane, facilitating measurements of optical knots and improving their performance in the presence of turbulence.…”
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2251
Predicting Trip Duration and Distance in Bike-Sharing Systems Using Dynamic Time Warping
Published 2025-12-01“…For the two datasets, the obtained results show that the best improvements of the predictive model’s accuracy are 30% and 42% on average for predicting trip duration and distance of the trip, respectively.…”
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2252
Intelligent resource scheduling scheme for UAV swarm collaborative sensing
Published 2025-03-01“…Simulation results demonstrate that, compared with benchmark schemes, the proposed scheme significantly reduces the execution time of sensing tasks while improving computational resource utilization.…”
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2253
Implementing Remote Radiotherapy Planning to Increase Patient Flow at a Johannesburg Academic Hospital, South Africa: Protocol for a Prospective Feasibility Study
Published 2025-07-01“…Phase 1 (feasibility) encompasses system commissioning, including beam modeling, computed tomography (CT)-to-electron density calibration, multileaf collimator (MLC) optimization, and dose calculations using the anisotropic analytical algorithm. …”
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2254
Hierarchical energy management of distribution network with multi-microgrids based on double Stackelberg game
Published 2025-06-01“…Results of case analysis verify that the proposed method can not only increase the economic benefits and realize the coordinated optimal operation of each stakeholder, but also has positive significance in improving the voltage quality of the distribution network and renewable energy consumption.…”
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2255
Research on the Application of Artificial Intelligence in Quantitative Investment: Implementation Scenarios, Practical Challenges, and Future Trends
Published 2025-01-01“…Second, the research focuses on key AI applications in quantitative investment, including multi-factor model optimization, high-frequency market risk management, multimodal data integration, and algorithmic trading enhancement. …”
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2256
Minimum Error Integration Method for Quadrilateral Flat Plate Fitting in Steel Construction
Published 2025-04-01“…Current industry practices often approximate mildly curved surfaces with flat plates within tolerances, but optimizing this substitution to minimize fitting errors while reducing the quantity of curved plates remains a critical engineering challenge. …”
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2257
Fibre-orientation-driven defect probability mapping for machining-induced delamination and burr minimisation in carbon fibre-reinforced polymer (CFRP) composites
Published 2025-10-01“…Then, recursive convolution yielded a matrix whose minima identified the optimal hole position. First, edge trimming experiments were conducted to determine the arguments (critical fibre cutting angle and its range) of the developed algorithm. …”
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2258
GNSS Precipitable Water Vapor Prediction for Hong Kong Based on ICEEMDAN-SE-LSTM-ARIMA Hybrid Model
Published 2025-05-01“…Enhanced by local mean optimization and adaptive noise regulation, the ICEEMDAN algorithm effectively suppresses pseudo-modes and minimizes residual noise, enabling its decomposed intrinsic mode functions (IMFs) to more accurately capture the multi-scale features of GNSS-PWV. …”
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2259
Physical Information Neural Network-Based Seepage Behavior Analysis of Earth and Rock Dams
Published 2025-01-01“…Impermeable boundary conditions are imposed on these initial free-surface nodes, while other boundaries are assigned conditions according to the physical model. …”
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2260
Modernizing the Design Process for US Organ Allocation Policy: Toward a Continuous Distribution Policy for Kidneys
Published 2025-09-01“…This improvement enabled the simulation of thousands of allocation policies, allowing the introduction of multiobjective optimization as a primary method for policy design. …”
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