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2061
A Study on the Impact of Obstacle Size on Training Models Based on DQN and DDQN
Published 2025-01-01“…While DDQN introduces another network for evaluation, which could better decrease overestimation and explore more possible actions to improve training performance. …”
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2062
Robust Beamforming for Superdirective Antenna Arrays and Experimental Validations
Published 2025-01-01“…Numerical and electromagnetic (EM) simulations verify the effectiveness of the DoS and the OC-QCLS algorithm. The improvement in communication performance achieved by the OC-QCLS algorithm is demonstrated through its superior average spectral efficiency. …”
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2063
New Heuristic Local Search Method for University Course Timetabling
Published 2023-02-01“…While the fitness function of the first phase is based on the violation of hard constraints, the fitness function of the second phase is based on the penalty of the feasible solution.Findings: The numerical results indicate that the required computing time increases with the size of instances, and the algorithm tends to converge towards the optimal solution after a few minutes.Originality/Value: The presented algorithm enables us to deal with extensive university course timetabling problems in practice. …”
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2064
Federated deep reinforcement learning-based edge collaborative caching strategy in space-air-ground integrated network
Published 2025-01-01“…Simulation results show that compared with other algorithm, the proposed algorithm can improve the cache hit rate of user requests by 18% and reduce the access latency of content by 25% while protecting user privacy.…”
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2065
Federated learning for digital twin applications: a privacy-preserving and low-latency approach
Published 2025-08-01“…To evaluate the efficiency of our proposed scheme, we conducted extensive experiments, with results validating that our approach achieves training accuracy and security on par with baseline methods, while substantially reducing FL iteration time. This enhancement contributes to improved DT mapping and service quality for physical entities. …”
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2066
A grid-based sectoring for energy-efficient wireless sensor networks
Published 2025-04-01“…Game theory (GT) and Ad hoc on Demand Vectors (AODV) were used to choose the optimal routing path, while Grey Wolf Optimization (GWO) was used to determine the optimal CHs. …”
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2067
Implementation of VR application in cultural and tourism integration under the background of smart city and IoT
Published 2025-12-01“…Experimental results showed that the improved algorithm achieved an F1 score of 0.891 for positive sentiment classification, significantly enhancing overall accuracy. …”
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2068
Quantitative evaluation and obstacle factor diagnosis of drug regulatory capacity in China.
Published 2025-01-01“…<h4>Methods</h4>Using the methods of literature research, expert interviews, investigation and analysis, the quantitative evaluation indicator system of supervision ability was established in all directions; the indicator data were collected and quantified; the indicator weight setting algorithm of the evaluation system was improved and the indicator weight was set by combining AHP and entropy method; the differences among eastern, central, and western provincial-level regions were analyzed by variance analysis; panel data were constructed for spatio-temporal evolution analysis; obstacle factor diagnosis model was used to analyze the obstacle factors.…”
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2069
Nonlinear Model Predictive Control for Trajectory Tracking of Omnidirectional Robot Using Resilient Propagation
Published 2025-01-01“…This paper proposes an enhanced Nonlinear Model Predictive Control (NMPC) framework that incorporates a robust, convergent variant of the resilient propagation (RPROP) algorithm to efficiently solve the Nonlinear Optimization Problem (NOP) in real time. …”
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2070
PolicySegNet: a policy-based reinforcement learning framework with pretrained embeddings and transformer decoder for joint brain tumors segmentation and classification in MRI
Published 2025-08-01“…PolicySegNet uniquely integrates a policy-based reinforcement learning algorithm—specifically proximal policy optimization (PPO)—to jointly optimize the decoder and classifier based on a reward signal that balances segmentation accuracy with classification performance. …”
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2071
Prediction of river dissolved oxygen (DO) based on multi-source data and various machine learning coupling models.
Published 2025-01-01“…In this study, a hybrid machine learning model for river DO prediction, called DWT-KPCA-GWO-XGBoost, is proposed, which combines the discrete wavelet transform (DWT), kernel principal component analysis (KPCA), gray wolf optimization algorithm (GWO), and extreme gradient boosting (XGBoost). …”
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2072
The balance between traffic control and economic development in tourist cities under the context of COVID-19: A case study of Xi'an, China.
Published 2024-01-01“…After determining the functional relationship between the control intensity and the number of tourists and the cumulative number of confirmed cases, the NSGA-II algorithm is employed to perform multi-objective optimization with consideration of the requirements for epidemic prevention and control and for economic development to get an appropriate traffic control intensity and suggest scientific traffic control measures. …”
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2073
A novel mechanism-guided residual network for accurate modelling of scroll expander under noisy and sparse data conditions
Published 2025-08-01“…This framework is based on the architecture of residual network, where the mechanistic laws are embedded as constraints in the training of the network through an improved loss function. Then, a hybrid optimization algorithm is detailed, which can achieve efficient and accurate updating of the parameters of the network and mechanistic equations. …”
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2074
Hyperspectral Imaging for Non-Destructive Moisture Prediction in Oat Seeds
Published 2025-06-01“…Bayesian optimization was used for global tuning of network structural parameters, while ASFSSA was applied to fine-tune the initial weights and thresholds, improving convergence efficiency and predictive accuracy. …”
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2075
Vehicle Routing Problem for Collaborative Multidepot Petrol Replenishment under Emergency Conditions
Published 2021-01-01“…Meanwhile, usage of distribution trucks is optimized in the distribution network, that is, usage of single- and double-compartment trucks is reduced while that of three-compartment trucks is increased. …”
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2076
GTrXL-SAC-Based Path Planning and Obstacle-Aware Control Decision-Making for UAV Autonomous Control
Published 2025-04-01“…Experimental results in the AirSim drone simulation environment demonstrate that compared to PPO and SAC algorithms, GTrXL-SAC achieves more precise policy exploration and optimization, enabling superior control of drone velocity and attitude for stabilized flight while accelerating convergence speed by nearly 20%.…”
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2077
Energy management in a microgrid equipped with an electric vehicle based on the internet of things considering responsive load
Published 2025-02-01“…A novel Energy-Trading Management Algorithm (ETMA), based on the Meerkat Optimization Algorithm (MOA), is proposed to tackle the complexities of this system. …”
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2078
Policy Efforts to Promote the Adoption of Autonomous Vehicles: Subsidy and AV Lanes
Published 2023-01-01“…The first and second stage models are solved using the simulation-optimization and genetic-algorithm-based approaches, respectively. …”
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2079
FPGA Acceleration With Hessian-Based Comprehensive Intra-Layer Mixed-Precision Quantization for Transformer Models
Published 2025-01-01“…Coupled with the proposed algorithm and dataflow optimization, it enables on-chip storage of all necessary parameters, minimizing off-chip memory access. …”
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2080
Adaptive Multi-Robot Exploration for Unknown Environments Using Edge-Weighted Path Planning
Published 2025-01-01“…Experimental results demonstrate that the algorithm achieves improved exploration efficiency and adaptability compared to a real-time scheduling method while maintaining computational feasibility. …”
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