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4501
A Capacitated Vehicle Routing Model for Distribution and Repair with a Service Center
Published 2025-02-01“…<i>Background:</i> Distribution systems often face the dual challenge of delivering products to customers and retrieving damaged items for repair, especially when the service center is separate from the depot. An optimized solution to this logistics problem produces benefits in terms of costs, greenhouse gas emissions, and disposal reduction. …”
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4502
Charging Station Management Strategy for Returns Maximization via Improved TD3 Deep Reinforcement Learning
Published 2022-01-01“…Also, we use marginalised importance sampling to calculate the Q-return function for TD3, which ensures that the constructed strategies are more likely to learn high-value experiences while having higher robustness. It is shown in numerical experiments that the charging station management strategy (CSMS) based on the modified TD3 obtains the fastest convergence speed and the highest robustness and achieves the largest operational returns compared to the CSMS constructed using deep deterministic policy gradient (DDPG), actor-critic using Kronecker-factored trust region (ACKTR), trust region policy optimization (TRPO), proximal policy optimization (PPO), soft actor-critic (SAC), and the original TD3.…”
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4503
Myocarditis Diagnosis Using Semi-Supervised Generative Adversarial Network and Differential Evolution
Published 2024-09-01“…To minimize reliance on hyperparameters, the Random Key method is employed, optimized using the DE algorithm. The efficacy of the model is demonstrated on the Z-Alizadeh Sani myocarditis dataset, with further validation achieved through experiments on the EMIDEC dataset, assessing transfer learning (TL) effects. …”
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4504
Enhancing Ability Estimation with Time-Sensitive IRT Models in Computerized Adaptive Testing
Published 2025-06-01“…Seven models were evaluated, including standard 1PL-IRT and six response-time-adjusted variants: TP-IRT, STP-IRT, TWD-IRT, NRT-IRT, DTA-IRT, and ART-IRT. Three optimization techniques—Maximum Likelihood Estimation (MLE), full parameter optimization, and K-fold Cross-Validation (CV)—were employed to assess model performance. …”
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4505
Using 'sentinel' plants to improve early detection of invasive plant pathogens.
Published 2023-02-01“…Using Xylella fastidiosa infection in Olea europaea (European olive) as a current high profile case study, for which Catharanthus roseus (Madagascan periwinkle) is a candidate sentinel host, we apply a Bayesian optimisation algorithm to determine the optimal number of sentinel hosts to introduce for a given sampling effort, as well as the optimal division of limited surveillance resources between crop and sentinel plants. …”
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4506
Perbandingan Metode Penyelesaian Permasalahan Optimasi Lintas Domain dengan Pendekatan Hyper-Heuristic Menggunakan Algoritma Reinforcement-Late Acceptance
Published 2021-10-01“…Abstract An organization sometimes needs solutions to cross domain optimization problems. The problem of cross domain optimization is a problem that has different characteristics, for example between domain optimization scheduling, vehicle routes, bin packing, and SAT. …”
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4507
Investigation of Load Sharing and Dynamic Load Characteristics of a Split Torque Transmission System with Double-Helical Gear Modification
Published 2021-01-01“…The modified tooth surface of a third-stage double-helical gear is obtained by optimizing the amplitude of static loaded transmission error and meshing-in impact via nondominated sorting genetic algorithm-II (NSGA-II). …”
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4508
Phase Error Correction in Sparse Linear MIMO Radar Based on the Equivalent Phase Center Principle
Published 2024-10-01“…Multiple-input multiple-output (MIMO) technology is widely used in the field of radar imaging. Array sparse optimization reduces the hardware cost of MIMO radar, while virtual aperture and the equivalent phase center (EPC) principle simplify the radar signal model and reduce the computation and complexity of imaging algorithms. …”
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4509
Land Use Transition and Regional Development Patterns Under Shared Socioeconomic Pathways: Evidence from Prefecture-Level Cities in China
Published 2025-02-01“…These findings provide empirical evidence for optimizing land allocation policies during China’s economic transition.…”
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4510
Impact of rainy season on approach trajectories in high-altitude airport terminal maneuvering area: a clustering analysis
Published 2025-08-01“…After data preprocessing, a clustering algorithm was used to identify trajectory patterns and detect outlier trajectories. …”
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4511
Performance Analysis of Three-Phase Interleaved Buck-Boost Converter in Wind Energy Maximum Power Point Tracking
Published 2024-12-01“…The system responds accurately to wind speed changes, ensuring optimal energy extraction across various operational conditions. …”
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4512
Game-based resource allocation in heterogeneous downlink CR-NOMA network without subchannel sharing
Published 2025-01-01“…We frame this joint optimization of SU cluster formation and power allocation as a cooperative multi-armed bandit game. …”
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4513
Simplified Model Predictive for Controlling Circulating and Output Currents of a Modular Multilevel Converter
Published 2022-06-01“…In addition, a bilinear mathematical model of the MMC is derived and discretized to predict the states of the MMC for one step ahead. A sorting algorithm is used to retain the balancing capacitor voltage in each SM, while the cost function guarantees the regulation of the output current, and MMC circulating current. …”
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4514
Hybrid feature selection for real-time road surface classification on low-end hardware: A machine learning approach
Published 2025-09-01“…One of the challenges in this field is using optimal datasets and classification models that meet real-time applications on low-end hardware devices. …”
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4515
Development and Practice of Cloud Collaborative Platform for Downhole Measurement Tools
Published 2025-06-01“…In the paper, based on the remote operation requirements of coreless magnetic steering tool, a platform architecture of five modules, including simulation rehearsal, virtual training, remote operation, smart tool and intelligent decision, was designed in detail, achieving a whole process digitization from predrilling risk assessment and in-drilling acquisition and processing to post-drilling feedback and optimization, and a visual interface was developed. Moreover, to solve the problem of low far-field ranging accuracy, multiple magnetic steering data mining algorithms such as support vector machine (SVM), decision tree (DT), multilayer perceptron (MLP) and convolutional neural network (CNN) were built and compared, indicating that the robustness and generalization of the multilayer perceptron algorithm is the best. …”
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4516
Energy Optimisation in Aquaponics—Integrating Renewable Source and Water as Energy Buffer for Sustainable Food Production
Published 2025-04-01“…However, the high energy costs associated with maintaining optimal water conditions remain a critical factor in ensuring its long‐term viability. …”
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4517
Estimation of Current RMS for DC Link Capacitor of S-PMSM Drive System
Published 2023-10-01“…The proposed technique simplifies the tedious calculation process of traditional algorithms and guarantees high calculation accuracy, providing guidance for optimizing the selection of DC link capacitors and the design of life monitoring controllers. …”
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4518
Domain generalization for image classification based on simplified self ensemble learning.
Published 2025-01-01“…Specifically, we frame the problem as an optimization process with the objective of minimizing a weighted loss function that balances cross-domain discrepancies and sample complexity. …”
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4519
Bytecode-based approach for Ethereum smart contract classification
Published 2022-10-01“…In recent years, blockchain technology has been widely used and concerned in many fields, including finance, medical care and government affairs.However, due to the immutability of smart contracts and the particularity of the operating environment, various security issues occur frequently.On the one hand, the code security problems of contract developers when writing contracts, on the other hand, there are many high-risk smart contracts in Ethereum, and ordinary users are easily attracted by the high returns provided by high-risk contracts, but they have no way to know the risks of the contracts.However, the research on smart contract security mainly focuses on code security, and there is relatively little research on the identification of contract functions.If the smart contract function can be accurately classified, it will help people better understand the behavior of smart contracts, while ensuring the ecological security of smart contracts and reducing or recovering user losses.Existing smart contract classification methods often rely on the analysis of the source code of smart contracts, but contracts released on Ethereum only mandate the deployment of bytecode, and only a very small number of contracts publish their source code.Therefore, an Ethereum smart contract classification method based on bytecode was proposed.Collect the Ethereum smart contract bytecode and the corresponding category label, and then extract the opcode frequency characteristics and control flow graph characteristics.The characteristic importance is analyzed experimentally to obtain the appropriate graph vector dimension and optimal classification model, and finally the multi-classification task of smart contract in five categories of exchange, finance, gambling, game and high risk is experimentally verified, and the F1 score of the XGBoost classifier reaches 0.913 8.Experimental results show that the algorithm can better complete the classification task of Ethereum smart contracts, and can be applied to the prediction of smart contract categories in reality.…”
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4520
Deep Reinforcement Learning Based Transferable EMS for Hybrid Electric Trains
Published 2023-09-01“…To this end, an energy management strategy [EMS] has been developed that optimizes the distribution of energy to reduce the amount of hydrogen required to power the train. …”
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