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5381
Cooperative sensing method considering malicious nodes in cognitive radio networks
Published 2015-06-01“…Based on a more practical cognitive radio network with malicious users,the spectrum sharing network model based on the cooperative spectrum sensing was studied that the secondary user can dynamically adjust its transmit power based on cooperative sensing results.To avoid significant reduction in performance of spectrum sensing system caused by malicious nodes,it is aimed to study how to improve the performance of cooperative sensing.By introducing the convex optimization problem,the secondary network throughput is maximized under the certain detection probability conditions and the corresponding power constraints.Simulation results show that whether or not there are malicious nodes,the algorithm is efficient in calculating optimal sensing time and the optimal transmit powers,and the secondary network throughput is increased when the maximum interference power limits and the maximum transmit power restrictions are decreased.…”
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5382
Extended State Observer-Based Robust Model Predictive Velocity Control for Permanent Magnet Synchronous Motor
Published 2025-01-01“…Thus, the proposed method is robust against external disturbances and parameter uncertainties owing to feedback linearization, state feedback, and ESO-based MPC using the acceleration PMSM model. The proposed control algorithm was experimentally verified and it showed improved velocity tracking performance compared with ESO-based MPC using the conventional PMSM model.…”
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5383
Prediction of Urban Rail Transit Train Door Faults Based on FOA-BP Neural Network Model
Published 2025-05-01“…[Method] Taking the abnormal current signal of URT train door before failure as the research object, a FIR (finite impulse response) filter is designed to filter and dimensionally normalize the collected URT train door current signal data; the FOA (fruit fly optimization algorithm)-BP (back propagation) neural network model is used to train the closed state learning sample data of different doors after dimensional normalization, and output test results; FOA-BP results and output results after BP neural network models training are compared and analyzed. …”
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5384
Evolutionary fuzzy learning for Chinese medicine liver syndrome differentiation
Published 2025-12-01“…To determine the most appropriate fuzzy membership functions of the fuzzy learning machines, an evolutionary algorithm was employed to optimize the types and parameters of the fuzzy functions simultaneously. …”
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5385
Research on Channel Modeling and Communication Coverage of Wireless Sensor Networks in Barrier Area of Nuclear Power Plants
Published 2022-01-01“…Based on the channel modeling, this paper optimizes the coverage of the network in the obstacle area by using the improved teaching and learning group intelligent algorithm. …”
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5386
Dynamic Multibody Modeling of Spherical Roller Bearings with Localized Defects for Large-Scale Rotating Machinery
Published 2025-04-01“…In conclusion, the developed model represents a promising tool for generating useful datasets for training diagnostic and prognostic algorithms, thereby contributing to the improvement of predictive maintenance strategies in industrial settings. …”
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5387
EEG-Based Sleep Stage Classification via Neural Architecture Search
Published 2023-01-01“…The proposed NAS architecture mainly performs the architectural search through a bilevel optimization approximation, and the model is optimized by search space approximation and search space regularization with parameters shared among cells. …”
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5388
A model study of teaching method reform of computer laboratory course integrating internet of things technology.
Published 2024-01-01“…In particular, face capture services improve student concentration to create an efficient classroom atmosphere by using face recognition algorithms that support end devices. …”
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5389
Improving Vehicle Dynamics: A Fractional-Order PI<i><sup>λ</sup></i>D<i><sup>μ</sup></i> Control Approach to Active Suspension Systems
Published 2025-03-01“…A fractional-order PI<i><sup>λ</sup></i>D<i><sup>μ</sup></i> (FOPID) controller was proposed, and its structural parameters were optimized using a gray wolf optimization algorithm. …”
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5390
Intelligent decision-making and regulation method of gas extraction “borehole-pipe network” system
Published 2025-07-01“…Based on the improved particle swarm optimization algorithm, the intelligent optimization decision-making and regulation model of pipeline network is constructed. …”
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5391
Development of a multidimensional data model for efficient content-based image retrieval in big data storage
Published 2025-02-01“…The following results were obtained: Multi-Dimensional Cube (MDC) model with optimizations and search algorithms was developed. …”
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5392
Sizing and Characterization of Load Curves of Distribution Transformers Using Clustering and Predictive Machine Learning Models
Published 2025-04-01“…This study applies clustering techniques and predictive models to analyze and predict the behavior of transformer demand, optimize utilization factors, and improve infrastructure planning. …”
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5393
Modeling Autonomous Vehicles’ Altruistic Behavior to Human-Driven Vehicles in the Car following Events and Impact Analysis
Published 2023-01-01“…An extension car following framework with two possible soft optimization targets was proposed in this article to improve the experience of HDV followers with different following strategies by deep deterministic policy gradient (DDPG) algorithm. …”
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5394
Breaking language barriers with image detection and natural language processing model for English to Spanish translation
Published 2025-07-01“…Fine-tuning the transformer model parameters, including learning rate scheduling and gradient clipping, further optimized system performance. …”
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5395
Exploring the Current Status of Risk Stratification in Hypertrophic Cardiomyopathy: From Risk Models to Promising Techniques
Published 2025-03-01“…Some research suggests that integrating electrophysiological studies into traditional risk assessment models may further optimize risk prediction and significantly improve accuracy in detecting high risk patients. …”
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5396
Electric Vehicle Charging Network Planning for Maximizing Charging Service Capability and Operational Efficiency
Published 2020-12-01“…Firstly, the locations of each EVCS are optimized by genetic algorithm to enhance service capability of the EV charging network. …”
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5397
Research on Maneuvering Motion Prediction for Intelligent Ships Based on LSTM-Multi-Head Attention Model
Published 2025-03-01“…The results demonstrate that our proposed model significantly improves the accuracy of ship maneuvering predictions compared to standalone LSTM and MHAM algorithms and exhibits superior generalization performance.…”
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5398
Integrating direct observation and environmental DNA data to enhance species distribution models in riverine environments
Published 2025-05-01“…When eDNA and direct sampling sites are spatially arranged in an optimized fashion, the highest prediction skill for a fixed total number of sampling sites deployed is reached when both data types are included in the model fitting. …”
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5399
Exploring the Effects of Pre-Processing Techniques on Topic Modeling of an Arabic News Article Data Set
Published 2024-12-01“…This research investigates the impacts of pre-processing techniques on the effectiveness of topic modeling algorithms for Arabic texts, focusing on a comparison between BERTopic, Latent Dirichlet Allocation (LDA), and Non-Negative Matrix Factorization (NMF). …”
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5400
Anomaly Detection Using Machine Learning in Hydrochemical Data From Hot Springs: Implications for Earthquake Prediction
Published 2024-06-01“…Additionally, including sampling time in the data sets significantly improves the model's predictive performance. However, it is important to note that the model's predictive performance varies across different hot spring and indicators type, highlighting the importance of identifying optimal indicators for specific scenarios. …”
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