Showing 681 - 700 results of 1,339 for search 'algorithms and theoretical (developments OR development)', query time: 0.16s Refine Results
  1. 681

    Parametrical Synthesis of Radio Devices with the Set Quantity of Identical Cascades for Inclusion Variants of Jet Two-port Networks between a Nonlinear Part and Loading by A. A. Golovkov, A. V. Fomin

    Published 2021-12-01
    “…As a matching device, reactive, resistive, complex, or mixed quad-poles were used.Aim. Development of algorithms for parametric synthesis of radio devices with an arbitrary number of identical cascades of the "nonlinear part – matching reactive quadrupole" type according to the criterion of ensuring the specified frequency characteristics. …”
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  2. 682

    Machine Learning-Driven Acoustic Feature Classification and Pronunciation Assessment for Mandarin Learners by Gulnur Arkin, Tangnur Abdukelim, Hankiz Yilahun, Askar Hamdulla

    Published 2025-06-01
    “…This study confirms the effectiveness of objective assessment methods based on formant analysis in speech acquisition research, provides a theoretical basis for algorithm optimization in speech evaluation systems, and holds significant application value for the development of Computer-Assisted Language Learning (CALL) systems and the improvement of multi-ethnic Mandarin speech recognition technology.…”
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  3. 683

    The Evolution of Service Ecosystems Based on the Lotka–Volterra Model by Binbin Shi, Yu Li, Tingting Liang, Xixi Sun, Liquan Cui, Haonan Zhang, Yuyu Yin

    Published 2025-05-01
    “…Diversification and business expansion have become key strategies for modern business development, prompting many large companies to move from singular service models to diversified service strategies, ultimately evolving into comprehensive service ecosystems. …”
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  4. 684

    CONTROL AND ESTIMATION FOR A CLASS OF IMPULSIVE DYNAMICAL SYSTEMS by Tatiana F. Filippova

    Published 2019-12-01
    “…We present several theoretical schemes and the estimating algorithms allowing to find the upper bounds for reachable sets of the studied control system.   …”
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  5. 685

    Position Accuracy and Distributed Beamforming Performance in WSNs: A Simulation Study by José Casca, Prabhat Gupta, Marco Gomes, Vitor Silva, Rui Dinis

    Published 2025-05-01
    “…A comprehensive simulation testbed was developed to assess how varying network topologies and position uncertainties impact system performance. …”
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  6. 686
  7. 687

    Personalized Human Thermal Sensation Prediction Based on Bayesian-Optimized Random Forest by Hao Yang, Maoyu Ran

    Published 2025-07-01
    “…Subsequently, a simple thermal sensation prediction model was developed using multiple linear regression. More accurate personalized thermal sensation prediction models were then constructed using various machine learning algorithms, followed by a comparative analysis of their performance. …”
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  8. 688

    Elastoplastic Constitutive Model for Energy Dissipation and Crack Evolution in Rocks by Lei Cheng, Zhi Yu, Xinxi Liu

    Published 2025-04-01
    “…Finally, using argillaceous siltstone as an example, the validity of the theoretical model and its algorithmic implementation is verified through experimental testing, result analysis, model construction, secondary development, and numerical simulation. …”
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  9. 689

    Pattern synthesis method for arbitrary arrays with desired mainloble response by Dian-fei PAN, Nai-ping CHENG

    Published 2014-09-01
    “…A pattern synthesis method based on adaptive array theory and convex optimization principle was proposed for arbitrary arrays,especially considering the influence of different orientation on array pattern.Firstly,the array pattern with special sideloble shape is obtained by adaptive array theory method; and then,the mainloble pointing to 0° is taken as reference to determine the pattern mainloble with variant steering angle.Finally,the optimal array pattern synthesis with desired mainloble response is converted to a second-order cone programming problem.The resulting optimization problem is nonconvex and is implemented via iterative algorithms of convex optimization,which can be solved using the second-order cone programming method at each iteration.Taking the method developed can obtain satisfied mainlobe response and less synthesized error in sideloble region.Theoretical analyses and simulation results show that the synthe-sized pattern has the same mainloble performance as the desired mainlabole in different orientation,and also the sideloble can maintain the shape to suppress the dynamic interference.…”
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  10. 690

    Finding near-optimal groups of epidemic spreaders in a complex network. by Geoffrey Moores, Paulo Shakarian, Brian Macdonald, Nicholas Howard

    Published 2014-01-01
    “…We also demonstrate that the optimized algorithm we develop scales effectively.…”
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  11. 691

    Variational quantum Hamiltonian engineering by Benchi Zhao, Keisuke Fujii

    Published 2025-05-01
    “…We first develop a theoretical framework that transforms the Pauli norm minimization problem into a vector l_{1}-norm minimization problem. …”
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  12. 692

    Exploration of ductility for refractory high entropy alloys via interpretive machine learning by Shaolong Zheng, Lingwei Yang, Liyang Fang, Chenran Xu, Guanglong Xu, Yifang Ouyang, Xiaoma Tao

    Published 2025-07-01
    “…Integration of the shapley additive explanations (SHAP) model with sample data reveals key relationships between physical parameters and RHEA ductility, providing theoretical insights for developing high-ductility RHEAs. …”
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  13. 693

    Prediction method of gas emission in working face based on feature selection and BO-GBDT by MA Wenwei

    Published 2024-12-01
    “…To address this issue, a gradient boosting decision tree (GBDT) model for gas emission prediction was developed. Five feature selection algorithms were applied to filter the dataset, and the model fit, computational time, and prediction accuracy of each feature combination in the GBDT model were analyzed. …”
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  14. 694

    Ultrasonic and Microwave-assisted Solid-Liquid Extraction of Ginkgo biloba Phenolics: Study about Mass Transfer and PID Control by Chi XU, Hebin XU, Rui ZHU, Jing LI, Dandan LI, Yongbin HAN, Yi ZHENG, Yang TAO

    Published 2025-02-01
    “…A diffusion-based mathematical model was developed to explore the mass transfer mechanism about the studied extraction processes, and PID control algorithms were implemented to accurately control the extraction process. …”
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  15. 695

    Advanced Operator Theory for Energy Market Trading: A New Framework by Michele Bufalo, Viviana Fanelli

    Published 2025-06-01
    “…Furthermore, we apply these findings to energy market trading by developing specialized simulation algorithms and forecasting models. …”
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  16. 696

    The participation of a juvenile victim’s representative in criminal proceedings: procedural and forensic aspects by I. O. Iemets

    Published 2024-12-01
    “…Based on the generalization of theoretical developments of Ukrainian scholars, it is found that they prefer to study the problem of protection of rights and legitimate interests of a minor suspect or accused. …”
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  17. 697

    Variational formulation of active nematic fluids: theory and simulation by W Mirza, A Torres-Sánchez, G Vilanova, Marino Arroyo

    Published 2025-01-01
    “…Continuum hydrodynamic descriptions combined with numerical simulations have been used to understand such complex systems. The development of thermodynamically consistent theories and numerical methods to model active nemato-hydrodynamics is eased by mathematical formalisms enabling systematic derivations and structured-preserving algorithms. …”
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  18. 698

    Machine-learning synergy in high-entropy alloys: A review by Sally Elkatatny, Walaa Abd-Elaziem, Tamer A. Sebaey, Moustafa A. Darwish, Atef Hamada

    Published 2024-11-01
    “…Subsequently, this review discusses various ML models, including supervised and unsupervised algorithms, focusing on guiding readers through algorithm selection and model evaluation. …”
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  19. 699
  20. 700

    OLAP Techniques for Approximation and Mining Query Answering by Murtadaha Hamd, Waleed Hassan

    Published 2010-12-01
    “…In this work the SALES Data Warehouse  (<strong>SALESDW</strong>) , procedures are implemented and algorithms are developed like ODBC (Open DataBase Connectivity) for different sources, and Data cleansing to carry out the consistency of Data Warehouse (DW). …”
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