Search alternatives:
selection » detection (Expand Search)
Showing 2,621 - 2,640 results of 2,920 for search 'complex selection (efficiency OR efficient)', query time: 0.19s Refine Results
  1. 2621

    Optimization of Sparse Concentric Ring Arrays for Low Sidelobe by Kesong Chen, Yafei Li, Jiajia Shi

    Published 2019-01-01
    “…The MGA uses real number to code the optimization variable, and it reduces the complexity of coding and improves the search efficiency. …”
    Get full text
    Article
  2. 2622

    Recent Advances in Understanding the Keys Factors Influencing Pressurized Liquid Extraction of Secondary Metabolites: A Comprehensive Review by Pauline Donn, Sepidar Seyyedi-Mansour, Franklin Chamorro, Paula Garcia-Oliveira, Javier Echave, Ana Perez-Vazquez, Paula Barciela, Lucia Cassani, Miguel Angel Prieto

    Published 2024-07-01
    “…This communication provides an overview of recent advancements in understanding the key factors influencing the efficiency and selectivity of the PLE of these bioactive compounds. …”
    Get full text
    Article
  3. 2623

    A network traffic classification method based on random forest and improved convolutional neural network by Bensheng YUN, Xiaoya GAN, Yaguan QIAN

    Published 2023-07-01
    “…In order to improve the efficiency and reduce the complexity of network traffic classification model, a classification method based on random forest and improved convolutional neural network was proposed.Firstly, the random forest was used to evaluate the importance of each feature of network traffic, and the feature was selected according to the importance ranking.Secondly, AdamW optimizer and triangular cyclic learning rate were adopted to optimize the convolutional neural network classification model.Then, the model was built on Spark cluster to realize the parallelization of model training.Adopting triangular cyclic learning rate with constant cycle amplitude, the experimental results of selecting 1 024, 400, 256 and 100 most important features as input show that the model accuracy is improved to 97.68%, 95.84%, 95.03% and 94.22%, respectively.The 256 most important features were selected and the experimental results based on adopting different learning rates show that the learning rate with half the cycle amplitude works best, the accuracy of the model is improved to 95.25%, and training time of the model is reduced by nearly half.…”
    Get full text
    Article
  4. 2624

    Evaluation of Intrusion Detection Systems in Cyber Security using Fuzzy OffLogic and MCDM Approach by Zhengrui Yang

    Published 2025-06-01
    “…In this study, thirteen widely used IDS models are assessed using a multi-criteria evaluation framework across four key dimensions: detection accuracy, resource efficiency, scalability, and false positive rate. The goal is to support informed, datadriven decision-making for stakeholders such as policymakers, IT administrators, and security analysts when selecting an appropriate IDS. …”
    Get full text
    Article
  5. 2625

    Improved SLM algorithm for PAPR reduction in OFDM system by Ce JI, Wenjing ZHU, Ying WEI, Dianxia JIA

    Published 2018-04-01
    “…In order to reduce the peak to average power ratio (PAPR) of the conventional selective mapping (SLM) algorithm,decrease the transmission of side-band information,and improve the spectral efficiency in the orthogonal frequency division multiplexing (OFDM) system,the TL-SLM algorithm based on the conversion matrix and the chaotic sequence was proposed firstly.Although the TL-SLM algorithm could effectively decrease the transmission of side-band information,the reduction of PA P R was limited.To solve this problem,an improved TL-SLM algorithm based on the rotation vector was proposed,which was the TR-SLM algorithm.TR-SLM algorithm introduced the rotation vector to generate more time-domain alternative signals to further reducing the PA P R.The performance analysis shows that although the TL-SLM algorithm and the TR-SLM algorithm increase the complexity a little,the PA P R performance is effectively improved and the transmission of side-band information is greatly reduced.…”
    Get full text
    Article
  6. 2626

    Greener solvents in extraction of proteins and peptides by Katarína Maráková

    Published 2025-02-01
    “…The sample pretreatment still represents a fundamental aspect of any analytical workflow, and the implementation of sustainable and efficient extraction of proteins is essential to satisfy the increasing requirements for high-quality extraction of proteins from their natural sources. …”
    Get full text
    Article
  7. 2627

    Comparison of Hadoop Mapreduce and Apache Spark in Big Data Processing with Hgrid247-DE by Firmania Dwi Utami, Femi Dwi Astuti

    Published 2024-11-01
    “…This study provides valuable insights into the strengths and limitations of each framework, offering guidance for practitioners and researchers when selecting the appropriate tool for specific big data processing requirements, particularly with respect to speed, memory usage, and task complexity.…”
    Get full text
    Article
  8. 2628

    New fruit waste-derived activated carbons of high adsorption performance towards metal, metalloid, and polymer species in multicomponent systems by Sylwia Kukowska, Piotr Nowicki, Katarzyna Szewczuk-Karpisz

    Published 2025-01-01
    “…In the two-component systems, polymers could favour metal/metalloid adsorption based on complexation phenomena. However, the most efficient and environmentally safe activated carbon turned out to be the one obtained from orange peels by microwave-assisted, direct activation at 800 °C in the CO2 atmosphere.…”
    Get full text
    Article
  9. 2629

    Design and performance evaluation of low-voltage solid-state DCCB using capacitor-based surge mitigation techniques by Mehdi Moradian, Tek Tjing Lie, Kosala Gunawardane

    Published 2025-06-01
    “…The optimal surge absorption configuration will be chosen based on its ability to meet various criteria, including efficient operation, rapid response, minimal complexity on both power and control sides, and the involvement of active and passive components. …”
    Get full text
    Article
  10. 2630

    Influence of Electron Transfer Mediators in the Pd(II)-Catalyzed Oxidative Carbonylation of Aniline by Andrea Vavasori, Lucio Ronchin, Luca Pietrobon, Sara Bravo

    Published 2025-05-01
    “…Testing several Pd(II) complexes, metal cocatalysts, and promoters, we have found that the [PdCl<sub>2</sub>(dppf)]/FeCl<sub>3</sub>/LiBr = 1/1200/200 (mol/mol) system efficiently catalyzes the carbonylation of aniline to form 1,3–diphenylurea selectively (100%) with a TOF of ca. 1177 h<sup>−1</sup>. …”
    Get full text
    Article
  11. 2631

    Heterogeneous Electrocatalytic CO2 Reduction by Supported Molecular Catalysts Well Dispersed on Electrode Surface by Ke Ma, Shiyu Zhang, Weixuan Nie

    Published 2025-07-01
    “…Among various electrocatalysts, molecular catalysts, particularly transition metal complexes, stand out due to the high selectivity for single specific products and desirable tunability, enabling rational optimization of catalytic performance. …”
    Get full text
    Article
  12. 2632

    Container Liner Shipping System Design Considering Methanol-Powered Vessels by Zhaokun Li, Xinke Yu, Jianning Shang, Kang Chen, Xu Xin, Wei Zhang, Shaoqiang Yu

    Published 2025-04-01
    “…Moreover, we propose an adaptive piecewise linearization approach combined with a genetic algorithm, which can efficiently solve large-scale instances. Sensitivity analyses of fuel types and fuel prices are conducted to demonstrate the effectiveness of the model and algorithm. …”
    Get full text
    Article
  13. 2633
  14. 2634

    3D CAD model classification based on Convolutional Neural Network by DING Bo, YI Ming

    Published 2020-02-01
    “…Due to the intrinsic complexity of 3D CAD models, the automatic model classification methods are scarce. …”
    Get full text
    Article
  15. 2635

    Tandem reductive amination and deuteration over a phosphorus-modified iron center by Haifeng Qi, Yueyue Jiao, Jianglin Duan, Nicholas F. Dummer, Bin Zhang, Yujing Ren, Stuart H. Taylor, Yong Qin, Kathrin Junge, Haijun Jiao, Graham J. Hutchings, Matthias Beller

    Published 2025-02-01
    “…Abstract Deuterated amines are key building blocks for drug synthesis and the identification of metabolites of new pharmaceuticals, which drives the search for general, efficient, and widely applicable methods for the selective synthesis of such compounds. …”
    Get full text
    Article
  16. 2636

    Preprocessing optimization algorithm based on partial channel information feedback in wideband OFDM systems by WANG Xia1, ZHANG Guo-mei1, XUE Tao2

    Published 2011-01-01
    “…To mitigate inter-block interference(IBI) and inter-carrier interference(ICI) in an orthogonal frequency divi-sion multiplexing(OFDM) system,pre-processing approaches at transmitters based on full channel state information(CSI) had been proposed,the performance improved and receiver simplied.However,feeding full CSI back would oc-cupy scarce bandwidth and was impractical sometimes for the systems with high real-time demand.To deal with this problem,a preprocessing optimization based on partial CSI feedback was investigated and three selected preprocessing approaches of optimization matrix were developed and tested.Computer simulation results showed that the proposed op-timization algorithm can effectively cancel IBI and ICI and significantly improve the performance in wideband OFDM systems.Compared with the pre-processing approaches at transmitters based on full CSI,under the condition of meeting the demand for quality of services(QoS),the proposed scheme has high spectral efficiency and low feedback and com-putation complexity.…”
    Get full text
    Article
  17. 2637

    Sustainability Measurement of Farming System in Isfahan Agricultural Sector (Smallholders-Rural Production Cooperatives- Farm Corporation) by Saedali Nekooei Naenii, Yosef Ghanbari, Hamid Barghi

    Published 2016-10-01
    “…Stability measurement is a complex interaction between technology, the environment and society. …”
    Get full text
    Article
  18. 2638

    Research on Personal Loan Default Risk Assessment Based on Machine Learning by Liu Guangsen

    Published 2025-01-01
    “…In the present era of rapid development of the Internet and big data, the scale of personal loans and the complexity of personal credit data are growing rapidly. …”
    Get full text
    Article
  19. 2639

    A Survey of Open-Source Tools for Transmission and Distribution Systems Research by Jennifer Appiah-Kubi, Alexander A. Anderson, Hayden M. Reeve

    Published 2025-01-01
    “…Increasing awareness of these available resources seeks to accelerate their broader use, leading to more efficient and standardized grid analysis. This review paper (which is part of a larger survey effort that studied over 400 tools in the transmission, distribution, buildings, and electric vehicles space) outlines selected open-source resources that have been developed in power transmission and distribution systems research. …”
    Get full text
    Article
  20. 2640

    An energy-balanced multi-sensor scheduling scheme for collaborative target tracking in wireless sensor networks by Pengcheng Fu, Hongying Tang, Yongbo Cheng, Baoqing Li, Hanwang Qian, Xiaobing Yuan

    Published 2017-03-01
    “…In addition, we also design an efficient multi-sensor node collaborative method to track a single target and to timely report its state to the remote end. …”
    Get full text
    Article