Showing 1,561 - 1,580 results of 13,904 for search '"estimator"', query time: 0.06s Refine Results
  1. 1561

    Dual Use of Auxiliary Information for Estimating the Finite Population Mean under the Stratified Random Sampling Scheme by Sohaib Ahmad, Sardar Hussain, Muhammad Aamir, Uzma Yasmeen, Javid Shabbir, Zubair Ahmad

    Published 2021-01-01
    “…The estimators proposed in different situations were investigated and provided a minimum mean square error relative to all other estimators considered. …”
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    Article
  2. 1562

    Systematic Review of Remote Sensing Prediction Models and Tools for Estimating Surface Soil Moisture Content of an Area by P. Yamakili, M. R. Nicholaus, K. A. Greyson

    Published 2025-02-01
    “…Different methods are used to estimate Soil Moisture. Hence, the objective of this paper was to systematically review remote sensing (RS) prediction models and tools for estimating surface soil moisture (SM) content of an area using different scholar ‘s methodologies, and their performance. …”
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    Article
  3. 1563

    VB-Based Gaussian Sum Cubature Kalman Filter for Adaptive Estimation of Unknown Delay and Loss Probability by Ruipeng Wang, Xiaogang Wang, Haojie Zhang

    Published 2024-01-01
    “…Simulation results for a target tracking problem show that the proposed algorithm has a better performance in the presence of MRMDL and can estimate the unknown measurement delay and loss probability accurately.…”
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    Article
  4. 1564

    Bayesian and Frequentist Estimation of Stress-Strength Reliability from a New Extended Burr XII Distribution by Varun Agiwal, Shikhar Tyagi, Christophe Chesneau

    Published 2025-02-01
    “…Bayes estimates are obtained under the squared error and entropy loss functions. …”
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    Article
  5. 1565

    A DOA Estimation Method Based on an Improved Transformer Model for Uniform Linear Arrays with Low SNR by Wei Wang, Lang Zhou, Kun Ye, Haixin Sun, Shaohua Hong

    Published 2024-01-01
    “…In this paper, the Star-Transformer model is improved to obtain more accurate direction of arrivals (DOA) estimation of underwater sonar uniform linear array (ULA) under low signal-to-noise ratio (SNR) conditions. …”
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    Article
  6. 1566

    A comparative approach of analyzing data uncertainty in parameter estimation for a Lumpy Skin Disease model by Edwiga Renald, Miracle Amadi, Heikki Haario, Joram Buza, Jean M. Tchuenche, Verdiana G. Masanja

    Published 2025-01-01
    “…Mathematical models of real-life systems inherit loss of information, and consequently, accuracy of their results is often complicated by the presence of uncertainties in data used to estimate parameter values. There is a need for models with knowledge about the confidence of their long-term predictions. …”
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  7. 1567
  8. 1568

    Two 2-D DOA Estimation Methods with Full and Partial Generalized Virtual Aperture Extension Technology by Riheng Wu, Yangyang Dong, Zhenhai Zhang, Le Xu

    Published 2019-01-01
    “…We address the two-dimensional direction-of-arrival (2-D DOA) estimation problem for L-shaped uniform linear array (ULA) using two kinds of approaches represented by the subspace-like method and the sparse reconstruction method. …”
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    Article
  9. 1569

    A Comparative Analysis Between the ENVISAT and ICEYE SAR Systems for the Estimation of Sea Surface Current Velocity by Virginia Zamparelli, Pietro Mastro, Antonio Pepe, Simona Verde

    Published 2025-01-01
    “…First, the basic principles of DCA and the theoretical precision of the Doppler Centroid (DC) estimates are introduced. Subsequently, the role of the DC measurements in retrieving the sea surface current velocity is addressed. …”
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  10. 1570

    Estimation of Suspended Sediment Concentration from Remote Sensing and In Situ Measurement over Lake Tana, Ethiopia by Zelalem R. Womber, Fasikaw A. Zimale, Mebrahtom G. Kebedew, Bekalu W. Asers, Nikole M. DeLuca, Christian D. Guzman, Seifu A. Tilahun, Benjamin F. Zaitchik

    Published 2021-01-01
    “…Applying the developed regression model, a 10-year time series of SSC from 2008–2017 for May-August was estimated and the trend was tested using the Mann–Kendall trend test. …”
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  11. 1571
  12. 1572

    On Vibration Joint Time-Frequency Investigations of CNC Milling Machines for Tool Trajectory Task Conformity Estimation by Silviu Nastac

    Published 2018-01-01
    “…This study deals with estimation of milling shape accuracy and trajectory conformity for small CNC 3D milling machines, based on vibration monitoring during the regular working cycles. …”
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  13. 1573

    Efficiency of Ratio, Product, and Regression Estimators under Maximum and Minimum Values, Using Two Auxiliary Variables by Abdullah Y. Al-Hossain, Mursala Khan

    Published 2014-01-01
    “…In the present paper we have suggested some estimators which estimate the population parameters efficiently. …”
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    Article
  14. 1574

    Decentralized State Estimation Algorithm of Centralized Equivalent Precision for Formation Flying Spacecrafts Based on Junction Tree by Mengyuan Dai, Hua Mu, Meiping Wu, Zhiwen Xian

    Published 2015-01-01
    “…To the state of the art, most decentralized algorithms for formation flying are derived from centralized EKF by simplification and decoupling, rendering suboptimal estimations. In this paper, typical decentralized state estimation algorithms are reviewed, and a new scheme for decentralized algorithms is proposed. …”
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  15. 1575

    EFNet: estimation of left ventricular ejection fraction from cardiac ultrasound videos using deep learning by Waqas Ali, Wesam Alsabban, Muhammad Shahbaz, Ali Al-Laith, Bassam Almogadwy

    Published 2025-01-01
    “…To address this, we developed a method integrating convolutional neural networks (CNN) and transformer models for direct EF estimation from ultrasound video scans. This article introduces a Residual Transformer Module (RTM) that extends a 3D ResNet-based network to analyze (2D + t) spatiotemporal cardiac ultrasound video scans. …”
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  16. 1576
  17. 1577
  18. 1578

    Evaluating the Lifetime Performance Index Based on the Bayesian Estimation for the Rayleigh Lifetime Products with the Upper Record Values by Wen-Chuan Lee, Jong-Wuu Wu, Ching-Wen Hong, Shie-Fan Hong

    Published 2013-01-01
    “…This study constructs a Bayesian estimator of CL under a Rayleigh distribution with the upper record values. …”
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  19. 1579

    Optimal Weak Type Estimates for the P-ADIC Hardy Type Operators on Higher-Dimensional Product Spaces by Junchao Wei

    Published 2022-01-01
    “…In this paper, we introduce the fractional p-adic Hardy operators and its conjugate operators and obtain its optimal weak type estimates on the p-adic Lebesgue product spaces.…”
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  20. 1580

    A Speed-Invariant Template-Based Approach for Estimating Running Temporal Parameters Using Inertial Sensors by Rachele Rossanigo, Marco Caruso, Elena Dipalma, Cristine Agresta, Lucia Ventura, Franca Deriu, Andrea Manca, Taian M. Vieira, Valentina Camomilla, Andrea Cereatti

    Published 2025-01-01
    “…However, state-of-the-art inertial-based methods for estimating running temporal parameters are limited to a restricted range of running speeds and, thus, not able to analyze running at variable speeds. …”
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    Article