Showing 481 - 500 results of 18,849 for search 'sample random sampling', query time: 0.19s Refine Results
  1. 481
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    Versatility Evaluation of Landslide Risk with Window Sizes and Sampling Techniques Based on Deep Learning by Fudong Ren, Koichi Isobe

    Published 2024-11-01
    “…By experimenting with CNN input window sizes ranging from 3 × 3 to 27 × 27 pixels and employing diverse sampling techniques, we demonstrate that larger windows enhance the model’s predictive accuracy by capturing a wider range of environmental interactions critical for effective landslide modeling. …”
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  6. 486

    A PRELIMINARY STUDY OF SENTIMENT ANALYSIS ON COVID-19 NEWS: LESSON LEARNED FROM DATA ACQUISITION, PRE-PROCESSING, AND DESCRIPTIVE ANALYTICS by Rahmatin Nur Amalia, Kusman Sadik, Khairil Anwar Notodiputro

    Published 2023-12-01
    “…In order to select the representative news, two-step sampling was employed by using stratified and systematic random sampling. …”
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  7. 487

    On the Equivalence Test and Sample Size Procedures for Simple Linear Regressions with Applications to ANCOVA and Moderation Analysis by Gwowen Shieh

    Published 2024-10-01
    “…The equivalence tests can help assess the negligible trends and similar responses in a single regression line and evaluate the unimportant interaction-moderation effects and comparable simple effects between two linear regression lines. Exact power and sample size formulas are also derived for design planning, and the proposed procedures have the distinct property of accommodating the random properties of both the response and predictor variables. …”
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  8. 488
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    Insights from Optimized Non-Landslide Sampling and SHAP Explainability for Landslide Susceptibility Prediction by Mengyuan Li, Hongling Tian

    Published 2025-01-01
    “…Results show that LCF-based correction achieved the highest performance, while a 1:5 ratio proved optimal in random sampling, aligning with regional characteristics. …”
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  10. 490

    Evaluating Sampling Designs to Survey Fish Diversity in Lakes From Northern Temperate Zones by Erik García‐Machado, Eric Normandeau, Guillaume Côté, Isabeau Caza‐Allard, Charles Babin, Louis Bernatchez

    Published 2024-11-01
    “…However, we found that, under certain circumstances, stratified sampling outperformed random sampling, requiring lower numbers of samples to detect the same species diversity. …”
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  11. 491

    Difference-Cum-Exponential-type estimators for estimation of finite population mean in survey sampling. by Maria Javed, Muhammad Irfan, Sandile C Shongwe, Muhammad Ali Hussain, Mutum Zico Meetei

    Published 2025-01-01
    “…In this article, difference-cum-exponential-type estimators for population mean utilizing bivariate auxiliary information based on non-conventional measures under simple and stratified random sampling schemes have been suggested. Mathematical properties such as bias and mean squared error are derived. …”
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  12. 492

    Improved EWMA and CUSUM Charts Under Modified Successive Sampling for Monitoring Process Dispersion by Tahir Mahmood, Mehvish Hyder, Syed Muhammad Muslim Raza

    Published 2025-05-01
    “…Although quality evaluation samples are typically obtained via simple random sampling (SRS), the modified successive sampling (MSS) method is favored to reduce sampling duration and expenses. …”
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    Comparison of Three Sampling Methods for Estimating Grasshopper (Orthoptera, Acrididea) Assemblages in African Rainforests by Charly Oumarou Ngoute, Philène C. A. Um Nyobe, Sévilor Kekeunou, Michel Lecoq

    Published 2025-01-01
    “…This study presents the comparative assessment of three sampling methods for estimating grasshopper assemblages in African rainforests: 30 min of random net sweeping, 1 m2 open quadrat sampling, and pitfall trapping. …”
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    Efficient sampling designs to assess biodiversity spatial autocorrelation: should we go fractal? by Laroche, Fabien

    Published 2024-08-01
    “…Mixing random sampling points and systematic grid (‘hybrid’ designs) is a classic solution to make a trade-off. …”
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  17. 497

    Forest Change Monitoring Based on Block Instance Sampling and Homomorphic Hypothesis Margin Evaluation by Wei Feng, Fan Bu, Puxia Wu, Gabriel Dauphin, Yinghui Quan, Mengdao Xing

    Published 2024-09-01
    “…While remote sensing image classification offers substantial advantages over ground surveys for monitoring changes in forests, it encounters several challenges. Firstly, training samples in classification algorithms are typically selected through pixel-based random sampling or manual regional sampling. …”
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  18. 498

    Self-sampling for human papillomavirus (HPV) testing: a systematic review and meta-analysis by Ping Teresa Yeh, Caitlin E Kennedy, Hugo de Vuyst, Manjulaa Narasimhan

    Published 2019-06-01
    “…Introduction Human papillomavirus (HPV) self-sampling test kits may increase screening for and early detection of cervical cancer and reduce its burden globally. …”
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  19. 499

    Parameter Optimization of Droop Controllers for Microgrids in Islanded Mode by the SQP Method with Gradient Sampling by Peijie Li, Ziyi Yang, Shuchen Huang, Jun Zhang

    Published 2021-01-01
    “…The Sequential Quadratic Programming with Gradient Sampling (SQP-GS) is implemented to optimize the droop controller parameters for solving the nonsmooth problem. …”
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  20. 500

    Attributes of the soil with cactus pear under organic fertilization, different spacings and sampling times by Milton C. Padilha Junior, Sérgio L. R. Donato, Paulo E. R. Donato, João A. da Silva

    Published 2020-07-01
    “…ABSTRACT The objective of this study was to evaluate the chemical attributes of the soil cultivated with ‘Gigante’ cactus pear under different doses of organic fertilizer, planting spacings and sampling times. Four doses of organic fertilizer with bovine manure (0, 30, 60 and 90 Mg ha-1 year-1), three spacings (1.0 x 0.5, 2.0 x 0.25 and 3.0 x 1.0 x 0.25 m) and three sampling times (0, 390 and 600 days after planting) corresponding to the periods prior to planting, growth and harvest of the first cycle, were evaluated in a randomized block design in a 4 x 3 x 3 factorial scheme, with three repetitions. …”
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