Showing 241 - 260 results of 9,156 for search 'issues samples', query time: 0.13s Refine Results
  1. 241

    An electronic system to collect distance‐sampling data during helicopter surveys of northern bobwhite by Matthew J. Schnupp, Fidel Hernández, Eric J. Redeker, Fred C. Bryant, Joshua P. Rusk, Stephen J. Demaso, Joseph P. Sands, Trent W. Teinert, Leonard A. Brennan, Dale Rollins, Robert M. Perez

    Published 2013-03-01
    “…However, practical issues arise when using distance sampling during aerial surveys, such as obtaining accurate perpendicular distances. …”
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  2. 242
  3. 243

    Students' Socio-scientific Reasoning to Measure Decision-Making Ability Related to Sustainable Energy Issues by Rifqi Anjar Mustika, Wirawan Fadly, Martinez David

    Published 2025-01-01
    “…This study uses quantitative research with a cross-sectional survey research design. The research sample was determined by purposive sampling, and 26 samples were collected from class VII B at SMPN 1 Sambit Ponorogo. …”
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  4. 244

    Sampled-Data-Based Local Stability of Neutral Time-Delay Systems With Actuator Saturation by Dapeng Li, Shuiqing Ye, Chao Ge

    Published 2025-01-01
    “…In this work, the local stability issue of neutral delay system with actuator saturation under sampled-data controller is studied. …”
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    Article
  5. 245

    CHPOA-DBN Transformer Fault Diagnosis Method Considering Sample Within-Class Imbalance by Shuang WANG, Qian LUO, Bo TANG, Lan JIANG, Jin LI

    Published 2023-08-01
    “…However, they share two prominent drawbacks, which are the low accuracy issue caused by the within-class imbalance of transformer faults samples and the artificial determination of the network parameters of deep belief network (DBN). …”
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    Article
  6. 246
  7. 247

    Factors Affecting Personal Information Sharing: Small-Scale Sample Analysis on Social Media by Belia Rida Syifa Fauzia, Lukman Yudokusumo, Yova Ruldeviyani

    Published 2024-08-01
    “…The sample used in this research consisted of social media users in Indonesia. …”
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    Article
  8. 248

    Application research of sample data generation based on improved Cycle-GAN in intrusion detection by ZENG Qingpeng, GUO Hangkai

    Published 2025-04-01
    “…The issue of slow data updates, insufficient data samples for certain intrusion categories, and imbalanced distributions between normal and abnormal data sets in standard intrusion detection data sets have been addressed through both data sample augmentation and detection model optimization. …”
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  9. 249

    Lognormal-Based Sampling for Fission Product Yields Uncertainty Propagation in Pebble-Bed HTGR by Yizhen Wang, Menglei Cui, Jiong Guo, Jinlin Niu, Yingjie Wu, Baokun Liu, Fu Li

    Published 2020-01-01
    “…Here, we evaluate thermal neutron-induced U-235 independent fission yields covariance matrix by the Bayesian updating method, and then we use lognormal-based sampling method to overcome the negative fission yields samples issue. …”
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  10. 250
  11. 251

    An improved SMOTE algorithm for enhanced imbalanced data classification by expanding sample generation space by Ying Li, Yali Yang, Peihua Song, Lian Duan, Rui Ren

    Published 2025-07-01
    “…Although the Synthetic Minority Over-sampling Technique (SMOTE) and its variants alleviate this issue by generating synthetic samples, they frequently overlook local density and distribution characteristics. …”
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    Article
  12. 252

    Time variations in the generation time of an infectious disease:Implications for sampling to appropriately quantify transmissionpotential by Hiroshi Nishiura

    Published 2010-09-01
    “…An appropriate quantification of the transmission potential requires the estimation of the cohort generation time during the initial growth phase of an epidemic or adjustment of the time-effect (e.g., adjustment of the growth rate of the epidemic during the sampling time) on the period generation time. A similar issue also applies to the estimation of the effective reproduction number as a function of calendar time. …”
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    Article
  13. 253

    Semi-Supervised Nuclei Instance Segmentation with Category-Adaptive Sampling and Region-Adaptive Attention by Xunci Li, Die Luo, Zimei Wei, Junan Long, Zhiwei Ye

    Published 2025-05-01
    “…This challenge has motivated researchers to explore ways to further enhance segmentation performance under limited labeling conditions. To address this issue, this paper proposes a network based on category-adaptive sampling and attention mechanisms for semi-supervised nuclei instance segmentation. …”
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  14. 254

    Protein identification using Cryo-EM and artificial intelligence guides improved sample purification by Kenneth D. Carr, Dane Evan D. Zambrano, Connor Weidle, Alex Goodson, Helen E. Eisenach, Harley Pyles, Alexis Courbet, Neil P. King, Andrew J. Borst

    Published 2025-06-01
    “…However, standard purification strategies often encounter challenges, such as unintended co-purification of contaminants alongside the target protein. This issue is particularly problematic for self-assembling protein nanomaterials, where unexpected geometries may reflect novel assembly states, cross-contamination, or native proteins originating from the expression host. …”
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  15. 255

    A novel method for power transformer fault diagnosis considering imbalanced data samples by Jun Chen, Yong Wang, Lingming Kong, Yilong Chen, Mianzhi Chen, Qian Cai, Gehao Sheng

    Published 2025-01-01
    “…IntroductionMachine learning-based power transformer fault diagnosis methods often grapple with the challenge of imbalanced fault case distributions across different categories, potentially degrading diagnostic accuracy. To address this issue and enhance the accuracy and operational efficiency of power transformer fault diagnosis models, this paper presents a novel fault diagnosis model that integrates Neighborhood Component Analysis (NCA) and k-Nearest Neighbor (KNN) learning, with the incorporation of correction factors.MethodsThe methodology begins by introducing a correction factor into the objective function of the NCA algorithm to reduce the impact of sample imbalance on model training. …”
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  16. 256

    Versatility Evaluation of Landslide Risk with Window Sizes and Sampling Techniques Based on Deep Learning by Fudong Ren, Koichi Isobe

    Published 2024-11-01
    “…These techniques, less commonly applied in traditional machine learning approaches to landslide detection, help address the issue of data imbalance often seen in landslide datasets, where instances of landslides are far outnumbered by non-landslide occurrences. …”
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  17. 257

    Universal Knowledge Graph Embedding Framework Based on High-Quality Negative Sampling and Weighting by Pengfei Zhang, Huang Peng, Yang Fang, Zongqiang Yang, Yanli Hu, Zhen Tan, Weidong Xiao

    Published 2024-11-01
    “…To address this issue, we propose a universal knowledge graph embedding framework based on high-quality negative sampling and weighting, called HNSW-KGE. …”
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  18. 258
  19. 259

    Issues in Philippine Public Procurement: A Content Analysis of Commission on Audit Annual Audit Reports by Dean Aljohn Imasa, Karl Campos

    Published 2025-01-01
    “…Employing directed content analysis with inductive coding, the study identifies 42 weaknesses in public procurement, categorized into procurement management, strategy and planning issues, execution and delivery challenges, financial and budgetary concerns, documentation and compliance gaps, and procurement method issues. …”
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