Showing 1,921 - 1,940 results of 18,849 for search 'sample random sampling', query time: 0.19s Refine Results
  1. 1921

    Fast Physical Random Bit Generation Based on a Broadband Chaotic Entropy Source Originated From a Filtered Feedback WRC-FPLD by Xi Tang, Guang-Qiong Xia, Can Ran, Tao Deng, Xiao-Dong Lin, Li Fan, Zi-Ye Gao, Gong-Ru Lin, Zheng-Mao Wu

    Published 2019-01-01
    “…Second, a broadband chaotic signal with a bandwidth beyond 20 GHz output from the WRC-FPLD is sampled and transferred to a digital bit sequence by an 8-bit analog-to-digital converter at a rate of 40 GS/s. …”
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    Article
  2. 1922

    Improved epigenetic age prediction models by combining sex chromosome and autosomal markers by Zhong Wan, Peter Henneman, Huub C. J. Hoefsloot, Ate D. Kloosterman, Pernette J. Verschure

    Published 2025-07-01
    “…Highlights A set of age-prediction models based on DNA methylation (DNAm) markers on sex chromosomes and autosomes was constructed using random forest regression (RFR). From the total dataset containing 1291 whole blood and 547 buffy coat blood samples, 860 whole blood samples were used as training set and 481 as test set, while 365 buffy coat datasets were used as training set and 182 as test set. …”
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    Article
  3. 1923

    Random X chromosome inactivation in female Charcot-Marie-Tooth disease type X1: insights from sural nerve biopsy analysis by Can Ebru Bekircan-Kurt, Evrim Aksu-Menges, Eray Taha Kumtepe, Ceren Damla Durmaz, Yunus Kasim Terzi, Zeynep Ergul-Ulger, Çagri Mesut Temucin, Sevim Erdem-Ozdamar, Ersin Tan, Burcu Balci-Hayta

    Published 2025-08-01
    “…XCI patterns were analyzed using the human androgen receptor (HUMARA) assay on archived fresh-frozen sural nerve biopsy samples performed prior the genetic diagnosis and compared with age-matched vasculitic neuropathy controls. …”
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    Article
  4. 1924
  5. 1925
  6. 1926

    Gear Meshing State Detection Based on Phase Vibration Measurement Technology by Rong Rong, Shi Dapeng, Wang Zhuo, Zhang Xu, Ding Xiaoyu

    Published 2022-10-01
    “…In order to solve the problem that the detection of gear meshing state requires a large number of data samples, a gear meshing state detection method based on phase vibration measurement technology is proposed. …”
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    Article
  7. 1927

    Effects of open-label placebos across populations and outcomes: an updated systematic review and meta-analysis of randomized controlled trials by Johannes C. Fendel, Carl Tiersch, Paul Sölder, Jens Gaab, Stefan Schmidt

    Published 2025-08-01
    “…For the first time, it directly tests whether OLPs differ in effects between clinical and non-clinical samples, and between self-report and objective outcomes. …”
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    Article
  8. 1928
  9. 1929

    COMPARATIVE MACHINE LEARNING ALGORITHM FOR CARDIOVASCULAR DISEASE PREDICTION by Ashish Mishra, Jyoti Mishra, Victor Hugo, Aloísio Vieira Lira Neto

    Published 2024-12-01
    “…The preliminary examination and evaluation predicted heart problems. The dataset has 303 samples with 14 features. The information is presented as a percentage of truth. …”
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    Article
  10. 1930

    Machine learning-based stem taper model: a case study with Brutian pine by Fadime Sağlam

    Published 2025-07-01
    “…A total of 121 destructively sampled trees were measured for stem diameter at multiple heights, and various taper models were evaluated for their accuracy. …”
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    Article
  11. 1931

    Predicting and Mapping of Soil Organic Matter with Machine Learning in the Black Soil Region of the Southern Northeast Plain of China by Yiyang Li, Gang Yao, Shuangyi Li, Xiuru Dong

    Published 2025-02-01
    “…The models were trained by using 1554 surface soil samples and 19 auxiliary variables. Recursive feature elimination was used as a feature selection method to identify effective variables. …”
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    Article
  12. 1932

    Environmental conditions explain variability in concentrations of nutrients but not emerging contaminants by Megan L. Fork, Jerker Fick, Alexander J. Reisinger, Peter M. Groffman, Emma J. Rosi

    Published 2025-03-01
    “…While pharmaceutical concentrations in streams and rivers are often below the thresholds for acute toxicity, they nonetheless disrupt ecology through changes to organisms' physiology, metabolism, and behavior. However, analyzing samples for the wide range of manufactured pharmaceuticals is often prohibitively expensive for many monitoring efforts. …”
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    Article
  13. 1933
  14. 1934

    Evaluation of machine learning algorithm capability for Bosten Lake Wetland classification based on multi-temporal Sentinel-2 data by Feiying Xia, Guanghui Lv

    Published 2024-12-01
    “…However, existing methods for classifying wetlands are of limited accuracy, and it is difficult to acquire consistent samples over time. Therefore, precise classification methods are required to facilitate wetland conservation and ecological restoration. …”
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    Article
  15. 1935

    Evaluation of landslide susceptibility of mountain highway based on RF and SVM models by Qingfeng He, Shoulong Wu, Xia Zhao, Zhankun Hui, Zhengang Wang, Paraskevas Tsangaratos, Ioanna Ilia, Wei Chen, Yixin Chen, Yiheng Hao

    Published 2025-07-01
    “…This study evaluates landslide susceptibility along the Lizha-Jiezi section of China’s G345 national highway using Random Forest (RF) and Support Vector Machine (SVM) models. …”
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    Article
  16. 1936

    A Comprehensive Study Employing Computational Analysis and Mendelian Randomization Has Revealed the Impact of Key Genes on Liver Cancer by Size Li, Wenying Qi, Junzheng Wu, Chunhua Luo, Shihao Zheng, Xu Cao, Wei Wang, Qiyao Liu, Hongbo Du, Xiaoke Li, Xiaobin Zao, Yongan Ye

    Published 2025-05-01
    “…Detection of rat and clinical samples further confirmed the upregulation of these genes in HCC, supporting their potential as therapeutic targets. …”
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    Article
  17. 1937
  18. 1938

    Radar Echo Characteristics and Recognition of Warm-sector Torrential Rain in Sichuan Basin by Luo Hui, Xiao Dixiang, Kuang Qiuming, Qing Quan, Kang Lan

    Published 2020-07-01
    “…Feature vectors for identifying early and mature stages of torrential rain in warm regions are constructed and the selected samples are studied by random forest machine learning method. …”
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    Article
  19. 1939
  20. 1940

    Unveiling the diagnostic and pro-inflammatory role of crohn’s disease: insights from 16 S-guided discovery and species-specific validation by Yao Xu, Runxiang Xie, Yuqing Weng, Yewei Fang, Huimin Chen, Shuan Tao, He Zhang, Yawen Ye, Xinyu Deng, Axiang Han, Qi Jiang, Wei Liang

    Published 2025-07-01
    “…Methods We performed comprehensive 16 S rRNA sequencing on fecal samples from active CD patients, inactive CD patients, and healthy controls. …”
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    Article