Showing 501 - 520 results of 1,109 for search 'variations model composition', query time: 0.14s Refine Results
  1. 501

    A Model Based on Neural Network to Predict Surface Settlement During Subway Station Construction: A Case Study of the Dongba-Zhongjie Station in Beijing, China by Jiaqi Zhang, Hua Jiang, Jinsen Wang, Jili Feng

    Published 2025-05-01
    “…To overcome challenges such as missing on-site settlement data and a limited number of monitoring points, this study proposes a composite prediction model that integrates finite element analysis, a time-series interval GA-BP neural network, and variational mode decomposition (VMD) techniques. …”
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  2. 502

    From pixels to planning: scale-free active inference by Karl Friston, Karl Friston, Conor Heins, Tim Verbelen, Lancelot Da Costa, Lancelot Da Costa, Tommaso Salvatori, Dimitrije Markovic, Dimitrije Markovic, Alexander Tschantz, Magnus Koudahl, Christopher Buckley, Christopher Buckley, Thomas Parr

    Published 2025-06-01
    “…By construction, these scale-invariant models can be used to learn compositionality over space and time, furnishing models of paths or orbits: that is, events of increasing temporal depth and itinerancy. …”
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  3. 503

    Spatial (Mis)Matches Between Biodiversity and Habitat Quality Under Multi-Scenarios: A Case Study in Shandong Province, Eastern China by Xiaoyin Sun, Ruifeng Shan, Qingxin Luan, Yuee Zhang, Zhicong Chen

    Published 2024-12-01
    “…Correlation analysis showed that related coefficients between HQ and four biodiversity indices (vertebrate, vascular plant, and vegetation formation type richness, and comprehensive biodiversity index) were all significant (<i>p</i> < 0.01), and coefficients were highest for the biodiversity composite index. An analysis of relative importance by the random forest algorithm indicated significant variation in driving factors for spatial distribution of HQ, biodiversity, and matches between them. …”
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  4. 504

    Determinants Factors in Predicting Life Expectancy Using Machine Learning by B. Kouame Amos, I. V. Smirnov

    Published 2023-01-01
    “…For model selection, the Akaike information criterion, the coefficient of variation and the mean square error were used. …”
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  5. 505
  6. 506

    A HABITAT SUITABILITY APPROACH TO EVALUATING LANDSCAPE PATTERNS FOR EASTERN WILD TURKEY by Kathleen K. Fleming, William F. Porter

    Published 2000-01-01
    “…Habitat suitability was defined for each pixel in the land‐cover classification as the average of the 2 models. Together, the models predicted considerable variation in habitat suitability across New York. …”
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  7. 507

    Distribution patterns of gross primary production of mangrove ecosystems in Hainan Island and their driving mechanisms by ZHENG Yinqi1,2,3, SHI Xian3,4, CHEN Quan3,5, WU Lan3,5, CUI Wei6, WANG Wenmei1,2, SUN Zhongyi3,5*, TAN Ke7*

    Published 2024-08-01
    “…In this paper, the GPP of mangrove ecosystems in Hainan Island from 2016 to 2020 were estimated based on the mangrove vegetation photosynthesis-light use efficiency (MVP-LUE) model using Sentinel-2 imagery and environmental data, and the spatiotemporal distribution pattern of GPP and its driving mechanism were explored. …”
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  8. 508

    Evaluation of the current status and risks of aquatic ecology in the Jialing River Basin based on the characteristics and succession trends of phytoplankton communities by Maojin Huang, Fei Xu, Jia Xia, Xue Yang, Fubin Zhang, Siyao Liu, Tuo Zhang

    Published 2025-01-01
    “…Morphological identification methods, random forest, neutral community model, and modified stochasticity ratio were used to analyze phytoplankton composition, environmental drivers, and community assembly mechanisms. …”
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    Article
  9. 509

    Bio-Impedance Analysis of Human Upper Limbs Based on Transient Simulation Using the Finite Element Method by Enver Salkim, Tayfun Abut

    Published 2024-05-01
    “…The model can provide helpful insight into the effect of dielectric properties on the impedance variation of the upper limbs, which is otherwise challenging to investigate in practical studies. …”
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  12. 512

    Evaluating the impacts of xylo-oligosaccharides on growth performance of broiler chickens: A meta-analytical study by M. Naeem, Dianna Bourassa, Samuel Rochell, Mike Bedford

    Published 2025-09-01
    “…Correlation analysis revealed a significant positive association between XOS levels and both ADG (R2 = 0.023, P = 0.031) and ADFI (R2 = 0.038, P = 0.009), while FCR showed no significant correlation (R2 = 0.004, P = 0.391). A predictive model for ADG (R² = 0.850, RMSE = 0.135) accounted for 85 % of the variation and demonstrated reliability through cross-validation, making it a robust for forecasting growth performance based on XOS inclusion rates. …”
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  13. 513

    A MATHEMATICAL APPROACH TO INVESTMENT WITH CHARGE ON BALANCE AND VOLUNTARY CONTRIBUTIONS UNDER WEIBULL MORTALITY FORCE FUNCTION by Edikan Edem Akpanibah, Peter Benneth, Ase Matthias Esabai

    Published 2025-01-01
    “…To achieve this, there is need to develop an optimal portfolio which considers the volatility of the stock market price consisting of one risk-free asset and a risky asset which follows the Heston volatility model (HVM). Also, the portfolio considers additional voluntary contributions (AVC) by members, tax on the stock market price, charge on balance (CB), and the mortality risk of the pension scheme members (PSM) modeled by the Weibull mortality force function.  …”
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  14. 514

    Continuous carbon fiber 3D printing with interweaving deposition for enhanced mechanical performance in fused filament fabrication by A. ElSherbiny, A.J. Qureshi, P. Mertiny

    Published 2025-07-01
    “…Representative volume element modeling and finite element analysis were conducted to evaluate the mechanical behavior, with results validated through experimental mechanical testing. …”
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    The Characteristics and Driving Factors of Soil Salinisation in the Irrigated Area on the Southern Bank of the Yellow River in Inner Mongolia: A Assessment of the Donghaixin Irriga... by Ziyuan Qin, Tangzhe Nie, Ying Wang, Hexiang Zheng, Changfu Tong, Jun Wang, Rongyang Wang, Hongfei Hou

    Published 2025-03-01
    “…This study examines the spatial distribution and determinants of soil salinisation through macro-environmental variables and micro-ion composition, integrating regression models and groundwater ion characteristics to elucidate the patterns and causes of soil salinisation systematically. …”
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  17. 517

    Laser-induced Breakdown Spectroscopy Based on Pre-classification Strategy for Quantitative Analysis of Rock Samples by Weiheng KONG, Lingwei ZENG, Yu RAO, Sha CHEN, Xu WANG, Yanting YANG, Yixiang DUAN, Qingwen FAN

    Published 2023-08-01
    “…Results demonstrate a notable improvement in the accuracy of quantitative analysis compared to traditional standard curve models. This model not only diminishes the impact of matrix effects on quantitative analysis but also corrects instabilities arising from hardware, environmental conditions, and sample variations. …”
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  18. 518
  19. 519

    Learning from the local: the variety and spatial pattern of vocal mimicry in songs of the invasive white-rumped shama in Taiwan by Bao-Sen Shieh, Shih-Hsiung Liang, Shuo-Chen Chang

    Published 2025-03-01
    “…We suggest that individual differences play a crucial role in the model selection of heterospecific mimicry, and these differences may result from variations in individual learning ability or preferences, or from variations in the local auditory environment where the individuals inhabit.…”
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  20. 520

    Multiproxy analysis of paleoredox conditions, paleoproductivity and organic matter enrichment in Cretaceous mudrocks of Bombe-Ediki and environs in the Douala sub-basin by Ngong Roger Ngia, Elie Fosso Menkem, Christopher Fuanya, Christopher M. Agyingi

    Published 2025-03-01
    “…Elemental compositions and their ratios suggest that the mudrocks were dominantly derived from a source area mainly consisting of felsic igneous rock with more silica (granitic rock) than an average granodiorite. …”
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