Showing 261 - 280 results of 413 for search 'complex spatial randomness', query time: 0.11s Refine Results
  1. 261

    End-to-End Vector Simplification for Building Contours via a Sequence Generation Model by Longfei Cui, Junkui Xu, Lin Jiang, Haizhong Qian

    Published 2025-03-01
    “…Traditional methods often rely on complex rule design, feature engineering, and iterative optimization. …”
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    Article
  2. 262

    Integrating Genetic Algorithm and Geographically Weighted Approaches into Machine Learning Improves Soil pH Prediction in China by Wantao Zhang, Jingyi Ji, Binbin Li, Xiao Deng, Mingxiang Xu

    Published 2025-03-01
    “…However, when using these models, the spatial heterogeneity of the relationship between soil and environmental variables is often not fully considered, which limits the predictive capability of the models, especially in large-scale regions with complex soil landscapes. …”
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    Article
  3. 263

    Reconstruction of the Magnetic Particle Imaging System Matrix Using Symmetries and Compressed Sensing by A. Weber, T. Knopp

    Published 2015-01-01
    “…Magnetic particle imaging (MPI) is a tomographic imaging technique that allows the determination of the 3D spatial distribution of superparamagnetic iron oxide nanoparticles. …”
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    Article
  4. 264

    Hybrid approaches enhance hydrological model usability for local streamflow prediction by Yiheng Du, Ilias G. Pechlivanidis

    Published 2025-04-01
    “…Abstract Hydrological models are essential for predicting water flux dynamics, including extremes, and managing water resources, yet traditional process-based large-scale models often struggle with accuracy and process understanding due to their inability to represent complex, non-linear hydrometeorological processes, limiting their effectiveness in local conditions. …”
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    Article
  5. 265

    Patterns and Mechanisms of Niche Partitioning Between Related Parasitoids (Hymenoptera) Sharing the Same Host Species by Vladimir E. Gokhman

    Published 2025-03-01
    “…Nevertheless, many cases of coexistence of related wasp species on the same host defy simple explanations since they apparently result from complex interactions between the host and its parasitoids. …”
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    Article
  6. 266

    Spatiotemporal Evolution of Precipitation Concentration in the Yangtze River Basin (1960–2019): Associations with Extreme Heavy Precipitation and Validation Using GPM IMERG by Tao Jin, Yuliang Zhou, Ping Zhou, Ziling Zheng, Rongxing Zhou, Yanqi Wei, Yuliang Zhang, Juliang Jin

    Published 2025-08-01
    “…Key methods include Mann–Kendall trend tests for detecting changes, Hurst exponents for persistence, Pettitt detection for abrupt shifts, random forest modeling to assess atmospheric teleconnections, and hot spot analysis for spatial clustering. …”
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    Article
  7. 267

    iMESc – an interactive machine learning app for environmental sciences by Danilo Cândido Vieira, Danilo Cândido Vieira, Fabiana S. Paula, Luciana Erika Yaginuma, Gustavo Fonseca

    Published 2025-01-01
    “…The SuperSOM model achieved an R2 of 0.60 for training and 0.291 for testing, identifying spatial patterns across depth zones. Finally, a hybrid model combining an unsupervised SOM and followed by the supervised Random Forest model returned an accuracy of 83.47% for the training and 80.77% for the test, with Bathymetry, Chlorophyll, and Coarse Sand as key predictive variables. …”
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    Article
  8. 268

    YOLOv9-LSBN: An Improved YOLOv9 Model for Cotton Pest and Disease by Ruohong He, Fengkui Zhang, Jikui Zhu, Yulong Wang, Daorina Yang, Ting Zhang, Ping Li

    Published 2025-01-01
    “…To achieve accurate identification of cotton aphids and diseases in natural complex environments, an enhanced YOLOv9 model named YOLOv9-LSBN (Large Selective Kernel Network with Bidirectional Feature Pyramid) is proposed. …”
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    Article
  9. 269

    Spatiotemporal Mapping and Driving Mechanism of Crop Planting Patterns on the Jianghan Plain Based on Multisource Remote Sensing Fusion and Sample Migration by Pengnan Xiao, Yong Zhou, Jianping Qian, Yujie Liu, Xigui Li

    Published 2025-07-01
    “…The accurate mapping of crop planting patterns is vital for sustainable agriculture and food security, particularly in regions with complex cropping systems and limited cloud-free observations. …”
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    Article
  10. 270

    A Spatiotemporal Sequence Prediction Framework Based on Mask Reconstruction: Application to Short-Duration Precipitation Radar Echoes by Zhi Yang, Changzheng Liu, Ping Mei, Lei Wang

    Published 2025-07-01
    “…However, existing spatiotemporal sequence prediction methods still struggle to disentangle complex spatiotemporal dependencies effectively and fail to capture the nonlinear chaotic characteristics of precipitation systems. …”
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    Article
  11. 271

    Dynamic Reliability Evaluation of Road Vehicle Subjected to Turbulent Crosswinds Based on Monte Carlo Simulation by Bin Wang, Yongle Li, Helu Yu, Haili Liao

    Published 2017-01-01
    “…Actually, the natural wind is a random process in time domain due to turbulence, and the surface roughness of a road is also a random process but in spatial domain. …”
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    Article
  12. 272

    Data-driven segmentation of cortical calcium dynamics. by Sydney C Weiser, Brian R Mullen, Desiderio Ascencio, James B Ackman

    Published 2023-05-01
    “…We show that a set of spatial and temporal metrics obtained from the components can be used to build a random forest classifier, which separates neural activity and artifact components automatically at human performance. …”
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    Article
  13. 273

    Failure Risk Investigation of Transmission Tower-line System Under Sequential Earthquake Considering Input Directionality by LIU Juncai, DONG You

    Published 2025-01-01
    “…ObjectiveTransmission tower-line structures are representative spatial distribution systems. They typically span hundreds or even thousands of kilometers and inevitably traverse regions with high seismic intensities. …”
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    Article
  14. 274

    Application of Jane Jacobs’ Theory in the Analysis of the Borders of Territory Monitoring in Urban Spaces from Citizens’ Points of View in Bandar Abbas by Amirhamzeh Shahbazi, Esmaeil zakerimnabi, Alireza Shahbazi

    Published 2025-06-01
    “…The research underscored the complexity of urban surveillance, indicating that effective monitoring extended beyond spatial design to encompass the diverse experiences and backgrounds of citizens. …”
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    Article
  15. 275

    Patterns of nutrients and algal biomass in an intermittent Mediterranean river under intense human activity by Gabriela Córdoba-Ariza, Rafael Muñoz-Mas, Ramon J. Batalla, Josep Mas-Pla, Sergi Sabater

    Published 2025-04-01
    “…To achieve this, monthly measurements of water quality, physicochemical characteristics and algal biomass were collected at 23 different locations over 14 months, coinciding with the onset of drought conditions in the region. Random forest regression and the model-agnostic SHapley Additive exPlanations (SHAP) enabled us to identify the most influential hydrological and land use features for nutrient concentrations and map the spatial variation of their effects across the basin. …”
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    Article
  16. 276

    Asthma prevalence and risk factors in Poonch and Rajouri districts, India: an epidemiological and geospatial analysis by Arshad Ahmed, Kheraj, Jorge Rocha, Alireza Mohammadi

    Published 2025-07-01
    “…Asthma prevalence among Gujjar and Bakarwal tribes in the high-altitude Himalayas is shaped by a complex interplay of altitude, socioeconomic status, and demographic factors. …”
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    Article
  17. 277

    A Hybrid Regression–Kriging–Machine Learning Framework for Imputing Missing TROPOMI NO<sub>2</sub> Data over Taiwan by Alyssa Valerio, Yi-Chun Chen, Chian-Yi Liu, Yi-Ying Chen, Chuan-Yao Lin

    Published 2025-06-01
    “…This structure enables the framework to capture both spatial autocorrelation and complex relationships between NO<sub>2</sub> concentrations and environmental drivers. …”
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    Article
  18. 278

    Pediatric BurnNet: Robust multi-class segmentation and severity recognition under real-world imaging conditions by Xiang Li, Zhen Liu, Lei Liu

    Published 2025-07-01
    “…Images were resized to 256 × 256 pixels and augmented by flipping and random rotation. A DeepLabv3 network with a ResNet101 backbone was enhanced with channel- and spatial attention modules, dropout-reinforced Atrous Spatial Pyramid Pooling, and a weighted cross-entropy loss to counter class imbalance. …”
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    Article
  19. 279

    Association between landscape transformation and the Chagas disease vector dynamics in a rural area with continuous surveillance and control by Leonardo Sandon, Diego Weinberg, Manuel O. Espinosa, Marcelo C. Abril, Roberto Chuit, Ximena Porcasi, Maria V. Periago

    Published 2025-06-01
    “…While deforestation reduces sylvatic reservoirs, it also influences domestic triatomine populations, highlighting the complex interplay between environmental changes and vector ecology. …”
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  20. 280

    Obtaining Mode Shapes through the Karhunen-Loève Expansion for Distributed-Parameter Linear Systems by Claudio Wolter, Marcelo A. Trindade, Rubens Sampaio

    Published 2002-01-01
    “…It consists in decomposing a spatial correlation matrix, which can be obtained through numerical or physical experiments. …”
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