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Meta-Learning Approach for Adaptive Anomaly Detection from Multi-Scenario Video Surveillance
Published 2025-06-01“…Leveraging the swin transformer as a spatial feature extractor, the model captures rich hierarchical representations from surveillance videos. …”
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5283
On the convective nature of roll waves instability
Published 2005-01-01“…Starting from this result a linear spatial stability analysis of the one-dimensional flow model is performed, in terms of time asymptotic response to a pointwise time periodic disturbance. …”
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5284
Investigating the Nonlinear Relationship Between the Built Environment and Urban Vitality Based on Multi-Source Data and Interpretable Machine Learning
Published 2025-04-01“…Additionally, we analyze the determinants of urban vitality across both micro and macro-scales using multi-source data, semantic segmentation models, and street view imagery. Our findings reveal the following key insights: (1) the distribution of urban vitality exhibits spatial heterogeneity within the main urban area of Shanghai, with high vitality areas concentrated in the Huangpu District and at intersections with neighboring districts, demonstrating a decline from the center to the periphery; (2) the XGBoost model outperforms other comparative models, showcasing superior capabilities in simulating and predicting urban vitality; (3) among the various built environment factors influencing urban vitality, building coverage, population density, and distance to the CBD exert the most significant effects, while the green view index and the number of bus stops contribute relatively less; (4) all built environment factors demonstrate nonlinear impacts and exhibit certain threshold effects on urban vitality. …”
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5285
geodl: An R package for geospatial deep learning semantic segmentation using torch and terra.
Published 2024-01-01“…Common assessment metrics (i.e., overall accuracy, class-level recalls or producer's accuracies, class-level precisions or user's accuracies, and class-level F1-scores) are implemented along with a modified version of the unified focal loss framework, which allows for defining a variety of loss metrics using one consistent implementation and set of hyperparameters. Users can assess models using standard geospatial and remote sensing metrics and methods and use trained models to predict to large spatial extents. …”
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5286
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5287
Aboveground biomass density maps for post-hurricane Ian forest monitoring in Florida
Published 2025-07-01“…We combined Global Ecosystem Dynamics Investigation (GEDI) LiDAR data with synthetic aperture radar (SAR) and passive optical satellite imagery to model GEDI AGBD as a function of image-derived data, enabling predictions across the study area and producing continuous AGBD maps. …”
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5288
Dissecting cirrus clouds: navigating effects of turbulence on homogeneous ice formation
Published 2025-04-01“…Here we shed first light on how turbulent fluctuations in temperature and supersaturation interact with probabilistic homogeneous freezing. We show that spatial model resolution substantially below 1–10 m is needed to properly simulate homogeneous freezing events. …”
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HO 2 Generation Above Sprite‐Producing Thunderstorms Derived from Low‐Noise SMILES Observation Spectra
Published 2020-02-01“…A total of three areas was identified with enhanced HO 2 levels of approximately 10 25 molecules. A chemical sprite model indicates an increase in HO 2 in the considered altitude region; however, the predicted production due to a single sprite event is smaller than the observed enhancement. …”
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5291
Cognitive characteristics and ischemic prognosis of quantitative white matter hyperintensities in adult moyamoya disease
Published 2025-07-01“…Results MMD patients present decreases in intelligence (P = 0.000), spatial working memory (P = 0.011), verbal working memory 1 (P = 0.000) and 2 (P = 0.000), mental rotation (P = 0.008), and executive inhibition (P = 0.011). …”
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5292
Large-scale assessment of rainfall-induced landslide hazard based on hydrometeorological information: application to Partenio Massif (Italy)
Published 2025-08-01“…</p> <p>To extend the application to large areas, the uncertainties linked to the spatial variability of slope geomorphologic characteristics and hydrometeorological variables were considered as random errors. …”
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Changes in habitat suitability for wintering dabbling ducks during dry conditions in the Central Valley of California
Published 2023-01-01“…Overall, species distribution models created using data on the environmental conditions present at the time of bird observations can aid conservation efforts under extreme conditions over large spatial scales.…”
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Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film
Published 2018-01-01“…Using the model of nanowire medium (silver wires in silica host) we predict that 200 nm film of this hyperbolic metamaterial allows reaching almost total absorption of radiation throughout the visible band.…”
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ESLC-YOLOv8: Advancing real-time pineapple recognition with lightweight deep learning
Published 2025-12-01“…First, we propose the EIEStem module to enhance the backbone network's convolutional layers, significantly improving edge feature extraction and spatial information preservation. Second, we introduce the v7DS (YOLOv7 DownSample) module to replace conventional downsampling operators, effectively minimizing feature information loss during resolution reduction. …”
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5298
Vegetation canopy height shapes bats’ occupancy: a remote sensing approach
Published 2024-12-01“…All species’ best-ranking occupancy models included at least one climatic variable (temperature, humidity, or potential evapotranspiration), demonstrating the importance of climate when predicting bat distribution. …”
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5299
Prevalence and factors associated with unintended pregnancy among women in Ghana
Published 2025-07-01“…Regional variations in the prevalence of unintended pregnancy were presented using a spatial map. A mixed-effect multilevel binary logistic regression models were fitted to examine the factors associated with unintended pregnancy using a four-modelled approach. …”
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