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Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
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Integración de la inteligencia geoespacial y el aprendizaje automático para el mapeo de la susceptibilidad a

Mehdi Rahimi1, Bahram Malekmohammadi2, Mohammad Karimi Firozjaei3

  • 1Graduate Faculty of Environment, University of Tehran, Tehran, Iran.

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PubMed
Resumen
Este resumen es generado por máquina.

Los modelos avanzados de aprendizaje automático, incluidos los métodos de conjunto, mapean efectivamente la susceptibilidad a las inundaciones. Un modelo de votación conjunto que integraba múltiples algoritmos demostró una precisión superior en la identificación de áreas propensas a inundaciones de alto riesgo.

Palabras clave:
Cartografía de las inundaciones.El análisis de datos geoespaciales.El aprendizaje automático es el aprendizaje automático.Mapeo de la cartografía.Susceptibilidad Susceptibilidad.

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Área de la Ciencia:

  • Ciencias ambientales Ciencias ambientales.
  • El análisis geoespacial.
  • Aprendizaje automático Aprendizaje automático.

Sus antecedentes:

  • El mapeo de la susceptibilidad a las inundaciones es crucial para la reducción del riesgo de desastres.
  • La teledetección y el aprendizaje automático ofrecen herramientas poderosas para este propósito.

Objetivo del estudio:

  • Evaluar cinco algoritmos de aprendizaje automático (XGBoost, DT, RF, LightGBM, GLM) para el mapeo de la susceptibilidad a las inundaciones.
  • Para evaluar el rendimiento de un modelo de votación conjunto que integra estos algoritmos.

Principales métodos:

  • Se utilizaron datos sobre la extensión de las inundaciones (2000-2018) de la Base de Datos de Inundaciones Globales (GFD).
  • Incorporó diversos datos espaciales auxiliares (clima, topografía, hidrología, cubierta de la tierra).
  • Comparó el rendimiento de modelos individuales (XGBoost, RF, LightGBM, DT, GLM) y un modelo de votación conjunto utilizando valores de AUC.

Principales resultados:

  • XGBoost (AUC=0.985), RF (AUC=0.984), y LightGBM (AUC=0.982) mostraron un fuerte rendimiento predictivo.
  • El modelo de votación en conjunto logró la mayor precisión (AUC = 0,994), superando a todos los modelos individuales.
  • DT (AUC=0.972) mostró una precisión moderada, mientras que GLM (AUC=0.879) tuvo la más baja.

Conclusiones:

  • El aprendizaje automático, especialmente los marcos de conjunto, mejora significativamente la precisión y la confiabilidad del mapeo de la susceptibilidad a inundaciones.
  • Estas técnicas avanzadas son herramientas valiosas para la gestión eficaz del riesgo de inundación y el análisis espacial.