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Regresión global no lineal para objetos aleatorios a través de expectativas condicionales débiles

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Este estudio introduce un nuevo modelo de regresión de Fréchet no lineal para datos complejos con valores de objeto. El método extiende las técnicas existentes, ofreciendo un marco sólido para analizar diversos conjuntos de datos no euclidianos.

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Primario 62G05, 62J02Objeto aleatorioEspacios métricosRegresión objeto-objetoreproduciendo espacios de Hilbert del núcleosecundario 62G08, 62J99Expectativa condicional débil

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Área de la Ciencia:

  • Las estadísticas
  • Aprendizaje automático
  • Ciencia de los datos

Sus antecedentes:

  • Los datos con valor de objeto de espacios métricos son cada vez más comunes.
  • Los modelos de regresión existentes luchan con variables de predicción y respuesta complejas y no euclidianas.
  • Falta un marco general para la regresión valorada por objeto.

Objetivo del estudio:

  • Desarrollar un marco general de regresión no lineal para datos con valores de objeto.
  • Para introducir una media de Fréchet condicional débil utilizando los operadores de Carleman.
  • Extender el análisis de regresión a espacios complejos de predicción y respuesta no euclidianos.

Principales métodos:

  • Utilizando la reproducción del espacio de Hilbert del núcleo (RKHS) para el modelado no lineal.
  • Definición de una media condicional débil de Fréchet a través de los operadores de Carleman.
  • El establecimiento de relaciones entre medios condicionales y condicionales débiles de Fréchet.

Principales resultados:

  • Se propone un nuevo modelo de regresión global no lineal de Fréchet.
  • El nuevo modelo abarca métodos existentes como la regresión de Fréchet de núcleo lineal.
  • Las propiedades teóricas de las estimaciones se analizan utilizando la geometría intrínseca de los espacios métricos.

Conclusiones:

  • El método propuesto proporciona una herramienta poderosa para analizar datos complejos con valores de objeto.
  • El marco es versátil, aplicable a varios tipos de datos no euclidianos.
  • Los estudios numéricos confirman la eficacia del método para aplicaciones del mundo real.