Explicaré mi problema con un ejemplo. Suponga que desea predecir el ingreso de un individuo dados algunos atributos: {Edad, Sexo, País, Región, Ciudad}. Tienes un conjunto de datos de entrenamiento como este train <- data.frame(CountryID=c(1,1,1,1, 2,2,2,2, 3,3,3,3), RegionID=c(1,1,1,2,...
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Cómo lidiar con datos jerárquicos / anidados en el aprendizaje automático
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