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Como lidar com dados hierárquicos / aninhados no aprendizado de máquina
Vou explicar meu problema com um exemplo. Suponha que você queira prever a renda de um indivíduo, com alguns atributos: {Idade, Sexo, País, Região, Cidade}. Você tem um conjunto de dados de treinamento como esse train <- data.frame(CountryID=c(1,1,1,1, 2,2,2,2, 3,3,3,3), RegionID=c(1,1,1,2, 3,3,4,4, 5,5,5,5), CityID=c(1,1,2,3, 4,5,6,6, 7,7,7,8), Age=c(23,48,62,63, 25,41,45,19, 37,41,31,50), Gender=factor(c("M","F","M","F", …
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regression
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multilevel-analysis
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measurement-error
errors-in-variables
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pca
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