Preguntas etiquetadas con conv-neural-network

Las redes neuronales convolucionales son un tipo de red neuronal en la que solo existen subconjuntos de posibles conexiones entre capas para crear regiones superpuestas. Se usan comúnmente para tareas visuales.

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Cómo lidiar con datos jerárquicos / anidados en el aprendizaje automático

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,...

regression machine-learning multilevel-analysis correlation dataset spatial paired-comparisons cross-correlation clustering aic bic dependent-variable k-means mean standard-error measurement-error errors-in-variables regression multiple-regression pca linear-model dimensionality-reduction machine-learning neural-networks deep-learning conv-neural-network computer-vision clustering spss r weighted-data wilcoxon-signed-rank bayesian hierarchical-bayesian bugs stan distributions categorical-data variance ecology r survival regression r-squared descriptive-statistics cross-section maximum-likelihood factor-analysis likert r multiple-imputation propensity-scores distributions t-test logit probit z-test confidence-interval poisson-distribution deep-learning conv-neural-network residual-networks r survey wilcoxon-mann-whitney ranking kruskal-wallis bias loss-functions frequentist decision-theory risk machine-learning distributions normal-distribution multivariate-analysis inference dataset factor-analysis survey multilevel-analysis clinical-trials
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¿Pueden los grados de libertad ser un número no entero?

Cuando uso GAM, me da un DF residual de 26.626.626.6 (última línea en el código). Qué significa eso? Yendo más allá del ejemplo de GAM, en general, ¿puede el número de grados de libertad ser un número no entero? > library(gam) > summary(gam(mpg~lo(wt),data=mtcars)) Call: gam(formula = mpg ~...

r degrees-of-freedom gam machine-learning pca lasso probability self-study bootstrap expected-value regression machine-learning linear-model probability simulation random-generation machine-learning distributions svm libsvm classification pca multivariate-analysis feature-selection archaeology r regression dataset simulation r regression time-series forecasting predictive-models r mean sem lavaan machine-learning regularization regression conv-neural-network convolution classification deep-learning conv-neural-network regression categorical-data econometrics r confirmatory-factor scale-invariance self-study unbiased-estimator mse regression residuals sampling random-variable sample probability random-variable convergence r survival weibull references autocorrelation hypothesis-testing distributions correlation regression statistical-significance regression-coefficients univariate categorical-data chi-squared regression machine-learning multiple-regression categorical-data linear-model pca factor-analysis factor-rotation classification scikit-learn logistic p-value regression panel-data multilevel-analysis variance bootstrap bias probability r distributions interquartile time-series hypothesis-testing normal-distribution normality-assumption kurtosis arima panel-data stata clustered-standard-errors machine-learning optimization lasso multivariate-analysis ancova machine-learning cross-validation